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fe1e937f18
* Changed README.md * Changed docs notebooks --------- Co-authored-by: Inga Ulusoy <inga.ulusoy@uni-heidelberg.de>
642 строки
25 KiB
Python
642 строки
25 KiB
Python
from ammico.utils import AnalysisMethod
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from torch import cuda, no_grad
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from PIL import Image
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from lavis.models import load_model_and_preprocess
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from typing import Optional
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class SummaryDetector(AnalysisMethod):
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allowed_model_types = [
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"base",
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"large",
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"vqa",
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]
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allowed_new_model_types = [
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"blip2_t5_pretrain_flant5xxl",
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"blip2_t5_pretrain_flant5xl",
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"blip2_t5_caption_coco_flant5xl",
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"blip2_opt_pretrain_opt2.7b",
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"blip2_opt_pretrain_opt6.7b",
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"blip2_opt_caption_coco_opt2.7b",
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"blip2_opt_caption_coco_opt6.7b",
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]
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all_allowed_model_types = allowed_model_types + allowed_new_model_types
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allowed_analysis_types = ["summary", "questions", "summary_and_questions"]
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def __init__(
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self,
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subdict: dict = {},
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model_type: str = "base",
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analysis_type: str = "summary_and_questions",
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list_of_questions: Optional[list[str]] = None,
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summary_model=None,
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summary_vis_processors=None,
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summary_vqa_model=None,
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summary_vqa_vis_processors=None,
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summary_vqa_txt_processors=None,
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summary_vqa_model_new=None,
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summary_vqa_vis_processors_new=None,
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summary_vqa_txt_processors_new=None,
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device_type: Optional[str] = None,
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) -> None:
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"""
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SummaryDetector class for analysing images using the blip_caption model.
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Args:
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subdict (dict, optional): Dictionary containing the image to be analysed. Defaults to {}.
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model_type (str, optional): Type of model to use. Can be "base" or "large" or "vqa" for blip_caption and VQA. Or can be one of the new models:
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"blip2_t5_pretrain_flant5xxl",
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"blip2_t5_pretrain_flant5xl",
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"blip2_t5_caption_coco_flant5xl",
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"blip2_opt_pretrain_opt2.7b",
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"blip2_opt_pretrain_opt6.7b",
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"blip2_opt_caption_coco_opt2.7b",
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"blip2_opt_caption_coco_opt6.7b". Defaults to "base".
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analysis_type (str, optional): Type of analysis to perform. Can be "summary", "questions" or "summary_and_questions". Defaults to "summary_and_questions".
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list_of_questions (list, optional): List of questions to answer. Defaults to ["Are there people in the image?", "What is this picture about?"].
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summary_model ([type], optional): blip_caption model. Defaults to None.
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summary_vis_processors ([type], optional): Preprocessors for visual inputs. Defaults to None.
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summary_vqa_model ([type], optional): blip_vqa model. Defaults to None.
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summary_vqa_vis_processors ([type], optional): Preprocessors for vqa visual inputs. Defaults to None.
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summary_vqa_txt_processors ([type], optional): Preprocessors for vqa text inputs. Defaults to None.
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summary_vqa_model_new ([type], optional): new_vqa model. Defaults to None.
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summary_vqa_vis_processors_new ([type], optional): Preprocessors for vqa visual inputs. Defaults to None.
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summary_vqa_txt_processors_new ([type], optional): Preprocessors for vqa text inputs. Defaults to None.
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Raises:
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ValueError: If analysis_type is not one of "summary", "questions" or "summary_and_questions".
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Returns:
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None.
