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Personal robots and driverless cars need to be able to operate in novel environments and thus quickly and efficiently learn to recognise new object classes. We address this problem by considering the task of video object segmentation.…

Computer Vision and Pattern Recognition · Computer Science 2020-08-18 Harkirat Singh Behl , Mohammad Najafi , Anurag Arnab , Philip H. S. Torr

As a very common type of video, face videos often appear in movies, talk shows, live broadcasts, and other scenes. Real-world online videos are often plagued by degradations such as blurring and quantization noise, due to the high…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Yutong Wang , Jiajie Teng , Jiajiong Cao , Yuming Li , Chenguang Ma , Hongteng Xu , Dixin Luo

Many of the recent successful methods for video object segmentation (VOS) are overly complicated, heavily rely on fine-tuning on the first frame, and/or are slow, and are hence of limited practical use. In this work, we propose FEELVOS as a…

Computer Vision and Pattern Recognition · Computer Science 2019-04-09 Paul Voigtlaender , Yuning Chai , Florian Schroff , Hartwig Adam , Bastian Leibe , Liang-Chieh Chen

Matching-based networks have achieved state-of-the-art performance for video object segmentation (VOS) tasks by storing every-k frames in an external memory bank for future inference. Storing the intermediate frames' predictions provides…

Computer Vision and Pattern Recognition · Computer Science 2022-04-15 Ali Pourganjalikhan , Charalambos Poullis

Exploring dense matching between the current frame and past frames for long-range context modeling, memory-based methods have demonstrated impressive results in video object segmentation (VOS) recently. Nevertheless, due to the lack of…

Computer Vision and Pattern Recognition · Computer Science 2022-12-14 Junke Wang , Dongdong Chen , Zuxuan Wu , Chong Luo , Chuanxin Tang , Xiyang Dai , Yucheng Zhao , Yujia Xie , Lu Yuan , Yu-Gang Jiang

This paper introduces an online model for object detection in videos designed to run in real-time on low-powered mobile and embedded devices. Our approach combines fast single-image object detection with convolutional long short term memory…

Computer Vision and Pattern Recognition · Computer Science 2018-03-30 Mason Liu , Menglong Zhu

Spatio-temporal contexts are crucial in understanding human actions in videos. Recent state-of-the-art Convolutional Neural Network (ConvNet) based action recognition systems frequently involve 3D spatio-temporal ConvNet filters, chunking…

Computer Vision and Pattern Recognition · Computer Science 2018-05-09 Yunfeng Wang , Wengang Zhou , Qilin Zhang , Xiaotian Zhu , Houqiang Li

High-performance object detection relies on expensive convolutional networks to compute features, often leading to significant challenges in applications, e.g. those that require detecting objects from video streams in real time. The key to…

Computer Vision and Pattern Recognition · Computer Science 2018-04-17 Kai Chen , Jiaqi Wang , Shuo Yang , Xingcheng Zhang , Yuanjun Xiong , Chen Change Loy , Dahua Lin

Pixel-level Video Understanding requires effectively integrating three-dimensional data in both spatial and temporal dimensions to learn accurate and stable semantic information from continuous frames. However, existing advanced models on…

Computer Vision and Pattern Recognition · Computer Science 2024-06-10 Chen Liang , Qiang Guo , Chongkai Yu , Chengjing Wu , Ting Liu , Luoqi Liu

Semi-supervised video object segmentation (VOS) aims to track the designated objects present in the initial frame of a video at the pixel level. To fully exploit the appearance information of an object, pixel-level feature matching is…

Computer Vision and Pattern Recognition · Computer Science 2021-11-15 Suhwan Cho , Heansung Lee , Minjung Kim , Sungjun Jang , Sangyoun Lee

In recent years, vision transformers (ViTs) have emerged as powerful and promising techniques for computer vision tasks such as image classification, object detection, and segmentation. Unlike convolutional neural networks (CNNs), which…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 Shaibal Saha , Lanyu Xu

Convolutional networks optimized for accuracy on challenging, dense prediction tasks are prohibitively slow to run on each frame in a video. The spatial similarity of nearby video frames, however, suggests opportunity to reuse computation.…

Computer Vision and Pattern Recognition · Computer Science 2018-11-27 Samvit Jain , Joseph E. Gonzalez

Video segmentation consists of a frame-by-frame selection process of meaningful areas related to foreground moving objects. Some applications include traffic monitoring, human tracking, action recognition, efficient video surveillance, and…

Computer Vision and Pattern Recognition · Computer Science 2022-12-22 Daniel F. S. Santos , Rafael G. Pires , Danilo Colombo , João P. Papa

The problem of video object segmentation can become extremely challenging when multiple instances co-exist. While each instance may exhibit large scale and pose variations, the problem is compounded when instances occlude each other causing…

Computer Vision and Pattern Recognition · Computer Science 2018-03-15 Xiaoxiao Li , Chen Change Loy

We present Contrastive Feature Masking Vision Transformer (CFM-ViT) - an image-text pretraining methodology that achieves simultaneous learning of image- and region-level representation for open-vocabulary object detection (OVD). Our…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Dahun Kim , Anelia Angelova , Weicheng Kuo

Modern one-stage video instance segmentation networks suffer from two limitations. First, convolutional features are neither aligned with anchor boxes nor with ground-truth bounding boxes, reducing the mask sensitivity to spatial location.…

Computer Vision and Pattern Recognition · Computer Science 2021-04-13 Minghan Li , Shuai Li , Lida Li , Lei Zhang

In Video Object Detection (VID), a common practice is to leverage the rich temporal contexts from the video to enhance the object representations in each frame. Existing methods treat the temporal contexts obtained from different objects…

Computer Vision and Pattern Recognition · Computer Science 2023-08-16 Chaorui Deng , Da Chen , Qi Wu

Video Object Segmentation, and video processing in general, has been historically dominated by methods that rely on the temporal consistency and redundancy in consecutive video frames. When the temporal smoothness is suddenly broken, such…

Computer Vision and Pattern Recognition · Computer Science 2018-05-17 Kevis-Kokitsi Maninis , Sergi Caelles , Yuhua Chen , Jordi Pont-Tuset , Laura Leal-Taixé , Daniel Cremers , Luc Van Gool

In the booming video era, video segmentation attracts increasing research attention in the multimedia community. Semi-supervised video object segmentation (VOS) aims at segmenting objects in all target frames of a video, given annotated…

Computer Vision and Pattern Recognition · Computer Science 2022-07-05 Xiaohao Xu , Jinglu Wang , Xiang Ming , Yan Lu

Video question-answering is a fundamental task in the field of video understanding. Although current vision--language models (VLMs) equipped with Video Transformers have enabled temporal modeling and yielded superior results, they are at…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Wei Han , Hui Chen , Min-Yen Kan , Soujanya Poria