MI-VisionShot: Few-shot adaptation of vision-language models for slide-level classification of histopathological images

• URL: http://arxiv.org/abs/2410.15881v1
• Date: Mon, 21 Oct 2024 11:01:20 GMT
• Title: MI-VisionShot: Few-shot adaptation of vision-language models for slide-level classification of histopathological images
• Authors: Pablo Meseguer, Rocío del Amor, Valery Naranjo,
• Abstract summary: MI-VisionShot is a training-free adaptation method on top of vision-language models to predict slide-level labels. Our framework takes advantage of the excellent representation learning of VLM to create prototype-based classifiers.
• Score: 1.927195358774599
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Vision-language supervision has made remarkable strides in learning visual representations from textual guidance. In digital pathology, vision-language models (VLM), pre-trained on curated datasets of histological image-captions, have been adapted to downstream tasks, such as region of interest classification. Zero-shot transfer for slide-level prediction has been formulated by MI-Zero, but it exhibits high variability depending on the textual prompts. Inspired by prototypical learning, we propose MI-VisionShot, a training-free adaptation method on top of VLMs to predict slide-level labels in few-shot learning scenarios. Our framework takes advantage of the excellent representation learning of VLM to create prototype-based classifiers under a multiple-instance setting by retrieving the most discriminative patches within each slide. Experimentation through different settings shows the ability of MI-VisionShot to surpass zero-shot transfer with lower variability, even in low-shot scenarios. Code coming soon at thttps://github.com/cvblab/MIVisionShot.

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