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"""
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super().__init__(subdict)
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# check if analysis_type is valid
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if analysis_type not in self.allowed_analysis_types:
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raise ValueError(
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"analysis_type must be one of {}".format(self.allowed_analysis_types)
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)
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# check if device_type is valid
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if device_type is None:
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self.summary_device = "cuda" if cuda.is_available() else "cpu"
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elif device_type not in ["cuda", "cpu"]:
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raise ValueError("device_type must be one of {}".format(["cuda", "cpu"]))
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else:
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self.summary_device = device_type
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# check if model_type is valid
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if model_type not in self.all_allowed_model_types:
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raise ValueError(
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"Model type is not allowed - please select one of {}".format(
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self.all_allowed_model_types
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)
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)
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self.model_type = model_type
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self.analysis_type = analysis_type
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# check if list_of_questions is valid
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if list_of_questions is None and model_type in self.allowed_model_types:
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self.list_of_questions = [
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"Are there people in the image?",
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"What is this picture about?",
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]
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elif list_of_questions is None and model_type in self.allowed_new_model_types:
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self.list_of_questions = [
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"Question: Are there people in the image? Answer:",
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"Question: What is this picture about? Answer:",
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]
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elif (not isinstance(list_of_questions, list)) or (
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not all(isinstance(i, str) for i in list_of_questions)
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):
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raise ValueError(
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"list_of_questions must be a list of string (questions)"
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) # add sequence of questions
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else:
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self.list_of_questions = list_of_questions
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# load models and preprocessors
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if (
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model_type in self.allowed_model_types
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and (summary_model is None)
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and (summary_vis_processors is None)
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and (analysis_type == "summary" or analysis_type == "summary_and_questions")
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):
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self.summary_model, self.summary_vis_processors = self.load_model(
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model_type=model_type
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)
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else:
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self.summary_model = summary_model
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self.summary_vis_processors = summary_vis_processors
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if (
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model_type in self.allowed_model_types
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and (summary_vqa_model is None)
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and (summary_vqa_vis_processors is None)
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and (summary_vqa_txt_processors is None)
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and (
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analysis_type == "questions" or analysis_type == "summary_and_questions"
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)
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):
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(
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self.summary_vqa_model,
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self.summary_vqa_vis_processors,
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self.summary_vqa_txt_processors,
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) = self.load_vqa_model()
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else:
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self.summary_vqa_model = summary_vqa_model
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self.summary_vqa_vis_processors = summary_vqa_vis_processors
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self.summary_vqa_txt_processors = summary_vqa_txt_processors
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if (
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model_type in self.allowed_new_model_types
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and (summary_vqa_model_new is None)
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and (summary_vqa_vis_processors_new is None)
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and (summary_vqa_txt_processors_new is None)
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):
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(
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self.summary_vqa_model_new,
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self.summary_vqa_vis_processors_new,
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self.summary_vqa_txt_processors_new,
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) = self.load_new_model(model_type=model_type)
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else:
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self.summary_vqa_model_new = summary_vqa_model_new
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self.summary_vqa_vis_processors_new = summary_vqa_vis_processors_new
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self.summary_vqa_txt_processors_new = summary_vqa_txt_processors_new
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def load_model_base(self):
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"""
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Load base_coco blip_caption model and preprocessors for visual inputs from lavis.models.
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Args:
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Returns:
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summary_model (torch.nn.Module): model.
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summary_vis_processors (dict): preprocessors for visual inputs.
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"""
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summary_model, summary_vis_processors, _ = load_model_and_preprocess(
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name="blip_caption",
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model_type="base_coco",
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is_eval=True,
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device=self.summary_device,
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)
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return summary_model, summary_vis_processors
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def load_model_large(self):
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"""
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Load large_coco blip_caption model and preprocessors for visual inputs from lavis.models.
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Args:
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Returns:
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summary_model (torch.nn.Module): model.
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summary_vis_processors (dict): preprocessors for visual inputs.
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"""
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summary_model, summary_vis_processors, _ = load_model_and_preprocess(
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name="blip_caption",
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model_type="large_coco",
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is_eval=True,
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device=self.summary_device,
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)
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return summary_model, summary_vis_processors
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def load_model(self, model_type: str):
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"""
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Load blip_caption model and preprocessors for visual inputs from lavis.models.
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Args:
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model_type (str): type of the model.
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Returns:
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summary_model (torch.nn.Module): model.
