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Long-context video modeling is critical for multimodal large language models (MLLMs), enabling them to process movies, online video streams, and so on. Despite its advances, handling long videos remains challenging due to the difficulty in…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Xinhao Li , Yi Wang , Jiashuo Yu , Xiangyu Zeng , Yuhan Zhu , Haian Huang , Jianfei Gao , Kunchang Li , Yinan He , Chenting Wang , Yu Qiao , Yali Wang , Limin Wang

Recently, deep learning-based image compression has made signifcant progresses, and has achieved better ratedistortion (R-D) performance than the latest traditional method, H.266/VVC, in both subjective metric and the more challenging…

Image and Video Processing · Electrical Eng. & Systems 2022-06-23 Haisheng Fu , Feng Liang , Jie Liang , Binglin Li , Guohe Zhang , Jingning Han

Neural video codecs have demonstrated great potential in video transmission and storage applications. Existing neural hybrid video coding approaches rely on optical flow or Gaussian-scale flow for prediction, which cannot support…

Image and Video Processing · Electrical Eng. & Systems 2023-07-19 Zongyu Guo , Runsen Feng , Zhizheng Zhang , Xin Jin , Zhibo Chen

With the wide spread of video, video watermarking has become increasingly crucial for copyright protection and content authentication. However, video watermarking still faces numerous challenges. For example, existing methods typically have…

Cryptography and Security · Computer Science 2025-09-23 Jianbin Ji , Dawen Xu , Li Dong , Lin Yang , Songhan He

Volumetric video based on Neural Radiance Field (NeRF) holds vast potential for various 3D applications, but its substantial data volume poses significant challenges for compression and transmission. Current NeRF compression lacks the…

Computer Vision and Pattern Recognition · Computer Science 2024-08-06 Zihan Zheng , Houqiang Zhong , Qiang Hu , Xiaoyun Zhang , Li Song , Ya Zhang , Yanfeng Wang

Recent work on implicit neural representations (INRs) has evidenced their potential for efficiently representing and encoding conventional video content. In this paper we, for the first time, extend their application to immersive…

Image and Video Processing · Electrical Eng. & Systems 2024-11-22 Ho Man Kwan , Fan Zhang , Andrew Gower , David Bull

Training neural video codec (NVC) with variable rate is a highly challenging task due to its complex training strategies and model structure. In this paper, we train an efficient variable bitrate neural video codec (EV-NVC) with the…

Multimedia · Computer Science 2025-11-04 Yongcun Hu , Yingzhen Zhai , Jixiang Luo , Wenrui Dai , Dell Zhang , Hongkai Xiong , Xuelong Li

Neural video compression (NVC) is a rapidly evolving video coding research area, with some models achieving superior coding efficiency compared to the latest video coding standard Versatile Video Coding (VVC). In conventional video coding…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Yeongwoong Kim , Suyong Bahk , Seungeon Kim , Won Hee Lee , Dokwan Oh , Hui Yong Kim

Neural video compression has recently demonstrated significant potential to compete with conventional video codecs in terms of rate-quality performance. These learned video codecs are however associated with various issues related to…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Ge Gao , Ho Man Kwan , Fan Zhang , David Bull

Large Vision-Language Models (VLMs) have been extended to understand both images and videos. Visual token compression is leveraged to reduce the considerable token length of visual inputs. To meet the needs of different tasks, existing…

Computer Vision and Pattern Recognition · Computer Science 2024-12-13 Chenyu Yang , Xuan Dong , Xizhou Zhu , Weijie Su , Jiahao Wang , Hao Tian , Zhe Chen , Wenhai Wang , Lewei Lu , Jifeng Dai

Reconstructing High Dynamic Range (HDR) video from image sequences captured with alternating exposures is challenging, especially in the presence of large camera or object motion. Existing methods typically align low dynamic range sequences…

Computer Vision and Pattern Recognition · Computer Science 2024-03-07 Gangwei Xu , Yujin Wang , Jinwei Gu , Tianfan Xue , Xin Yang

High Dynamic Range (HDR) user-generated (UGC) videos are rapidly proliferating across social platforms, yet most perceptual video quality assessment (VQA) systems remain tailored to Standard Dynamic Range (SDR). HDR has a higher bit depth,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Shreshth Saini , Bowen Chen , Neil Birkbeck , Yilin Wang , Balu Adsumilli , Alan C. Bovik

Brain-inspired hyperdimensional computing (HDC) has been recently considered a promising learning approach for resource-constrained devices. However, existing approaches use static encoders that are never updated during the learning…

Machine Learning · Computer Science 2023-04-13 Junyao Wang , Sitao Huang , Mohsen Imani

Video-based multimodal large language models (Video-LLMs) possess significant potential for video understanding tasks. However, most Video-LLMs treat videos as a sequential set of individual frames, which results in insufficient…

Computer Vision and Pattern Recognition · Computer Science 2024-10-16 Xiaohan Lan , Yitian Yuan , Zequn Jie , Lin Ma

Deep learning-based image compression algorithms typically focus on designing encoding and decoding networks and improving the accuracy of entropy model estimation to enhance the rate-distortion (RD) performance. However, few algorithms…

Image and Video Processing · Electrical Eng. & Systems 2024-10-08 Junhui Li , Jutao Li , Xingsong Hou , Huake Wang

Neural Video Compression has emerged in recent years, with condition-based frameworks outperforming traditional codecs. However, most existing methods rely solely on the previous frame's features to predict temporal context, leading to two…

Computer Vision and Pattern Recognition · Computer Science 2025-12-16 Tiange Zhang , Zhimeng Huang , Xiandong Meng , Kai Zhang , Zhipin Deng , Siwei Ma

High-efficiency video coding (HEVC) encryption has been proposed to encrypt syntax elements for the purpose of video encryption. To achieve high video security, to the best of our knowledge, almost all of the existing HEVC encryption…

Multimedia · Computer Science 2020-11-06 Wenying Wen , Rongxin Tu , Yushu Zhang , Yuming Fang , Yong Yang

Typical video modeling methods, such as LLava, represent videos as sequences of visual tokens, which are then processed by the LLM backbone for effective video understanding. However, this approach leads to a massive number of visual…

Computation and Language · Computer Science 2025-06-05 Hongzhi Zhang , Jingyuan Zhang , Xingguang Ji , Qi Wang , Fuzheng Zhang

Accurately capturing dynamic scenes with wide-ranging motion and light intensity is crucial for many vision applications. However, acquiring high-speed high dynamic range (HDR) video is challenging because the camera's frame rate restricts…

Image and Video Processing · Electrical Eng. & Systems 2024-04-26 Caixin Wang , Jie Zhang , Matthew A. Wilson , Ralph Etienne-Cummings

Although the video compression ratio nowadays becomes higher, the video coders such as H.264/AVC, H.265/HEVC, H.266/VVC always suffer from the video artifacts. In this paper, we design a neural network to enhance the quality of the…

Image and Video Processing · Electrical Eng. & Systems 2021-02-02 Trinh Man Hoang , Jinjia Zhou