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Recognizing various surgical tools, actions and phases from surgery videos is an important problem in computer vision with exciting clinical applications. Existing deep-learning-based methods for this problem either process each surgical…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Haifeng Wang , Hao Xu , Jun Wang , Jian Zhou , Ke Deng

Surgical phase segmentation is central to computer-assisted surgery, yet robust models remain difficult to develop when labeled surgical videos are scarce. We study data-efficient phase segmentation for manual small-incision cataract…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Lincoln Spencer , Song Wang , Chen Chen

Referring video segmentation relies on natural language expressions to identify and segment objects, often emphasizing motion clues. Previous works treat a sentence as a whole and directly perform identification at the video-level, mixing…

Computer Vision and Pattern Recognition · Computer Science 2024-04-05 Shuting He , Henghui Ding

Sketch semantic segmentation is a well-explored and pivotal problem in computer vision involving the assignment of pre-defined part labels to individual strokes. This paper presents ContextSeg - a simple yet highly effective approach to…

Computer Vision and Pattern Recognition · Computer Science 2024-03-27 Jiawei Wang , Changjian Li

Despite recent advances in video segmentation, many opportunities remain to improve it using a variety of low and mid-level visual cues. We propose improvements to the leading streaming graph-based hierarchical video segmentation…

Computer Vision and Pattern Recognition · Computer Science 2014-02-17 Subarna Tripathi , Youngbae Hwang , Serge Belongie , Truong Nguyen

Surgical phase recognition has become a crucial requirement in laparoscopic surgery, enabling various clinical applications like surgical risk forecasting. Current methods typically identify the surgical phase using individual frame-wise…

Computer Vision and Pattern Recognition · Computer Science 2024-09-11 Kaixiang Yang , Qiang Li , Zhiwei Wang

Automatic surgical phase recognition is a core technology for modern operating rooms and online surgical video assessment platforms. Current state-of-the-art methods use both spatial and temporal information to tackle the surgical phase…

Computer Vision and Pattern Recognition · Computer Science 2024-01-23 Bokai Zhang , Jiayuan Meng , Bin Cheng , Dean Biskup , Svetlana Petculescu , Angela Chapman

Global context information is vital in visual understanding problems, especially in pixel-level semantic segmentation. The mainstream methods adopt the self-attention mechanism to model global context information. However, pixels belonging…

Computer Vision and Pattern Recognition · Computer Science 2020-10-21 Yanwen Chong , Congchong Nie , Yulong Tao , Xiaoshu Chen , Shaoming Pan

Learning to predict the long-term future of video frames is notoriously challenging due to inherent ambiguities in the distant future and dramatic amplifications of prediction error through time. Despite the recent advances in the…

Computer Vision and Pattern Recognition · Computer Science 2021-04-15 Wonkwang Lee , Whie Jung , Han Zhang , Ting Chen , Jing Yu Koh , Thomas Huang , Hyungsuk Yoon , Honglak Lee , Seunghoon Hong

Semantic segmentation of motion capture sequences plays a key part in many data-driven motion synthesis frameworks. It is a preprocessing step in which long recordings of motion capture sequences are partitioned into smaller segments.…

Computer Vision and Pattern Recognition · Computer Science 2018-07-17 Noshaba Cheema , Somayeh Hosseini , Janis Sprenger , Erik Herrmann , Han Du , Klaus Fischer , Philipp Slusallek

We propose an approach to instance-level image segmentation that is built on top of category-level segmentation. Specifically, for each pixel in a semantic category mask, its corresponding instance bounding box is predicted using a deep…

Computer Vision and Pattern Recognition · Computer Science 2016-05-24 Zifeng Wu , Chunhua Shen , Anton van den Hengel

Purpose: Accurate identification of hepatocystic anatomy is critical to preventing surgical complications during laparoscopic cholecystectomy. Deep learning models often struggle with occlusions, long-range dependencies, and capturing the…

Computer Vision and Pattern Recognition · Computer Science 2025-11-21 Yihan Li , Nikhil Churamani , Maria Robu , Imanol Luengo , Danail Stoyanov

A critical complication after cataract surgery is the dislocation of the lens implant leading to vision deterioration and eye trauma. In order to reduce the risk of this complication, it is vital to discover the risk factors during the…

Image and Video Processing · Electrical Eng. & Systems 2021-07-05 Negin Ghamsarian , Mario Taschwer , Doris Putzgruber-Adamitsch , Stephanie Sarny , Yosuf El-Shabrawi , Klaus Schoeffmann

The accurate reconstruction of surgical scenes from surgical videos is critical for various applications, including intraoperative navigation and image-guided robotic surgery automation. However, previous approaches, mainly relying on depth…

Computer Vision and Pattern Recognition · Computer Science 2024-02-07 Ange Lou , Yamin Li , Xing Yao , Yike Zhang , Jack Noble

Understanding surgical tasks represents an important challenge for autonomy in surgical robotic systems. To achieve this, we propose an online task segmentation framework that uses hierarchical transition state clustering to activate…

Robotics · Computer Science 2024-06-17 Yutaro Yamada , Jacinto Colan , Ana Davila , Yasuhisa Hasegawa

Quality control of structures segmentation in volumetric medical images is important for identifying segmentation errors in clinical practice and for facilitating model development. This paper introduces SegQC, a novel framework for…

Image and Video Processing · Electrical Eng. & Systems 2024-11-13 Bella Specktor-Fadida , Liat Ben-Sira , Dafna Ben-Bashat , Leo Joskowicz

Reliable classification and detection of certain medical conditions, in images, with state-of-the-art semantic segmentation networks, require vast amounts of pixel-wise annotation. However, the public availability of such datasets is…

Computer Vision and Pattern Recognition · Computer Science 2023-03-17 Erik Ostrowski , Bharath Srinivas Prabakaran , Muhammad Shafique

Unsupervised semantic segmentation aims to discover groupings within and across images that capture object and view-invariance of a category without external supervision. Grouping naturally has levels of granularity, creating ambiguity in…

Computer Vision and Pattern Recognition · Computer Science 2022-04-26 Tsung-Wei Ke , Jyh-Jing Hwang , Yunhui Guo , Xudong Wang , Stella X. Yu

Deep neural networks, especially transformer-based architectures, have achieved remarkable success in semantic segmentation for environmental perception. However, existing models process video frames independently, thus failing to leverage…

Computer Vision and Pattern Recognition · Computer Science 2026-03-23 Serin Varghese , Kevin Ross , Fabian Hueger , Kira Maag

Emotion recognition in videos is a pivotal task in affective computing, where identifying subtle psychological states such as Ambivalence and Hesitancy holds significant value for behavioral intervention and digital health. Ambivalence and…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Liang Tang , Hongda Li , Jiayu Zhang , Long Chen , Shuxian Li , Siqi Pei , Tiaonan Duan , Yuhao Cheng
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