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summary_vis_processors (dict): preprocessors for visual inputs.
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"""
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select_model = {
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"base": SummaryDetector.load_model_base,
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"large": SummaryDetector.load_model_large,
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}
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summary_model, summary_vis_processors = select_model[model_type](self)
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return summary_model, summary_vis_processors
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def load_vqa_model(self):
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"""
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Load blip_vqa model and preprocessors for visual and text inputs from lavis.models.
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Args:
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Returns:
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summary_vqa_model (torch.nn.Module): model.
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summary_vqa_vis_processors (dict): preprocessors for visual inputs.
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summary_vqa_txt_processors (dict): preprocessors for text inputs.
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"""
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(
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summary_vqa_model,
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summary_vqa_vis_processors,
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summary_vqa_txt_processors,
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) = load_model_and_preprocess(
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name="blip_vqa",
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model_type="vqav2",
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is_eval=True,
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device=self.summary_device,
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)
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return summary_vqa_model, summary_vqa_vis_processors, summary_vqa_txt_processors
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def analyse_image(
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self,
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subdict: dict = None,
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analysis_type: Optional[str] = None,
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list_of_questions: Optional[list[str]] = None,
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consequential_questions: bool = False,
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):
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"""
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Analyse image with blip_caption model.
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Args:
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analysis_type (str): type of the analysis.
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subdict (dict): dictionary with analising pictures.
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list_of_questions (list[str]): list of questions.
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consequential_questions (bool): whether to ask consequential questions. Works only for new BLIP2 models.
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Returns:
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self.subdict (dict): dictionary with analysis results.
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"""
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if analysis_type is None:
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analysis_type = self.analysis_type
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if subdict is not None:
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self.subdict = subdict
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if list_of_questions is not None:
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self.list_of_questions = list_of_questions
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if analysis_type == "summary_and_questions":
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if (
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self.model_type in self.allowed_model_types
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and self.analysis_type != "summary_and_questions"
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): # if model_type is not new and required model is absent
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if self.summary_model is None: # load summary model if it is not loaded
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self.summary_model, self.summary_vis_processors = self.load_model(
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model_type=self.model_type
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)
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elif (
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self.summary_vqa_model is None
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): # load vqa model if it is not loaded
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(
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self.summary_vqa_model,
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self.summary_vqa_vis_processors,
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self.summary_vqa_txt_processors,
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) = self.load_vqa_model()
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self.analysis_type = "summary_and_questions" # now all models are loaded, so you can perform any analysis
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self.analyse_summary(nondeterministic_summaries=True)
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self.analyse_questions(self.list_of_questions, consequential_questions)
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elif analysis_type == "summary":
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if (
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(self.model_type in self.allowed_model_types)
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and (self.analysis_type == "questions")
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and (self.summary_model is None)
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): # if model_type is not new and required model is absent
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(
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self.summary_model,
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self.summary_vis_processors,
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) = self.load_model( # load summary model if it is not loaded
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model_type=self.model_type
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)
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self.analysis_type = "summary_and_questions" # now all models are loaded, so you can perform any analysis
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self.analyse_summary(nondeterministic_summaries=True)
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elif analysis_type == "questions":
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if (
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(self.model_type in self.allowed_model_types)
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and (self.analysis_type == "summary")
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and (self.summary_vqa_model is None)
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): # if model_type is not new and required model is absent
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(
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self.summary_vqa_model, # load vqa model if it is not loaded
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self.summary_vqa_vis_processors,
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self.summary_vqa_txt_processors,
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) = self.load_vqa_model()
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self.analysis_type = "summary_and_questions" # now all models are loaded, so you can perform any analysis
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self.analyse_questions(self.list_of_questions, consequential_questions)
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else:
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raise ValueError(
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"analysis_type must be one of {}".format(self.allowed_analysis_types)
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)
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return self.subdict
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def analyse_summary(self, nondeterministic_summaries: bool = True):
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"""
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Create 1 constant and 3 non deterministic captions for image.
