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Colorectal cancer (CRC) is one of the most common causes of cancer and cancer-related mortality worldwide. Performing colon cancer screening in a timely fashion is the key to early detection. Colonoscopy is the primary modality used to…

Image and Video Processing · Electrical Eng. & Systems 2022-06-22 Nikhil Kumar Tomar , Annie Shergill , Brandon Rieders , Ulas Bagci , Debesh Jha

Colonoscopy analysis, particularly automatic polyp segmentation and detection, is essential for assisting clinical diagnosis and treatment. However, as medical image annotation is labour- and resource-intensive, the scarcity of annotated…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Yuhao Du , Yuncheng Jiang , Shuangyi Tan , Xusheng Wu , Qi Dou , Zhen Li , Guanbin Li , Xiang Wan

Polyps are well-known cancer precursors identified by colonoscopy. However, variability in their size, location, and surface largely affect identification, localisation, and characterisation. Moreover, colonoscopic surveillance and removal…

Accurate polyp segmentation is of great importance for colorectal cancer diagnosis and treatment. However, due to the high cost of producing accurate mask annotations, existing polyp segmentation methods suffer from severe data shortage and…

Computer Vision and Pattern Recognition · Computer Science 2022-12-08 Jun Wei , Yiwen Hu , Guanbin Li , Shuguang Cui , S Kevin Zhou , Zhen Li

Polyp segmentation in colonoscopy is crucial for detecting colorectal cancer. However, it is challenging due to variations in the structure, color, and size of polyps, as well as the lack of clear boundaries with surrounding tissues.…

Computer Vision and Pattern Recognition · Computer Science 2024-12-12 Tapas Kumar Dutta , Snehashis Majhi , Deepak Ranjan Nayak , Debesh Jha

Automatic polyp segmentation is crucial for improving the clinical identification of colorectal cancer (CRC). While Deep Learning (DL) techniques have been extensively researched for this problem, current methods frequently struggle with…

Computer Vision and Pattern Recognition · Computer Science 2026-01-22 Carla Monteiro , Valentina Corbetta , Regina Beets-Tan , Luís F. Teixeira , Wilson Silva

Salient object detection (SOD) in optical remote sensing images (ORSIs) faces numerous challenges, including significant variations in target scales and low contrast between targets and the background. Existing methods based on vision…

Computer Vision and Pattern Recognition · Computer Science 2026-02-05 Mengyu Ren , Yutong Li , Hua Li , Chuhong Wang , Runmin Cong

CNN-based object detection models that strike a balance between performance and speed have been gradually used in polyp detection tasks. Nevertheless, accurately locating polyps within complex colonoscopy video scenes remains challenging…

Computer Vision and Pattern Recognition · Computer Science 2024-10-01 Kaini Wang , Haolin Wang , Guang-Quan Zhou , Yangang Wang , Ling Yang , Yang Chen , Shuo Li

Colorectal cancer is one of fatal cancer worldwide. Colonoscopy is the standard treatment for examination, localization, and removal of colorectal polyps. However, it has been shown that the miss-rate of colorectal polyps during colonoscopy…

Image and Video Processing · Electrical Eng. & Systems 2021-01-12 Nikhil Kumar Tomar

Background and Objective: Colorectal cancer prevention relies on early detection of polyps during colonoscopy. Existing public datasets, such as CVC-ClinicDB and Kvasir-SEG, provide valuable benchmarks but are limited by small sample sizes,…

Image and Video Processing · Electrical Eng. & Systems 2025-11-11 Ridoy Chandra Shil , Ragib Abid , Tasnia Binte Mamun , Samiul Based Shuvo , Masfique Ahmed Bhuiyan , Jahid Ferdous

Superpixel segmentation has seen significant progress benefiting from the deep convolutional networks. The typical approach entails initial division of the image into grids, followed by a learning process that assigns each pixel to adjacent…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Yaxiong Wang , Yunchao Wei , Yujiao Wu , Xueming Qian , Li Zhu , Yi Yang

Colonoscopy is a gold standard procedure but is highly operator-dependent. Efforts have been made to automate the detection and segmentation of polyps, a precancerous precursor, to effectively minimize missed rate. Widely used…

Image and Video Processing · Electrical Eng. & Systems 2021-11-23 Abhishek Srivastava , Sukalpa Chanda , Debesh Jha , Umapada Pal , Sharib Ali

This work introduces EffiSegNet, a novel segmentation framework leveraging transfer learning with a pre-trained Convolutional Neural Network (CNN) classifier as its backbone. Deviating from traditional architectures with a symmetric…

Image and Video Processing · Electrical Eng. & Systems 2024-07-24 Ioannis A. Vezakis , Konstantinos Georgas , Dimitrios Fotiadis , George K. Matsopoulos

Precise segmentation of organs and tumors plays a crucial role in clinical applications. It is a challenging task due to the irregular shapes and various sizes of organs and tumors as well as the significant class imbalance between the…

Image and Video Processing · Electrical Eng. & Systems 2020-07-03 Ziqiang Li , Hong Pan , Yaping Zhu , A. K. Qin

Colorectal cancer is the third most common cancer diagnosed in both men and women in the United States. Most colorectal cancers start as a growth on the inner lining of the colon or rectum, called 'polyp'. Not all polyps are cancerous, but…

Computer Vision and Pattern Recognition · Computer Science 2020-09-09 Krushi Patel , Kaidong Li , Ke Tao , Quan Wang , Ajay Bansal , Amit Rastogi , Guanghui Wang

Most polyp segmentation methods use CNNs as their backbone, leading to two key issues when exchanging information between the encoder and decoder: 1) taking into account the differences in contribution between different-level features and…

Image and Video Processing · Electrical Eng. & Systems 2024-02-20 Bo Dong , Wenhai Wang , Deng-Ping Fan , Jinpeng Li , Huazhu Fu , Ling Shao

Existing video polyp segmentation (VPS) models typically employ convolutional neural networks (CNNs) to extract features. However, due to their limited receptive fields, CNNs can not fully exploit the global temporal and spatial information…

Computer Vision and Pattern Recognition · Computer Science 2024-02-20 Ge-Peng Ji , Yu-Cheng Chou , Deng-Ping Fan , Geng Chen , Huazhu Fu , Debesh Jha , Ling Shao

Vision Transformers (ViTs) have revolutionized medical imaging analysis, showcasing superior efficacy compared to conventional Convolutional Neural Networks (CNNs) in vital tasks such as polyp classification, detection, and segmentation.…

Image and Video Processing · Electrical Eng. & Systems 2024-03-11 Khaled ELKarazle , Valliappan Raman , Caslon Chua , Patrick Then

Prototype learning is extensively used for few-shot segmentation. Typically, a single prototype is obtained from the support feature by averaging the global object information. However, using one prototype to represent all the information…

Computer Vision and Pattern Recognition · Computer Science 2021-05-18 Gen Li , Varun Jampani , Laura Sevilla-Lara , Deqing Sun , Jonghyun Kim , Joongkyu Kim

Automatic melanoma segmentation in dermoscopic images is essential in computer-aided diagnosis of skin cancer. Existing methods may suffer from the hole and shrink problems with limited segmentation performance. To tackle these issues, we…

Computer Vision and Pattern Recognition · Computer Science 2020-01-14 Xiaoqing Guo , Zhen Chen , Yixuan Yuan