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Lightweight Frame Compensation for Real-Time Polyp Segmentation under Frame Skipping

Weihao Gao · 2026 · arXiv

DOI: 10.48550/arXiv.2610.31228 · open-access PDF

Portuguese

A segmentação de pólipos em tempo real na colonoscopia assistida por computador é prejudicada pela dificuldade de implantar modelos de alta precisão sob orçamentos de latência rigorosos. O skipping de quadros, que realiza a inferência de cada quadro K e reutiliza ou interpola o resto, melhora a capacidade de transmissão, mas introduz o desalinhamento do movimento e da lesão que degrada a consistência temporal. Para fechar essa lacuna, propomos o Compensador de quadro leve (LFC), um módulo plug-and-play de 77K-parâmetro inserido antes de uma espinha dorsal de segmentação congelada. Operando em uma janela de três quadros, o LFC fusiona quadros sucessivos através da atenção espacial-temporal

Machine translation (Meta M2M100); the English original follows.

Abstract

Real-time polyp segmentation in computer-assisted colonoscopy is hampered by the difficulty of deploying high-accuracy models under strict latency budgets. Frame skipping, which performs inference every K frames and reuses or interpolates the rest, improves throughput but introduces motion blur and lesion misalignment that degrade temporal consistency. To close this gap, we propose the Lightweight Frame Compensator (LFC), a 77K-parameter plug-and-play module inserted before a frozen segmentation backbone. Operating on a three-frame window, LFC fuses consecutive frames via spatio-temporal atten

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