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Args:
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nondeterministic_summaries (bool): whether to create 3 non deterministic captions.
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Returns:
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self.subdict (dict): dictionary with analysis results.
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"""
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if self.model_type in self.allowed_model_types:
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vis_processors = self.summary_vis_processors
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model = self.summary_model
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elif self.model_type in self.allowed_new_model_types:
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vis_processors = self.summary_vqa_vis_processors_new
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model = self.summary_vqa_model_new
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else:
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raise ValueError(
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"Model type is not allowed - please select one of {}".format(
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self.all_allowed_model_types
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)
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)
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path = self.subdict["filename"]
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raw_image = Image.open(path).convert("RGB")
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image = vis_processors["eval"](raw_image).unsqueeze(0).to(self.summary_device)
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with no_grad():
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self.subdict["const_image_summary"] = model.generate({"image": image})[0]
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if nondeterministic_summaries:
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self.subdict["3_non-deterministic_summary"] = model.generate(
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{"image": image}, use_nucleus_sampling=True, num_captions=3
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)
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return self.subdict
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def analyse_questions(
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self, list_of_questions: list[str], consequential_questions: bool = False
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) -> dict:
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"""
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Generate answers to free-form questions about image written in natural language.
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Args:
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list_of_questions (list[str]): list of questions.
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consequential_questions (bool): whether to ask consequential questions. Works only for new BLIP2 models.
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Returns:
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self.subdict (dict): dictionary with answers to questions.
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"""
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model, vis_processors, txt_processors, model_old = self.check_model()
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if len(list_of_questions) > 0:
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path = self.subdict["filename"]
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raw_image = Image.open(path).convert("RGB")
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image = (
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vis_processors["eval"](raw_image).unsqueeze(0).to(self.summary_device)
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)
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question_batch = []
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list_of_questions_processed = []
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if model_old:
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for quest in list_of_questions:
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list_of_questions_processed.append(txt_processors["eval"](quest))
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else:
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for quest in list_of_questions:
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list_of_questions_processed.append((str)(quest))
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for quest in list_of_questions_processed:
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question_batch.append(quest)
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batch_size = len(list_of_questions)
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image_batch = image.repeat(batch_size, 1, 1, 1)
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if not consequential_questions:
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with no_grad():
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if model_old:
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answers_batch = model.predict_answers(
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samples={
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"image": image_batch,
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"text_input": question_batch,
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},
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inference_method="generate",
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)
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else:
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answers_batch = model.generate(
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{"image": image_batch, "prompt": question_batch}
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)
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for q, a in zip(list_of_questions, answers_batch):
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self.subdict[q] = a
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if consequential_questions and not model_old:
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query_with_context = ""
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for quest in question_batch:
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query_with_context = query_with_context + quest
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with no_grad():
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answer = model.generate(
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{"image": image, "prompt": query_with_context}
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)
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self.subdict[query_with_context] = answer[0]
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query_with_context = query_with_context + " " + answer[0] + ". "
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elif consequential_questions and model_old:
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raise ValueError(
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"Consequential questions are not allowed for old models"
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)
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else:
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print("Please, enter list of questions")
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return self.subdict
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def check_model(self):
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"""
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Check model type and return appropriate model and preprocessors.
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|
Args:
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Returns:
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model (nn.Module): model.
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vis_processors (dict): visual preprocessor.
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txt_processors (dict): text preprocessor.
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model_old (bool): whether model is old or new.
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"""
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if self.model_type in self.allowed_model_types:
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vis_processors = self.summary_vqa_vis_processors
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model = self.summary_vqa_model
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txt_processors = self.summary_vqa_txt_processors
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model_old = True
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elif self.model_type in self.allowed_new_model_types:
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vis_processors = self.summary_vqa_vis_processors_new
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model = self.summary_vqa_model_new
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txt_processors = self.summary_vqa_txt_processors_new
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model_old = False
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else:
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raise ValueError(
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"Model type is not allowed - please select one of {}".format(
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self.all_allowed_model_types
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)
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)
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return model, vis_processors, txt_processors, model_old
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def load_new_model(self, model_type: str):
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"""
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Load new BLIP2 models.
