用于病理图像诊断的跨尺度多示例学习
Cross-scale Multi-instance Learning for Pathological Image Diagnosis
AI总结:
针对病理图像诊断中单一尺度多示例学习忽略跨尺度信息的问题,提出跨尺度MIL(CS-MIL)算法,通过显式聚合跨尺度关系提升诊断性能,并发布可视化数据集与开源代码。
摘要:
在数字病理学中,分析高分辨率全切片图像(WSIs)时处理跨多个尺度的信息带来了重大挑战。多示例学习(MIL)是处理高分辨率图像的常见解决方案,它通过对对象包(即较小图像补丁的集合)进行分类来工作。然而,此类处理通常在WSIs的单个尺度(例如20倍放大)下进行,忽略了人类病理学家进行诊断所必需的重要跨尺度信息。在本研究中,我们提出了一种新颖的跨尺度MIL算法,以将跨尺度关系显式聚合到单个MIL网络中,用于病理图像诊断。本文的贡献有三方面:(1)提出了一种集成多尺度信息和跨尺度关系的新颖跨尺度MIL(CS-MIL)算法;(2)创建并发布了一个具有尺度特定形态学特征的玩具数据集,以检查和可视化差异化的跨尺度注意力;(3)我们简单的跨尺度MIL策略在内部和公共数据集上均展示了卓越的性能。官方实现已公开于 https://github.com/hrlblab/CS-MIL。
英文摘要:
Analyzing high resolution whole slide images (WSIs) with regard to information across multiple scales poses a significant challenge in digital pathology. Multi-instance learning (MIL) is a common solution for working with high resolution images by classifying bags of objects (i.e. sets of smaller image patches). However, such processing is typically performed at a single scale (e.g., 20x magnification) of WSIs, disregarding the vital inter-scale information that is key to diagnoses by human pathologists. In this study, we propose a novel cross-scale MIL algorithm to explicitly aggregate inter-scale relationships into a single MIL network for pathological image diagnosis. The contribution of this paper is three-fold: (1) A novel cross-scale MIL (CS-MIL) algorithm that integrates the multi-scale information and the inter-scale relationships is proposed; (2) A toy dataset with scale-specific morphological features is created and released to examine and visualize differential cross-scale attention; (3) Superior performance on both in-house and public datasets is demonstrated by our simple cross-scale MIL strategy. The official implementation is publicly available at https://github.com/hrlblab/CS-MIL.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。