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Motion compensation is one of the most essential methods for any video compression algorithm. Video frame prediction is a task analogous to motion compensation. In recent years, the task of frame prediction is undertaken by deep neural…

图像与视频处理 · 电气工程与系统科学 2020-08-25 Serkan Sulun

There has been a growing trend in compressing and transmitting videos from terminals for machine vision tasks. Nevertheless, most video coding optimization method focus on minimizing distortion according to human perceptual metrics,…

多媒体 · 计算机科学 2025-12-18 Fei Zhao , Mengxi Guo , Shijie Zhao , Junlin Li , Li Zhang , Xiaodong Xie

Learning-based video compression has been extensively studied over the past years, but it still has limitations in adapting to various motion patterns and entropy models. In this paper, we propose multi-mode video compression (MMVC), a…

图像与视频处理 · 电气工程与系统科学 2023-04-06 Bowen Liu , Yu Chen , Rakesh Chowdary Machineni , Shiyu Liu , Hun-Seok Kim

Learned hierarchical B-frame coding aims to leverage bi-directional reference frames for better coding efficiency. However, the domain shift between training and test scenarios due to dataset limitations poses a challenge. This issue arises…

图像与视频处理 · 电气工程与系统科学 2024-02-21 Zong-Lin Gao , Sang NguyenQuang , Wen-Hsiao Peng , Xiem HoangVan

Recently, learned video compression (LVC) has shown superior performance under low-delay configuration. However, the performance of learned bi-directional video compression (LBVC) still lags behind traditional bi-directional coding. The…

计算机视觉与模式识别 · 计算机科学 2025-04-04 Yongqi Zhai , Luyang Tang , Wei Jiang , Jiayu Yang , Ronggang Wang

For neural video codec, it is critical, yet challenging, to design an efficient entropy model which can accurately predict the probability distribution of the quantized latent representation. However, most existing video codecs directly use…

图像与视频处理 · 电气工程与系统科学 2022-07-14 Jiahao Li , Bin Li , Yan Lu

This paper discusses video motion capture, namely, 3D reconstruction of human motion from multi-camera images. After the Part Confidence Maps are computed from each camera image, the proposed spatiotemporal filter is applied to deliver the…

机器人学 · 计算机科学 2019-12-11 Takuya Ohashi , Yosuke Ikegami , Kazuki Yamamoto , Wataru Takano , Yoshihiko Nakamura

Fast and efficient sampling-based motion planning (SMP) is an integral component of many robotic systems, such as autonomous cars. A popular technique to improve the efficiency of these planners is to restrict search space in the planning…

机器人学 · 计算机科学 2022-11-15 Jacob J. Johnson , Uday S. Kalra , Ankit Bhatia , Linjun Li , Ahmed H. Qureshi , Michael C. Yip

3D Gaussian splats have emerged as a revolutionary, effective, learned representation for static 3D scenes. In this work, we explore using 2D Gaussian splats as a new primitive for representing videos. We propose GSVC, an approach to…

计算机视觉与模式识别 · 计算机科学 2025-01-23 Longan Wang , Yuang Shi , Wei Tsang Ooi

The framework of dominant learned video compression methods is usually composed of motion prediction modules as well as motion vector and residual image compression modules, suffering from its complex structure and error propagation…

图像与视频处理 · 电气工程与系统科学 2021-04-14 Zhenhong Sun , Zhiyu Tan , Xiuyu Sun , Fangyi Zhang , Dongyang Li , Yichen Qian , Hao Li

Motion estimation is the most critical process in video coding systems. First of all, it has a definitive impact on the rate-distortion performance given by the video encoder. Secondly, it is the most computationally intensive process…

多媒体 · 计算机科学 2011-11-09 S. Lopez , G. M. Callico , J. F. Lopez , R. Sarmiento

3D representations of highly deformable 3D models, such as dynamic 3D meshes, have recently become very popular due to their wide applicability in various domains. This trend inevitably leads to a demand for storage and transmission of…

信号处理 · 电气工程与系统科学 2021-11-22 Gerasimos Arvanitis , Aris S. Lalos , Konstantinos Moustakas

Previous CNN-based video super-resolution approaches need to align multiple frames to the reference. In this paper, we show that proper frame alignment and motion compensation is crucial for achieving high quality results. We accordingly…

计算机视觉与模式识别 · 计算机科学 2017-04-11 Xin Tao , Hongyun Gao , Renjie Liao , Jue Wang , Jiaya Jia

Block based motion estimation is integral to inter prediction processes performed in hybrid video codecs. Prevalent block matching based methods that are used to compute block motion vectors (MVs) rely on computationally intensive search…

图像与视频处理 · 电气工程与系统科学 2022-12-06 Somdyuti Paul , Andrey Norkin , Alan C. Bovik

In modern video coding standards, block-based inter prediction is widely adopted, which brings high compression efficiency. However, in natural videos, there are usually multiple moving objects of arbitrary shapes, resulting in complex…

图像与视频处理 · 电气工程与系统科学 2024-09-13 Zhuoyuan Li , Zikun Yuan , Li Li , Dong Liu , Xiaohu Tang , Feng Wu

Learned video compression has recently emerged as an essential research topic in developing advanced video compression technologies, where motion compensation is considered one of the most challenging issues. In this paper, we propose a…

图像与视频处理 · 电气工程与系统科学 2023-06-30 Huairui Wang , Zhenzhong Chen , Chang Wen Chen

Conventional video compression methods employ a linear transform and block motion model, and the steps of motion estimation, mode and quantization parameter selection, and entropy coding are optimized individually due to combinatorial…

图像与视频处理 · 电气工程与系统科学 2021-05-28 M. Akin Yilmaz , A. Murat Tekalp

Three-dimensional (3D) point clouds are becoming more and more popular for representing 3D objects and scenes. Due to limited network bandwidth, efficient compression of 3D point clouds is crucial. To tackle this challenge, the Moving…

计算机视觉与模式识别 · 计算机科学 2024-12-10 Zehan Wang , Yuxuan Wei , Hui Yuan , Wei Zhang , Peng Li

Existing works on motion deblurring either ignore the effects of depth-dependent blur or work with the assumption of a multi-layered scene wherein each layer is modeled in the form of fronto-parallel plane. In this work, we consider the…

计算机视觉与模式识别 · 计算机科学 2022-02-08 Kuldeep Purohit , Subeesh Vasu , M. Purnachandra Rao , A. N. Rajagopalan

Deep learning has shown great potential in image and video compression tasks. However, it brings bit savings at the cost of significant increases in coding complexity, which limits its potential for implementation within practical…

图像与视频处理 · 电气工程与系统科学 2021-05-28 Luka Murn , Saverio Blasi , Alan F. Smeaton , Noel E. O'Connor , Marta Mrak