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The goal of weakly supervised video anomaly detection is to learn a detection model using only video-level labeled data. However, prior studies typically divide videos into fixed-length segments without considering the complexity or…

Computer Vision and Pattern Recognition · Computer Science 2023-12-05 Chen Zhang , Guorong Li , Yuankai Qi , Hanhua Ye , Laiyun Qing , Ming-Hsuan Yang , Qingming Huang

Videos take a lot of time to transport over the network, hence running analytics on the live video on embedded or mobile devices has become an important system driver. Considering that such devices, e.g., surveillance cameras or AR/VR…

Computer Vision and Pattern Recognition · Computer Science 2021-07-16 Ran Xu , Rakesh Kumar , Pengcheng Wang , Peter Bai , Ganga Meghanath , Somali Chaterji , Subrata Mitra , Saurabh Bagchi

While image captioning through machines requires structured learning and basis for interpretation, improvement requires multiple context understanding and processing in a meaningful way. This research will provide a novel concept for…

Machine Learning · Computer Science 2020-02-18 Chiranjib Sur

The exponential growth of user-generated movie reviews on digital platforms has made accurate text sentiment classification a cornerstone task in natural language processing. Traditional models, including standard BERT and recurrent…

Computation and Language · Computer Science 2026-04-14 Qingyang Li

We propose a novel framework for video understanding, called Temporally Contextualized CLIP (TC-CLIP), which leverages essential temporal information through global interactions in a spatio-temporal domain within a video. To be specific, we…

Computer Vision and Pattern Recognition · Computer Science 2024-07-25 Minji Kim , Dongyoon Han , Taekyung Kim , Bohyung Han

Recent progress in using recurrent neural networks (RNNs) for image description has motivated the exploration of their application for video description. However, while images are static, working with videos requires modeling their dynamic…

Machine Learning · Statistics 2015-10-02 Li Yao , Atousa Torabi , Kyunghyun Cho , Nicolas Ballas , Christopher Pal , Hugo Larochelle , Aaron Courville

Long-range contextual information is essential for achieving high-performance semantic segmentation. Previous feature re-weighting methods demonstrate that using global context for re-weighting feature channels can effectively improve the…

Computer Vision and Pattern Recognition · Computer Science 2020-08-27 Jianbo Liu , Junjun He , Jimmy S. Ren , Yu Qiao , Hongsheng Li

With the goal of recovering high-quality image content from its degraded version, image restoration enjoys numerous applications, such as in surveillance, computational photography, medical imaging, and remote sensing. Recently,…

Computer Vision and Pattern Recognition · Computer Science 2020-07-09 Syed Waqas Zamir , Aditya Arora , Salman Khan , Munawar Hayat , Fahad Shahbaz Khan , Ming-Hsuan Yang , Ling Shao

Recently, knowledge-grounded conversations in the open domain gain great attention from researchers. Existing works on retrieval-based dialogue systems have paid tremendous efforts to utilize neural networks to build a matching model, where…

Computation and Language · Computer Science 2025-09-30 Kai Hua , Zhiyuan Feng , Chongyang Tao , Rui Yan , Lu Zhang

From video, we reconstruct a neural volume that captures time-varying color, density, scene flow, semantics, and attention information. The semantics and attention let us identify salient foreground objects separately from the background…

Computer Vision and Pattern Recognition · Computer Science 2023-10-02 Yiqing Liang , Eliot Laidlaw , Alexander Meyerowitz , Srinath Sridhar , James Tompkin

In this paper, we introduce Key-Value Memory Networks to a multimodal setting and a novel key-addressing mechanism to deal with sequence-to-sequence models. The proposed model naturally decomposes the problem of video captioning into vision…

Computer Vision and Pattern Recognition · Computer Science 2017-03-24 Arnav Kumar Jain , Abhinav Agarwalla , Kumar Krishna Agrawal , Pabitra Mitra

Deep neural networks face several challenges in hyperspectral image classification, including insufficient utilization of joint spatial-spectral information, gradient vanishing with increasing depth, and overfitting. To enhance feature…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Guandong Li , Mengxia Ye

Both accuracy and efficiency are of significant importance to the task of semantic segmentation. Existing deep FCNs suffer from heavy computations due to a series of high-resolution feature maps for preserving the detailed knowledge in…

Computer Vision and Pattern Recognition · Computer Science 2019-03-13 Tong He , Chunhua Shen , Zhi Tian , Dong Gong , Changming Sun , Youliang Yan

Image restoration (IR) is a long-standing task to recover a high-quality image from its corrupted observation. Recently, transformer-based algorithms and some attention-based convolutional neural networks (CNNs) have presented promising…

Computer Vision and Pattern Recognition · Computer Science 2025-05-19 Fangwei Hao , Ji Du , Weiyun Liang , Jing Xu , Xiaoxuan Xu

Content-based video retrieval is one of the most challenging tasks in surveillance systems. In this study, Latent Dirichlet Allocation (LDA) topic model is used to annotate surveillance videos in an unsupervised manner. In scene…

Computer Vision and Pattern Recognition · Computer Science 2025-02-11 Mohammad Kianpisheh

Under-display camera (UDC) systems are the foundation of full-screen display devices in which the lens mounts under the display. The pixel array of light-emitting diodes used for display diffracts and attenuates incident light, causing…

Computer Vision and Pattern Recognition · Computer Science 2024-03-12 Chengxu Liu , Xuan Wang , Yuanting Fan , Shuai Li , Xueming Qian

Given a degraded input image, image restoration aims to recover the missing high-quality image content. Numerous applications demand effective image restoration, e.g., computational photography, surveillance, autonomous vehicles, and remote…

Image and Video Processing · Electrical Eng. & Systems 2022-05-04 Syed Waqas Zamir , Aditya Arora , Salman Khan , Munawar Hayat , Fahad Shahbaz Khan , Ming-Hsuan Yang , Ling Shao

Textual-visual matching aims at measuring similarities between sentence descriptions and images. Most existing methods tackle this problem without effectively utilizing identity-level annotations. In this paper, we propose an identity-aware…

Computer Vision and Pattern Recognition · Computer Science 2017-08-08 Shuang Li , Tong Xiao , Hongsheng Li , Wei Yang , Xiaogang Wang

Deep learning architectures have shown remarkable results in scene understanding problems, however they exhibit a critical drop of performances when they are required to learn incrementally new tasks without forgetting old ones. This…

Computer Vision and Pattern Recognition · Computer Science 2021-01-22 Umberto Michieli , Pietro Zanuttigh

Mining precise class-aware attention maps, a.k.a, class activation maps, is essential for weakly supervised semantic segmentation. In this paper, we present L2G, a simple online local-to-global knowledge transfer framework for high-quality…

Computer Vision and Pattern Recognition · Computer Science 2022-04-08 Peng-Tao Jiang , Yuqi Yang , Qibin Hou , Yunchao Wei