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|
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|
Args:
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model_type (str): type of the model.
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Returns:
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model (torch.nn.Module): model.
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vis_processors (dict): preprocessors for visual inputs.
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txt_processors (dict): preprocessors for text inputs.
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"""
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select_model = {
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"blip2_t5_pretrain_flant5xxl": SummaryDetector.load_model_blip2_t5_pretrain_flant5xxl,
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|
"blip2_t5_pretrain_flant5xl": SummaryDetector.load_model_blip2_t5_pretrain_flant5xl,
|
|
"blip2_t5_caption_coco_flant5xl": SummaryDetector.load_model_blip2_t5_caption_coco_flant5xl,
|
|
"blip2_opt_pretrain_opt2.7b": SummaryDetector.load_model_blip2_opt_pretrain_opt27b,
|
|
"blip2_opt_pretrain_opt6.7b": SummaryDetector.load_model_base_blip2_opt_pretrain_opt67b,
|
|
"blip2_opt_caption_coco_opt2.7b": SummaryDetector.load_model_blip2_opt_caption_coco_opt27b,
|
|
"blip2_opt_caption_coco_opt6.7b": SummaryDetector.load_model_base_blip2_opt_caption_coco_opt67b,
|
|
}
|
|
(
|
|
summary_vqa_model,
|
|
summary_vqa_vis_processors,
|
|
summary_vqa_txt_processors,
|
|
) = select_model[model_type](self)
|
|
return summary_vqa_model, summary_vqa_vis_processors, summary_vqa_txt_processors
|
|
|
|
def load_model_blip2_t5_pretrain_flant5xxl(self):
|
|
"""
|
|
Load BLIP2 model with FLAN-T5 XXL architecture.
|
|
|
|
Args:
|
|
|
|
Returns:
|
|
model (torch.nn.Module): model.
|
|
vis_processors (dict): preprocessors for visual inputs.
|
|
txt_processors (dict): preprocessors for text inputs.
|
|
"""
|
|
(
|
|
summary_vqa_model,
|
|
summary_vqa_vis_processors,
|
|
summary_vqa_txt_processors,
|
|
) = load_model_and_preprocess(
|
|
name="blip2_t5",
|
|
model_type="pretrain_flant5xxl",
|
|
is_eval=True,
|
|
device=self.summary_device,
|
|
)
|
|
return summary_vqa_model, summary_vqa_vis_processors, summary_vqa_txt_processors
|
|
|
|
def load_model_blip2_t5_pretrain_flant5xl(self):
|
|
"""
|
|
Load BLIP2 model with FLAN-T5 XL architecture.
|
|
|
|
Args:
|
|
|
|
Returns:
|
|
model (torch.nn.Module): model.
|
|
vis_processors (dict): preprocessors for visual inputs.
|
|
txt_processors (dict): preprocessors for text inputs.
|
|
"""
|
|
(
|
|
summary_vqa_model,
|
|
summary_vqa_vis_processors,
|
|
summary_vqa_txt_processors,
|
|
) = load_model_and_preprocess(
|
|
name="blip2_t5",
|
|
model_type="pretrain_flant5xl",
|
|
is_eval=True,
|
|
device=self.summary_device,
|
|
)
|
|
return summary_vqa_model, summary_vqa_vis_processors, summary_vqa_txt_processors
|
|
|
|
def load_model_blip2_t5_caption_coco_flant5xl(self):
|
|
"""
|
|
Load BLIP2 model with caption_coco_flant5xl architecture.
|
|
|
|
Args:
|
|
|
|
Returns:
|
|
model (torch.nn.Module): model.
|
|
vis_processors (dict): preprocessors for visual inputs.
|
|
txt_processors (dict): preprocessors for text inputs.
