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Spatially dense self-supervised learning is a rapidly growing problem domain with promising applications for unsupervised segmentation and pretraining for dense downstream tasks. Despite the abundance of temporal data in the form of videos,…

Computer Vision and Pattern Recognition · Computer Science 2023-08-24 Mohammadreza Salehi , Efstratios Gavves , Cees G. M. Snoek , Yuki M. Asano

Recent self-supervised advances in medical computer vision exploit global and local anatomical self-similarity for pretraining prior to downstream tasks such as segmentation. However, current methods assume i.i.d. image acquisition, which…

Computer Vision and Pattern Recognition · Computer Science 2023-12-13 Mengwei Ren , Neel Dey , Martin A. Styner , Kelly Botteron , Guido Gerig

Segmenting a structural magnetic resonance imaging (MRI) scan is an important pre-processing step for analytic procedures and subsequent inferences about longitudinal tissue changes. Manual segmentation defines the current gold standard in…

Computer Vision and Pattern Recognition · Computer Science 2017-06-07 Alex Fedorov , Jeremy Johnson , Eswar Damaraju , Alexei Ozerin , Vince Calhoun , Sergey Plis

Decoding human activity accurately from wearable sensors can aid in applications related to healthcare and context awareness. The present approaches in this domain use recurrent and/or convolutional models to capture the spatio-temporal…

Human-Computer Interaction · Computer Science 2020-12-21 Satya P. Singh , Aimé Lay-Ekuakille , Deepak Gangwar , Madan Kumar Sharma , Sukrit Gupta

Many studies focus on improving pretraining or developing new backbones in text-video retrieval. However, existing methods may suffer from the learning and inference bias issue, as recent research suggests in other text-video-related tasks.…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Burak Satar , Hongyuan Zhu , Hanwang Zhang , Joo Hwee Lim

Multi-frame human pose estimation in complicated situations is challenging. Although state-of-the-art human joints detectors have demonstrated remarkable results for static images, their performances come short when we apply these models to…

Computer Vision and Pattern Recognition · Computer Science 2021-03-22 Zhenguang Liu , Haoming Chen , Runyang Feng , Shuang Wu , Shouling Ji , Bailin Yang , Xun Wang

Reconstructing a dynamic target moving over a large area is challenging. Standard approaches for dynamic object reconstruction require dense coverage in both the viewing space and the temporal dimension, typically relying on multi-view…

Computer Vision and Pattern Recognition · Computer Science 2026-05-07 Jun-Jee Chao , Volkan Isler

Accurate 3D reconstruction of dynamic surgical scenes from endoscopic video is essential for robotic-assisted surgery. While recent 3D Gaussian Splatting methods have shown promise in achieving high-quality reconstructions with fast…

Computer Vision and Pattern Recognition · Computer Science 2024-10-15 Jialei Chen , Xin Zhang , Mobarakol Islam , Francisco Vasconcelos , Danail Stoyanov , Daniel S. Elson , Baoru Huang

The goal of this study was to develop new reliable open surgery suturing simulation system for training medical students in situation where resources are limited or in the domestic setup. Namely, we developed an algorithm for tools and…

Computer Vision and Pattern Recognition · Computer Science 2022-01-11 Adam Goldbraikh , Anne-Lise D'Angelo , Carla M. Pugh , Shlomi Laufer

Nowadays, hand gesture recognition has become an alternative for human-machine interaction. It has covered a large area of applications like 3D game technology, sign language interpreting, VR (virtual reality) environment, and robotics. But…

Computer Vision and Pattern Recognition · Computer Science 2022-02-28 Abir Sen , Tapas Kumar Mishra , Ratnakar Dash

With the success of deep learning in classifying short trimmed videos, more attention has been focused on temporally segmenting and classifying activities in long untrimmed videos. State-of-the-art approaches for action segmentation utilize…

Computer Vision and Pattern Recognition · Computer Science 2020-09-04 Shijie Li , Yazan Abu Farha , Yun Liu , Ming-Ming Cheng , Juergen Gall

Surgical image segmentation is essential for robot-assisted surgery and intraoperative guidance. However, existing methods are constrained to predefined categories, produce one-shot predictions without adaptive refinement, and lack…

Computer Vision and Pattern Recognition · Computer Science 2026-02-11 Ange Lou , Yamin Li , Qi Chang , Nan Xi , Luyuan Xie , Zichao Li , Tianyu Luan

Surgical video segmentation is a critical task in computer-assisted surgery and is vital for enhancing surgical quality and patient outcomes. Recently, the Segment Anything Model 2 (SAM2) framework has shown superior advancements in image…

Computer Vision and Pattern Recognition · Computer Science 2025-03-12 Haofeng Liu , Erli Zhang , Junde Wu , Mingxuan Hong , Yueming Jin

The main challenge of dynamic texture synthesis lies in how to maintain spatial and temporal consistency in synthesized videos. The major drawback of existing dynamic texture synthesis models comes from poor treatment of the long-range…

Computer Vision and Pattern Recognition · Computer Science 2021-04-15 Kaitai Zhang , Bin Wang , Hong-Shuo Chen , Ye Wang , Shiyu Mou , C. -C. Jay Kuo

Effective processing of video input is essential for the recognition of temporally varying events such as human actions. Motivated by the often distinctive temporal characteristics of actions in either horizontal or vertical direction, we…

Computer Vision and Pattern Recognition · Computer Science 2020-06-24 Alexandros Stergiou , Ronald Poppe

Action prediction is to recognize the class label of an ongoing activity when only a part of it is observed. In this paper, we focus on online action prediction in streaming 3D skeleton sequences. A dilated convolutional network is…

Computer Vision and Pattern Recognition · Computer Science 2019-04-04 Jun Liu , Amir Shahroudy , Gang Wang , Ling-Yu Duan , Alex C. Kot

Background Analyzing kinematic and video data can help identify potentially erroneous motions that lead to sub-optimal surgeon performance and safety-critical events in robot-assisted surgery. Methods We develop a rubric for identifying…

Robotics · Computer Science 2023-01-20 Kay Hutchinson , Zongyu Li , Leigh A. Cantrell , Noah S. Schenkman , Homa Alemzadeh

Hand gesture-based human-computer interaction is an important problem that is well explored using color camera data. In this work we proposed a hand gesture detection system using thermal images. Our system is capable of handling multiple…

Computer Vision and Pattern Recognition · Computer Science 2023-03-07 James Ballow , Soumyabrata Dey

Deep ConvNets have been shown to be effective for the task of human pose estimation from single images. However, several challenging issues arise in the video-based case such as self-occlusion, motion blur, and uncommon poses with few or no…

Computer Vision and Pattern Recognition · Computer Science 2017-04-03 Jie Song , Limin Wang , Luc Van Gool , Otmar Hilliges

Skeleton based recognition systems are gaining popularity and machine learning models focusing on points or joints in a skeleton have proved to be computationally effective and application in many areas like Robotics. It is easy to track…

Computer Vision and Pattern Recognition · Computer Science 2022-07-04 Neha Baranwal , Varun Sharma
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