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Conventional video compression (VC) methods are based on motion compensated transform coding, and the steps of motion estimation, mode and quantization parameter selection, and entropy coding are optimized individually due to the…

Image and Video Processing · Electrical Eng. & Systems 2021-12-20 M. Akın Yılmaz , A. Murat Tekalp

Large-scale embedding-based retrieval (EBR) is the cornerstone of search-related industrial applications. Given a user query, the system of EBR aims to identify relevant information from a large corpus of documents that may be tens or…

Information Retrieval · Computer Science 2023-02-20 Yukang Gan , Yixiao Ge , Chang Zhou , Shupeng Su , Zhouchuan Xu , Xuyuan Xu , Quanchao Hui , Xiang Chen , Yexin Wang , Ying Shan

Hypothesis. Artificial general intelligence is, at its core, a compression problem. Effective compression demands resonance: deep learning scales best when its architecture aligns with the fundamental structure of the data. These are the…

To solve video-and-language grounding tasks, the key is for the network to understand the connection between the two modalities. For a pair of video and language description, their semantic relation is reflected by their encodings'…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Yubo Zhang , Feiyang Niu , Qing Ping , Govind Thattai

Building correspondences across different modalities, such as video and language, has recently become critical in many visual recognition applications, such as video captioning. Inspired by machine translation, recent models tackle this…

Computer Vision and Pattern Recognition · Computer Science 2019-11-11 Silvio Olivastri , Gurkirt Singh , Fabio Cuzzolin

Encoders of AOM/AV1 codec consider an input video sequence as succession of frames grouped in Golden-Frame (GF) groups. The coding structure of a GF group is fixed with a given GF group size. In the current AOM/AV1 encoder, video frames are…

Image and Video Processing · Electrical Eng. & Systems 2018-03-13 Di Chen , Zoe Liu , Yaowu Xu , Fengqing Zhu , Edward Delp

Scaling and lossy coding are widely used in video transmission and storage. Previous methods for enhancing the resolution of such videos often ignore the inherent interference between resolution loss and compression artifacts, which…

Computer Vision and Pattern Recognition · Computer Science 2021-03-29 Dewang Hou , Yang Zhao , Yuyao Ye , Jiayu Yang , Jian Zhang , Ronggang Wang

The idea of video super resolution is to use different view points of a single scene to enhance the overall resolution and quality. Classical energy minimization approaches first establish a correspondence of the current frame to all its…

Computer Vision and Pattern Recognition · Computer Science 2017-12-05 Jonas Geiping , Hendrik Dirks , Daniel Cremers , Michael Moeller

Enabling high compression efficiency while keeping encoding energy consumption at a low level, requires prioritization of which videos need more sophisticated encoding techniques. However, the effects vary highly based on the content, and…

Image and Video Processing · Electrical Eng. & Systems 2024-07-09 Lena Eichermüller , Gaurang Chaudhari , Ioannis Katsavounidis , Zhijun Lei , Hassene Tmar , Christian Herglotz , André Kaup

Deep generative models, and particularly facial animation schemes, can be used in video conferencing applications to efficiently compress a video through a sparse set of keypoints, without the need to transmit dense motion vectors. While…

Multimedia · Computer Science 2022-07-28 Goluck Konuko , Stéphane Lathuilière , Giuseppe Valenzise

State-of-the-art text-video retrieval (TVR) methods typically utilize CLIP and cosine similarity for efficient retrieval. Meanwhile, cross attention methods, which employ a transformer decoder to compute attention between each text query…

Computer Vision and Pattern Recognition · Computer Science 2023-07-20 Zuozhuo Dai , Fangtao Shao , Qingkun Su , Zilong Dong , Siyu Zhu

Multimodal large language models (MLLMs) have made significant progress in vision-language understanding, yet effectively aligning different modalities remains a fundamental challenge. We present a framework that unifies multimodal…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Wanpeng Zhang , Yicheng Feng , Hao Luo , Yijiang Li , Zihao Yue , Sipeng Zheng , Zongqing Lu

The use of Recurrent Neural Networks for video captioning has recently gained a lot of attention, since they can be used both to encode the input video and to generate the corresponding description. In this paper, we present a recurrent…

Computer Vision and Pattern Recognition · Computer Science 2018-11-26 Lorenzo Baraldi , Costantino Grana , Rita Cucchiara

This paper presents an audio visual automatic speech recognition (AV-ASR) system using a Transformer-based architecture. We particularly focus on the scene context provided by the visual information, to ground the ASR. We extract…

Audio and Speech Processing · Electrical Eng. & Systems 2020-05-01 Georgios Paraskevopoulos , Srinivas Parthasarathy , Aparna Khare , Shiva Sundaram

We propose a MultiScale AutoEncoder(MSAE) based extreme image compression framework to offer visually pleasing reconstruction at a very low bitrate. Our method leverages the "priors" at different resolution scale to improve the compression…

Image and Video Processing · Electrical Eng. & Systems 2020-01-06 Chao Huang , Haojie Liu , Tong Chen , Qiu Shen , Zhan Ma

Ensuring high-quality video content for wireless users has become increasingly vital. Nevertheless, maintaining a consistent level of video quality faces challenges due to the fluctuating encoded bitrate, primarily caused by dynamic video…

Image and Video Processing · Electrical Eng. & Systems 2023-11-23 Matin Mortaheb , Mohammad A. Amir Khojastepour , Srimat T. Chakradhar , Sennur Ulukus

Almost all digital videos are coded into compact representations before being transmitted. Such compact representations need to be decoded back to pixels before being displayed to humans and - as usual - before being enhanced/analyzed by…

Image and Video Processing · Electrical Eng. & Systems 2023-11-03 Xihua Sheng , Li Li , Dong Liu , Houqiang Li

This work presents a high throughput and energy efficient multicore (MC) successive cancellation (SC) decoder architecture for polar codes. SC is a low-complexity decoding algorithm with a set of sequential operations. The sequential…

Hardware Architecture · Computer Science 2021-08-30 Altuğ Süral , Ertuğrul Kolağasıoğlu

This paper deals with the latest video coding standard H265 SHVC, a scalable extension to High Efficiency Video Coding (HEVC). HEVC introduces new coding tools compared to its predecessor and is backward compatible with all types of…

Multimedia · Computer Science 2020-09-22 L. Balaji , K. K. Thyagharajan

We consider the image and video compression on resource limited platforms. An ultra low-cost image encoder, named Block Modulating Video Compression (BMVC) with an encoding complexity ${\cal O}(1)$ is proposed to be implemented on mobile…

Image and Video Processing · Electrical Eng. & Systems 2024-11-26 Siming Zheng , Yujia Xue , Waleed Tahir , Zhengjue Wang , Hao Zhang , Ziyi Meng , Gang Qu , Siwei Ma , Xin Yuan