Robust Real-Time Endoscopic Stereo Matching under Fuzzy Tissue Boundaries

Fuente: arXiv
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Auteurs principaux: Ding, Yang, Han, Can, Du, Sijia, Wang, Yaqi, Qian, Dahong
Format: Preprint
Publié: 2025
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author Ding, Yang
Han, Can
Du, Sijia
Wang, Yaqi
Qian, Dahong
author_facet Ding, Yang
Han, Can
Du, Sijia
Wang, Yaqi
Qian, Dahong
contents Real-time acquisition of accurate scene depth is essential for automated robotic minimally invasive surgery. Stereo matching with binocular endoscopy can provide this depth information. However, existing stereo matching methods, designed primarily for natural images, often struggle with endoscopic images due to fuzzy tissue boundaries and typically fail to meet real-time requirements for high-resolution endoscopic image inputs. To address these challenges, we propose \textbf{RRESM}, a real-time stereo matching method tailored for endoscopic images. Our approach integrates a 3D Mamba Coordinate Attention module that enhances cost aggregation through position-sensitive attention maps and long-range spatial dependency modeling via the Mamba block, generating a robust cost volume without substantial computational overhead. Additionally, we introduce a High-Frequency Disparity Optimization module that refines disparity predictions near tissue boundaries by amplifying high-frequency details in the wavelet domain. Evaluations on the SCARED and SERV-CT datasets demonstrate state-of-the-art matching accuracy with a real-time inference speed of 42 FPS. The code is available at https://github.com/Sonne-Ding/RRESM.
format Preprint
id arxiv_https___arxiv_org_abs_2503_00731
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Robust Real-Time Endoscopic Stereo Matching under Fuzzy Tissue Boundaries
Ding, Yang
Han, Can
Du, Sijia
Wang, Yaqi
Qian, Dahong
Image and Video Processing
Computer Vision and Pattern Recognition
Real-time acquisition of accurate scene depth is essential for automated robotic minimally invasive surgery. Stereo matching with binocular endoscopy can provide this depth information. However, existing stereo matching methods, designed primarily for natural images, often struggle with endoscopic images due to fuzzy tissue boundaries and typically fail to meet real-time requirements for high-resolution endoscopic image inputs. To address these challenges, we propose \textbf{RRESM}, a real-time stereo matching method tailored for endoscopic images. Our approach integrates a 3D Mamba Coordinate Attention module that enhances cost aggregation through position-sensitive attention maps and long-range spatial dependency modeling via the Mamba block, generating a robust cost volume without substantial computational overhead. Additionally, we introduce a High-Frequency Disparity Optimization module that refines disparity predictions near tissue boundaries by amplifying high-frequency details in the wavelet domain. Evaluations on the SCARED and SERV-CT datasets demonstrate state-of-the-art matching accuracy with a real-time inference speed of 42 FPS. The code is available at https://github.com/Sonne-Ding/RRESM.
title Robust Real-Time Endoscopic Stereo Matching under Fuzzy Tissue Boundaries
topic Image and Video Processing
Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2503.00731