|
|
"""
|
|
(
|
|
summary_vqa_model,
|
|
summary_vqa_vis_processors,
|
|
summary_vqa_txt_processors,
|
|
) = load_model_and_preprocess(
|
|
name="blip2_t5",
|
|
model_type="caption_coco_flant5xl",
|
|
is_eval=True,
|
|
device=self.summary_device,
|
|
)
|
|
return summary_vqa_model, summary_vqa_vis_processors, summary_vqa_txt_processors
|
|
|
|
def load_model_blip2_opt_pretrain_opt27b(self):
|
|
"""
|
|
Load BLIP2 model with pretrain_opt2 architecture.
|
|
|
|
Args:
|
|
|
|
Returns:
|
|
model (torch.nn.Module): model.
|
|
vis_processors (dict): preprocessors for visual inputs.
|
|
txt_processors (dict): preprocessors for text inputs.
|
|
"""
|
|
(
|
|
summary_vqa_model,
|
|
summary_vqa_vis_processors,
|
|
summary_vqa_txt_processors,
|
|
) = load_model_and_preprocess(
|
|
name="blip2_opt",
|
|
model_type="pretrain_opt2.7b",
|
|
is_eval=True,
|
|
device=self.summary_device,
|
|
)
|
|
return summary_vqa_model, summary_vqa_vis_processors, summary_vqa_txt_processors
|
|
|
|
def load_model_base_blip2_opt_pretrain_opt67b(self):
|
|
"""
|
|
Load BLIP2 model with pretrain_opt6.7b architecture.
|
|
|
|
Args:
|
|
|
|
Returns:
|
|
model (torch.nn.Module): model.
|
|
vis_processors (dict): preprocessors for visual inputs.
|
|
txt_processors (dict): preprocessors for text inputs.
|
|
"""
|
|
(
|
|
summary_vqa_model,
|
|
summary_vqa_vis_processors,
|
|
summary_vqa_txt_processors,
|
|
) = load_model_and_preprocess(
|
|
name="blip2_opt",
|
|
model_type="pretrain_opt6.7b",
|
|
is_eval=True,
|
|
device=self.summary_device,
|
|
)
|
|
return summary_vqa_model, summary_vqa_vis_processors, summary_vqa_txt_processors
|
|
|
|
def load_model_blip2_opt_caption_coco_opt27b(self):
|
|
"""
|
|
Load BLIP2 model with caption_coco_opt2.7b architecture.
|
|
|
|
Args:
|
|
|
|
Returns:
|
|
model (torch.nn.Module): model.
|
|
vis_processors (dict): preprocessors for visual inputs.
|
|
txt_processors (dict): preprocessors for text inputs.
|
|
"""
|
|
(
|
|
summary_vqa_model,
|
|
summary_vqa_vis_processors,
|
|
summary_vqa_txt_processors,
|
|
) = load_model_and_preprocess(
|
|
name="blip2_opt",
|
|
model_type="caption_coco_opt2.7b",
|
|
is_eval=True,
|
|
device=self.summary_device,
|
|
)
|
|
return summary_vqa_model, summary_vqa_vis_processors, summary_vqa_txt_processors
|
|
|
|
def load_model_base_blip2_opt_caption_coco_opt67b(self):
|
|
"""
|
|
Load BLIP2 model with caption_coco_opt6.7b architecture.
|
|
|
|
Args:
|
|
|
|
Returns:
|
|
model (torch.nn.Module): model.
|
|
vis_processors (dict): preprocessors for visual inputs.
|
|
txt_processors (dict): preprocessors for text inputs.
|
|
"""
|
|
(
|
|
summary_vqa_model,
|
|
summary_vqa_vis_processors,
|
|
summary_vqa_txt_processors,
|
|
) = load_model_and_preprocess(
|
|
name="blip2_opt",
|
|
model_type="caption_coco_opt6.7b",
|
|
is_eval=True,
|
|
device=self.summary_device,
|
|
)
|
|
return summary_vqa_model, summary_vqa_vis_processors, summary_vqa_txt_processors
|