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相关论文: ToDER: Towards Colonoscopy Depth Estimation and Re…

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Estimating 3D geometry from monocular colonoscopy images is challenging due to non-Lambertian surfaces, moving light sources, and large textureless regions. While recent 3D geometric foundation models eliminate the need for multi-stage…

图像与视频处理 · 电气工程与系统科学 2025-12-01 Zhiyi Jiang , Yifu Wang , Xuelian Cheng , Zongyuan Ge

Colonoscopy is the choice procedure to diagnose colon and rectum cancer, from early detection of small precancerous lesions (polyps), to confirmation of malign masses. However, the high variability of the organ appearance and the complex…

计算机视觉与模式识别 · 计算机科学 2024-05-07 Josué Ruano , Martín Gómez , Eduardo Romero , Antoine Manzanera

Monocular depth estimation (MDE) for colonoscopy is hampered by the domain gap between simulated and real-world images. Existing image-to-image translation methods, which use depth as a posterior constraint, often produce structural…

计算机视觉与模式识别 · 计算机科学 2026-02-26 Juan Yang , Yuyan Zhang , Han Jia , Bing Hu , Wanzhong Song

Monocular depth estimation in colonoscopy video aims to overcome the unusual lighting properties of the colonoscopic environment. One of the major challenges in this area is the domain gap between annotated but unrealistic synthetic data…

计算机视觉与模式识别 · 计算机科学 2024-08-20 Shuxian Wang , Akshay Paruchuri , Zhaoxi Zhang , Sarah McGill , Roni Sengupta

Colonoscopy is a common and practical method for detecting and treating polyps. Segmenting polyps from colonoscopy image is useful for diagnosis and surgery progress. Nevertheless, achieving excellent segmentation performance is still…

计算机视觉与模式识别 · 计算机科学 2024-05-14 Quang Vinh Nguyen , Van Thong Huynh , Soo-Hyung Kim

We propose a topological mapping and localization system able to operate on real human colonoscopies, despite significant shape and illumination changes. The map is a graph where each node codes a colon location by a set of real images,…

计算机视觉与模式识别 · 计算机科学 2024-07-11 Javier Morlana , Juan D. Tardós , J. M. M. Montiel

Three-dimensional (3D) scene understanding in colonoscopy presents significant challenges that necessitate automated methods for accurate depth estimation. However, existing depth estimation models for endoscopy struggle with temporal…

计算机视觉与模式识别 · 计算机科学 2025-09-18 Romain Hardy , Tyler Berzin , Pranav Rajpurkar

One of the key elements of reconstructing a 3D mesh from a monocular video is generating every frame's depth map. However, in the application of colonoscopy video reconstruction, producing good-quality depth estimation is challenging.…

图像与视频处理 · 电气工程与系统科学 2021-11-23 Yubo Zhang , Jan-Michael Frahm , Samuel Ehrenstein , Sarah K. McGill , Julian G. Rosenman , Shuxian Wang , Stephen M. Pizer

Colorectal cancer remains one of the deadliest cancers in the world. In recent years computer-aided methods have aimed to enhance cancer screening and improve the quality and availability of colonoscopies by automatizing sub-tasks. One such…

计算机视觉与模式识别 · 计算机科学 2023-10-04 Anita Rau , Binod Bhattarai , Lourdes Agapito , Danail Stoyanov

Colorectal cancer is the fourth leading cause of cancer deaths worldwide and the second leading cause in the United States. The risk of colorectal cancer can be mitigated by the identification and removal of premalignant lesions through…

计算机视觉与模式识别 · 计算机科学 2017-11-29 Faisal Mahmood , Nicholas J. Durr

Computer tomographic colonography, combined with computer-aided detection, is a promising emerging technique for colonic polyp analysis. We present a complete pipeline for polyp detection, starting with a simple colon segmentation technique…

计算机视觉与模式识别 · 计算机科学 2012-10-01 Marcelo Fiori , Pablo Musé , Guillermo Sapiro

Automated colonoscopy reporting holds great potential for enhancing quality control and improving cost-effectiveness of colonoscopy procedures. A major challenge lies in the automated identification, tracking, and re-association (ReID) of…

计算机视觉与模式识别 · 计算机科学 2025-02-17 Luca Parolari , Andrea Cherubini , Lamberto Ballan , Carlo Biffi

Purpose: Colorectal cancer (CRC) is the second most common cause of cancer mortality worldwide. Colonoscopy is a widely used technique for colon screening and polyp lesions diagnosis. Nevertheless, manual screening using colonoscopy suffers…

计算机视觉与模式识别 · 计算机科学 2021-05-25 Zhiqiang Shen , Chaonan Lin , Shaohua Zheng

Colorectal cancer is one of the most common cancers in the world. While colonoscopy is an effective screening technique, navigating an endoscope through the colon to detect polyps is challenging. A 3D map of the observed surfaces could…

Accurate detection of polyps is of critical importance for the early and intermediate stages of colorectal cancer diagnosis. Compared to static images, dynamic colonoscopy videos provide more comprehensive visual information, which can…

计算机视觉与模式识别 · 计算机科学 2025-08-06 Zilin Chen , Shengnan Lu

Objective: Depth estimation is crucial for endoscopic navigation and manipulation, but obtaining ground-truth depth maps in real clinical scenarios, such as the colon, is challenging. This study aims to develop a robust framework that…

计算机视觉与模式识别 · 计算机科学 2024-09-24 Sijia Du , Chengfeng Zhou , Suncheng Xiang , Jianwei Xu , Dahong Qian

Colonoscopy is the most common procedure for early detection and removal of polyps, a critical component of colorectal cancer prevention. Insufficient visual coverage of the colon surface during the procedure often results in missed polyps.…

计算机视觉与模式识别 · 计算机科学 2022-10-20 Emmanuelle Muhlethaler , Erez Posner , Moshe Bouhnik

Colonoscopy is an effective technique for detecting colorectal polyps, which are highly related to colorectal cancer. In clinical practice, segmenting polyps from colonoscopy images is of great importance since it provides valuable…

图像与视频处理 · 电气工程与系统科学 2020-07-06 Deng-Ping Fan , Ge-Peng Ji , Tao Zhou , Geng Chen , Huazhu Fu , Jianbing Shen , Ling Shao

Colonoscopy is the most widely used medical technique for preventing Colorectal Cancer, by detecting and removing polyps before they become malignant. Recent studies show that around one quarter of the existing polyps are routinely missed.…

计算机视觉与模式识别 · 计算机科学 2024-03-14 G. Leifman , I. Kligvasser , R. Goldenberg , M. Elad , E. Rivlin

Desktop-based virtual colonoscopy has been proven to be an asset in the identification of colon anomalies. The process is accurate, although time-consuming. The use of immersive interfaces for virtual colonoscopy is incipient and not yet…

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