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Due to the extensive use of information technology and the recent developments in multimedia systems, the amount of multimedia data available to users has increased exponentially. Video is an example of multimedia data as it contains…

Information Retrieval · Computer Science 2014-01-03 Avinash N Bhute , B B Meshram

In this paper an analysis of the existing video information protection methods is made. Analysis of current H.323 protocol stack has been made. A new encryption/decryption layer has been suggested. An approach for partial data encryption in…

Cryptography and Security · Computer Science 2010-09-14 Nikolai Stoianov

Visual language models encounter challenges in computational efficiency and latency, primarily due to the substantial redundancy in the token representations of high-resolution images and videos. Current attention/similarity-based…

Computer Vision and Pattern Recognition · Computer Science 2025-12-11 Dehua Zheng , Mouxiao Huang , Borui Jiang , Hailin Hu , Xinghao Chen

Video-language embeddings are a promising avenue for injecting semantics into visual representations, but existing methods capture only short-term associations between seconds-long video clips and their accompanying text. We propose HierVL,…

Computer Vision and Pattern Recognition · Computer Science 2023-06-09 Kumar Ashutosh , Rohit Girdhar , Lorenzo Torresani , Kristen Grauman

This paper introduces the system we developed for the Youtube-8M Video Understanding Challenge, in which a large-scale benchmark dataset was used for multi-label video classification. The proposed framework contains hierarchical deep…

Computer Vision and Pattern Recognition · Computer Science 2017-07-12 Luming Tang , Boyang Deng , Haiyu Zhao , Shuai Yi

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

The intent of the H.264 AVC project was to create a standard capable of providing good video quality at substantially lower bit rates than previous standards without increasing the complexity of design so much that it would be impractical…

Multimedia · Computer Science 2009-09-02 Sourabh Rungta , Kshitij Verma , Neeta Tripathi , Anupam Shukla

As video transmission increasingly serves machine vision systems (MVS) instead of human vision systems (HVS), video coding for machines (VCM) has become a critical research topic. Existing VCM methods often bind codecs to specific…

Image and Video Processing · Electrical Eng. & Systems 2025-11-04 Yuxiao Sun , Meiqin Liu , Chao Yao , Qi Tang , Jian Jin , Weisi Lin , Frederic Dufaux , Yao Zhao

The self-media era provides us tremendous high quality videos. Unfortunately, frequent video copyright infringements are now seriously damaging the interests and enthusiasm of video creators. Identifying infringing videos is therefore a…

Computer Vision and Pattern Recognition · Computer Science 2023-09-14 Zhenguang Liu , Xinyang Yu , Ruili Wang , Shuai Ye , Zhe Ma , Jianfeng Dong , Sifeng He , Feng Qian , Xiaobo Zhang , Roger Zimmermann , Lei Yang

The goal of video highlight detection is to select the most attractive segments from a long video to depict the most interesting parts of the video. Existing methods typically focus on modeling relationship between different video segments…

Computer Vision and Pattern Recognition · Computer Science 2022-04-12 Fanyue Wei , Biao Wang , Tiezheng Ge , Yuning Jiang , Wen Li , Lixin Duan

While homomorphic encryption (HE) provides strong privacy protection, its high computational cost has restricted its application to simple tasks. Recently, hyperdimensional computing (HDC) applied to HE has shown promising performance for…

Cryptography and Security · Computer Science 2025-11-04 Jaewoo Park , Chenghao Quan , Jongeun Lee

The High Efficiency Video Coding (HEVC/H.265) standard doubles the compression efficiency of the widely used H.264/AVC standard. For practical applications, rate control (RC) algorithms for HEVC need to be developed. Based on the R-Q,…

Multimedia · Computer Science 2019-11-05 Minhao Tang , Jiangtao Wen , Yuxing Han

Vision-Language Models (VLMs) have shown strong capabilities on diverse multimodal tasks. However, the large number of visual tokens output by the vision encoder severely hinders inference efficiency, and prior studies have shown that many…

Computer Vision and Pattern Recognition · Computer Science 2025-10-10 Jingqi Xu , Jingxi Lu , Chenghao Li , Sreetama Sarkar , Peter A. Beerel

In recent years, the image and video coding technologies have advanced by leaps and bounds. However, due to the popularization of image and video acquisition devices, the growth rate of image and video data is far beyond the improvement of…

Computer Vision and Pattern Recognition · Computer Science 2019-04-23 Siwei Ma , Xinfeng Zhang , Chuanmin Jia , Zhenghui Zhao , Shiqi Wang , Shanshe Wang

Large Vision-Language Models (LVLMs) commonly follow a paradigm that projects visual features and then concatenates them with text tokens to form a unified sequence input for Large Language Models (LLMs). However, this paradigm leads to a…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Xinyu Wei , Guoli Yang , Jialu Zhou , Mingyue Yang , Leqian Li , Kedi Zhang , Chunping Qiu

This article presents block-wise image encryption for the vision transformer and its applications. Perceptual image encryption for deep learning enables us not only to protect the visual information of plain images but to also embed unique…

Cryptography and Security · Computer Science 2023-08-16 Hitoshi Kiya , Ryota Iijima , Teru Nagamori

The promising improvement in compression efficiency of Versatile Video Coding (VVC) compared to High Efficiency Video Coding (HEVC) comes at the cost of a non-negligible encoder side complexity. The largely increased complexity overhead is…

Multimedia · Computer Science 2023-12-19 Yiqun Liu , Mohsen Abdoli , Thomas Guionnet , Christine Guillemot , Aline Roumy

Video is an increasingly prominent and information-dense medium, yet it poses substantial challenges for language models. A typical video consists of a sequence of shorter segments, or shots, that collectively form a coherent narrative.…

Computer Vision and Pattern Recognition · Computer Science 2024-10-29 Richard Luo , Austin Peng , Adithya Vasudev , Rishabh Jain

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

Exploring the complementary information of multi-view data to improve clustering effects is a crucial issue in multi-view clustering. In this paper, we propose a novel model based on information theory termed Informative Multi-View…

Machine Learning · Computer Science 2023-05-31 Fu Lele , Zhang Lei , Wang Tong , Chen Chuan , Zhang Chuanfu , Zheng Zibin