Journal ArticleDOI
Fast integer-pel and fractional-pel motion estimation for H.264/AVC
TLDR
A hybrid Unsymmetrical-cross Multi-hexagon-grid Search (UMHexagonS) algorithm is introduced, which well solves the false motion vector estimation problem because of the local-minimum and can save 30–50% computation compared with the Full Fractional-pel Search scheme.About:
This article is published in Journal of Visual Communication and Image Representation.The article was published on 2006-04-01. It has received 196 citations till now. The article focuses on the topics: Quarter-pixel motion & Motion estimation.read more
Citations
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Journal ArticleDOI
Learning for Video Compression
TL;DR: The proposed PixelMotionCNN (PMCNN) which includes motion extension and hybrid prediction networks can model spatiotemporal coherence to effectively perform predictive coding inside the learning network and provides a possible new direction to further improve compression efficiency and functionalities of future video coding.
Journal ArticleDOI
A Hardware-Efficient H.264/AVC Motion-Estimation Design for High-Definition Video
TL;DR: A low-latency and hardware-efficient ME design with three design techniques that adopts parallel instead of serial multiresolution search, and applies a mode-filtering approach to further reduce the bandwidth and cycles and share the buffer of IME and FME.
Journal ArticleDOI
Explore and Model Better I-Frames for Video Coding
TL;DR: This paper uses a most common frame of a scene in a video sequence with dynamic background modeling and then encodes it to replace the conventional I-frame, confirming the superiority of the proposed scheme in comparison with the existing state-of-art methods by significant image quality improvement and computational time reduction.
Journal ArticleDOI
Motion vector-based video steganography with preserved local optimality
Hong Zhang,Yun Cao,Xianfeng Zhao +2 more
TL;DR: Comparative experimental results have demonstrated that video steganography based on the proposed method is capable of withstanding current best steganalysis while keeping the video compression performance.
Proceedings ArticleDOI
NEMO: enabling neural-enhanced video streaming on commodity mobile devices
TL;DR: NEMO leverages fine-grained dependencies using information from the video codec and strives to provide guarantees in the quality degradation compared to per-frame super-resolution, which leads to a 31.2% improvement in quality of experience for mobile users.
References
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Journal ArticleDOI
Overview of the H.264/AVC video coding standard
TL;DR: An overview of the technical features of H.264/AVC is provided, profiles and applications for the standard are described, and the history of the standardization process is outlined.
Book
Fundamentals of digital image processing
TL;DR: This chapter discusses two Dimensional Systems and Mathematical Preliminaries and their applications in Image Analysis and Computer Vision, as well as image reconstruction from Projections and image enhancement.
Journal ArticleDOI
A new diamond search algorithm for fast block-matching motion estimation
Shan Zhu,Kai-Kuang Ma +1 more
TL;DR: Experimental results show that the proposed diamond search (DS) algorithm is better than the four-step search (4SS) and block-based gradient descent search (BBGDS), in terms of mean-square error performance and required number of search points.
Journal ArticleDOI
Displacement Measurement and Its Application in Interframe Image Coding
TL;DR: The motion compensation is applied for analysis and design of a hybrid coding scheme and the results show a factor of two gain at low bit rates.
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A new diamond search algorithm for fast block-matching motion estimation
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