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Feature selection is essential for effective visual recognition. We propose an efficient joint classifier learning and feature selection method that discovers sparse, compact representations of input features from a vast sea of candidates,…

Computer Vision and Pattern Recognition · Computer Science 2015-12-03 Marius Leordeanu , Alexandra Radu , Shumeet Baluja , Rahul Sukthankar

Amodal perception requires inferring the full shape of an object that is partially occluded. This task is particularly challenging on two levels: (1) it requires more information than what is contained in the instant retina or imaging…

Computer Vision and Pattern Recognition · Computer Science 2022-10-25 Jian Yao , Yuxin Hong , Chiyu Wang , Tianjun Xiao , Tong He , Francesco Locatello , David Wipf , Yanwei Fu , Zheng Zhang

Contemporary Video Object Segmentation (VOS) approaches typically consist stages of feature extraction, matching, memory management, and multiple objects aggregation. Recent advanced models either employ a discrete modeling for these…

Computer Vision and Pattern Recognition · Computer Science 2024-03-14 Wanyun Li , Pinxue Guo , Xinyu Zhou , Lingyi Hong , Yangji He , Xiangyu Zheng , Wei Zhang , Wenqiang Zhang

From CNN, RNN, to ViT, we have witnessed remarkable advancements in video prediction, incorporating auxiliary inputs, elaborate neural architectures, and sophisticated training strategies. We admire these progresses but are confused about…

Computer Vision and Pattern Recognition · Computer Science 2022-06-13 Zhangyang Gao , Cheng Tan , Lirong Wu , Stan Z. Li

Annotating videos with object segmentation masks typically involves a two stage procedure of drawing polygons per object instance for all the frames and then linking them through time. While simple, this is a very tedious, time consuming…

Computer Vision and Pattern Recognition · Computer Science 2021-01-19 Namdar Homayounfar , Justin Liang , Wei-Chiu Ma , Raquel Urtasun

In modern video coding standards, block-based inter prediction is widely adopted, which brings high compression efficiency. However, in natural videos, there are usually multiple moving objects of arbitrary shapes, resulting in complex…

Image and Video Processing · Electrical Eng. & Systems 2024-09-13 Zhuoyuan Li , Zikun Yuan , Li Li , Dong Liu , Xiaohu Tang , Feng Wu

Self-supervised learning (SSL) holds promise in leveraging large amounts of unlabeled data. However, the success of popular SSL methods has limited on single-centric-object images like those in ImageNet and ignores the correlation among the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-15 Zhaowen Li , Yousong Zhu , Fan Yang , Wei Li , Chaoyang Zhao , Yingying Chen , Zhiyang Chen , Jiahao Xie , Liwei Wu , Rui Zhao , Ming Tang , Jinqiao Wang

Training deep neural networks to estimate the viewpoint of objects requires large labeled training datasets. However, manually labeling viewpoints is notoriously hard, error-prone, and time-consuming. On the other hand, it is relatively…

Computer Vision and Pattern Recognition · Computer Science 2020-04-07 Siva Karthik Mustikovela , Varun Jampani , Shalini De Mello , Sifei Liu , Umar Iqbal , Carsten Rother , Jan Kautz

For semantic segmentation, most existing real-time deep models trained with each frame independently may produce inconsistent results for a video sequence. Advanced methods take into considerations the correlations in the video sequence,…

Computer Vision and Pattern Recognition · Computer Science 2020-07-20 Yifan Liu , Chunhua Shen , Changqian Yu , Jingdong Wang

This paper addresses the problem of self-supervised video representation learning from a new perspective -- by video pace prediction. It stems from the observation that human visual system is sensitive to video pace, e.g., slow motion, a…

Computer Vision and Pattern Recognition · Computer Science 2020-09-07 Jiangliu Wang , Jianbo Jiao , Yun-Hui Liu

Recent action recognition models have achieved impressive results by integrating objects, their locations and interactions. However, obtaining dense structured annotations for each frame is tedious and time-consuming, making these methods…

Computer Vision and Pattern Recognition · Computer Science 2022-11-30 Elad Ben-Avraham , Roei Herzig , Karttikeya Mangalam , Amir Bar , Anna Rohrbach , Leonid Karlinsky , Trevor Darrell , Amir Globerson

Frame-by-frame annotation of bounding boxes by clinical experts is often required to train fully supervised object detection models on medical video data. We propose a method for improving object detection in medical videos through weak…

Video Panoptic Segmentation (VPS) aims at assigning a class label to each pixel, uniquely segmenting and identifying all object instances consistently across all frames. Classic solutions usually decompose the VPS task into several…

Computer Vision and Pattern Recognition · Computer Science 2021-12-17 Yi Zhou , Hui Zhang , Hana Lee , Shuyang Sun , Pingjun Li , Yangguang Zhu , ByungIn Yoo , Xiaojuan Qi , Jae-Joon Han

A central challenge of video prediction lies where the system has to reason the objects' future motions from image frames while simultaneously maintaining the consistency of their appearances across frames. This work introduces an…

Computer Vision and Pattern Recognition · Computer Science 2023-09-01 Yiqi Zhong , Luming Liang , Ilya Zharkov , Ulrich Neumann

The ability to quickly annotate medical imaging data plays a critical role in training deep learning frameworks for segmentation. Doing so for image volumes or video sequences is even more pressing as annotating these is particularly…

Computer Vision and Pattern Recognition · Computer Science 2021-07-20 Laurent Lejeune , Raphael Sznitman

The paper presents a new approach to multiview video coding using Screen Content Coding. It is assumed that for a time instant the frames corresponding to all views are packed into a single frame, i.e. the frame-compatible approach to…

Multimedia · Computer Science 2021-06-28 Jarosław Samelak , Marek Domański

Radar sensors provide reliable perception across adverse weather, lighting, and long-range conditions, yet existing machine learning approaches remain fragmented and task-specific, with each downstream task employing distinct architectures…

Computer Vision and Pattern Recognition · Computer Science 2026-03-16 Pushkal Mishra , Kshitiz Bansal , Dinesh Bharadia

Compared with still image object detection, video object detection (VOD) needs to particularly concern the high across-frame variation in object appearance, and the diverse deterioration in some frames. In principle, the detection in a…

Computer Vision and Pattern Recognition · Computer Science 2024-07-30 Yuheng Shi , Tong Zhang , Xiaojie Guo

This paper addresses the task of segmenting moving objects in unconstrained videos. We introduce a novel two-stream neural network with an explicit memory module to achieve this. The two streams of the network encode spatial and temporal…

Computer Vision and Pattern Recognition · Computer Science 2017-07-13 Pavel Tokmakov , Karteek Alahari , Cordelia Schmid

Unsupervised video object segmentation aims to segment a target object in the video without a ground truth mask in the initial frame. This challenging task requires extracting features for the most salient common objects within a video…

Computer Vision and Pattern Recognition · Computer Science 2022-09-09 Minhyeok Lee , Suhwan Cho , Seunghoon Lee , Chaewon Park , Sangyoun Lee