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We present a novel embedding approach for video instance segmentation. Our method learns a spatio-temporal embedding integrating cues from appearance, motion, and geometry; a 3D causal convolutional network models motion, and a monocular…

Computer Vision and Pattern Recognition · Computer Science 2019-12-20 Anthony Hu , Alex Kendall , Roberto Cipolla

Video Instance Segmentation (VIS) aims to simultaneously classify, segment, and track multiple object instances in videos. Recent clip-level VIS takes a short video clip as input each time showing stronger performance than frame-level VIS…

Computer Vision and Pattern Recognition · Computer Science 2022-03-04 Jialian Wu , Sudhir Yarram , Hui Liang , Tian Lan , Junsong Yuan , Jayan Eledath , Gerard Medioni

Most existing video tasks related to "human" focus on the segmentation of salient humans, ignoring the unspecified others in the video. Few studies have focused on segmenting and tracking all humans in a complex video, including pedestrians…

Computer Vision and Pattern Recognition · Computer Science 2021-08-17 Ran Yu , Chenyu Tian , Weihao Xia , Xinyuan Zhao , Haoqian Wang , Yujiu Yang

Are we ready to segment consumer stereo videos? The amount of this data type is rapidly increasing and encompasses rich information of appearance, motion and depth cues. However, the segmentation of such data is still largely unexplored.…

Computer Vision and Pattern Recognition · Computer Science 2016-09-08 Wei-Chen Chiu , Fabio Galasso , Mario Fritz

We introduce a method for automated temporal segmentation of human motion data into distinct actions and compositing motion primitives based on self-similar structures in the motion sequence. We use neighbourhood graphs for the partitioning…

Computer Vision and Pattern Recognition · Computer Science 2021-12-07 Björn Krüger , Anna Vögele , Tobias Willig , Angela Yao , Reinhard Klein , Andreas Weber

The goal of this paper is to discover, segment, and track independently moving objects in complex visual scenes. Previous approaches have explored the use of optical flow for motion segmentation, leading to imperfect predictions due to…

Computer Vision and Pattern Recognition · Computer Science 2024-08-20 Junyu Xie , Weidi Xie , Andrew Zisserman

Thalamic alterations are relevant to many neurological disorders including Alzheimer's disease, Parkinson's disease and multiple sclerosis. Routine interventions to improve symptom severity in movement disorders, for example, often consist…

Computer Vision and Pattern Recognition · Computer Science 2018-07-31 Veronica Corona , Jan Lellmann , Peter Nestor , Carola-Bibiane Schoenlieb , Julio Acosta-Cabronero

Inspired by recent advances of deep learning in instance segmentation and object tracking, we introduce video object segmentation problem as a concept of guided instance segmentation. Our model proceeds on a per-frame basis, guided by the…

Computer Vision and Pattern Recognition · Computer Science 2019-02-05 Anna Khoreva , Federico Perazzi , Rodrigo Benenson , Bernt Schiele , Alexander Sorkine-Hornung

Image segmentation for video analysis plays an essential role in different research fields such as smart city, healthcare, computer vision and geoscience, and remote sensing applications. In this regard, a significant effort has been…

Computer Vision and Pattern Recognition · Computer Science 2021-11-22 Omar Elharrouss , Somaya Al-Maadeed , Nandhini Subramanian , Najmath Ottakath , Noor Almaadeed , Yassine Himeur

While current skeleton action recognition models demonstrate impressive performance on large-scale datasets, their adaptation to new application scenarios remains challenging. These challenges are particularly pronounced when facing new…

Computer Vision and Pattern Recognition · Computer Science 2026-01-09 Zongye Zhang , Wenrui Cai , Qingjie Liu , Yunhong Wang

Segmenting humans in 3D indoor scenes has become increasingly important with the rise of human-centered robotics and AR/VR applications. To this end, we propose the task of joint 3D human semantic segmentation, instance segmentation and…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Ayça Takmaz , Jonas Schult , Irem Kaftan , Mertcan Akçay , Bastian Leibe , Robert Sumner , Francis Engelmann , Siyu Tang

Videos are prominent learning materials to prepare surgical trainees before they enter the operating room (OR). In this work, we explore techniques to enrich the video-based surgery learning experience. We propose Surgment, a system that…

Human-Computer Interaction · Computer Science 2024-06-27 Jingying Wang , Haoran Tang , Taylor Kantor , Tandis Soltani , Vitaliy Popov , Xu Wang

A common problem with segmentation of medical images using neural networks is the difficulty to obtain a significant number of pixel-level annotated data for training. To address this issue, we proposed a semi-supervised segmentation…

Computer Vision and Pattern Recognition · Computer Science 2023-02-23 Ange Lou , Kareem Tawfik , Xing Yao , Ziteng Liu , Jack Noble

Human gesture recognition has assumed a capital role in industrial applications, such as Human-Machine Interaction. We propose an approach for segmentation and classification of dynamic gestures based on a set of handcrafted features, which…

Computer Vision and Pattern Recognition · Computer Science 2020-08-27 André Brás , Miguel Simão , Pedro Neto

Accurate segmentation of lesions plays a critical role in medical image analysis and diagnosis. Traditional segmentation approaches that rely solely on visual features often struggle with the inherent uncertainty in lesion distribution and…

Image and Video Processing · Electrical Eng. & Systems 2025-04-03 Dandan Shan , Zihan Li , Yunxiang Li , Qingde Li , Jie Tian , Qingqi Hong

The discrimination of instance embeddings plays a vital role in associating instances across time for online video instance segmentation (VIS). Instance embedding learning is directly supervised by the contrastive loss computed upon the…

Computer Vision and Pattern Recognition · Computer Science 2023-07-25 Kaining Ying , Qing Zhong , Weian Mao , Zhenhua Wang , Hao Chen , Lin Yuanbo Wu , Yifan Liu , Chengxiang Fan , Yunzhi Zhuge , Chunhua Shen

Recent advances in skeleton-based person re-identification (re-ID) obtain impressive performance via either hand-crafted skeleton descriptors or skeleton representation learning with deep learning paradigms. However, they typically require…

Computer Vision and Pattern Recognition · Computer Science 2022-06-22 Haocong Rao , Chunyan Miao

The raising availability of 3D cameras and dramatic improvement of computer vision algorithms in the recent decade, accelerated the research of automatic movement assessment solutions. Such solutions can be implemented at home, using…

Computer Vision and Pattern Recognition · Computer Science 2020-07-31 Tal Hakim

Interactive segmentation entails a human marking an image to guide how a model either creates or edits a segmentation. Our work addresses limitations of existing methods: they either only support one gesture type for marking an image (e.g.,…

Computer Vision and Pattern Recognition · Computer Science 2023-12-07 Josh Myers-Dean , Yifei Fan , Brian Price , Wilson Chan , Danna Gurari

Real-world visual recognition requires handling the extreme sample imbalance in large-scale long-tailed data. We propose a "divide&conquer" strategy for the challenging LVIS task: divide the whole data into balanced parts and then apply…

Computer Vision and Pattern Recognition · Computer Science 2020-04-06 Xinting Hu , Yi Jiang , Kaihua Tang , Jingyuan Chen , Chunyan Miao , Hanwang Zhang