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- W4310428051 abstract "Broadspread use of medical imaging devices with digital storage has paved the way for curation of substantial data repositories. Fast access to image samples with similar appearance to suspected cases can help establish a consulting system for healthcare professionals, and improve diagnostic procedures while minimizing processing delays. However, manual querying of large data repositories is labor intensive. Content-based image retrieval (CBIR) offers an automated solution based on dense embedding vectors that represent image features to allow quantitative similarity assessments. Triplet learning has emerged as a powerful approach to recover embeddings in CBIR, albeit traditional loss functions ignore the dynamic relationship between opponent image classes. Here, we introduce a triplet-learning method for automated querying of medical image repositories based on a novel Opponent Class Adaptive Margin (OCAM) loss. OCAM uses a variable margin value that is updated continually during the course of training to maintain optimally discriminative representations. CBIR performance of OCAM is compared against state-of-the-art loss functions for representational learning on three public databases (gastrointestinal disease, skin lesion, lung disease). Comprehensive experiments in each application domain demonstrate the superior performance of OCAM against baselines." @default.
- W4310428051 created "2022-12-10" @default.
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- W4310428051 date "2022-11-22" @default.
- W4310428051 modified "2023-10-16" @default.
- W4310428051 title "Content-Based Medical Image Retrieval with Opponent Class Adaptive Margin Loss" @default.
- W4310428051 doi "https://doi.org/10.48550/arxiv.2211.15371" @default.
- W4310428051 hasPublicationYear "2022" @default.
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