نتایج جستجو برای: high efficiency video coding

تعداد نتایج: 2571602  

Journal: :Electr. J. Comb. 2003
Karen S. Briggs Jeffrey B. Remmel

Garsia and Remmel (JCT. A 41 (1986), 246-275) used rook configurations to give a combinatorial interpretation to the q-analogue of a formula of Frobenius relating the Stirling numbers of the second kind to the Eulerian polynomials. Later, Remmel and Wachs defined generalized p, q-Stirling numbers of the first and second kind in terms of rook placements. Additionally, they extended their definit...

Journal: :IEEE Transactions on Circuits and Systems for Video Technology 2012

Journal: :CoRR 2017
Tomasz Grajek Jakub Stankowski Damian Karwowski Krzysztof Klimaszewski Olgierd Stankiewicz Krzysztof Wegner

The paper presents quantitative analysis of the video quality losses in the homogenous HEVC video transcoder. With the use of HM15.0 reference software and a set of test video sequences, cascaded pixel domain video transcoder (CPDT) concept has been used to gather all the necessary data needed for the analysis. This experiment was done for wide range of source and target bitrates. The essential...

Journal: :Information 2016
Yucong Chen Yun Zhou Jiangtao Wen

Yucong Chen 1, Yun Zhou 2 and Jiangtao Wen 1,* 1 Department of Computer Science and Technology, Tsinghua University, Beijing 100084, China; [email protected] 2 Academy of Broadcasting Science, State Administration of Press, Publication, Radio, Film and Television of The People’s Republic of China (SAPPRFT), Beijing 100045, China; [email protected] * Correspondence: [email protected]; ...

2012
Mauricio Alvarez Mesa Chi Ching Chi Thomas Schierl Ben Juurlink

2013
Shanshe Wang Siwei Ma Shiqi Wang Debin Zhao Wen Gao

In this paper, a novel quadratic ρ-domain frame layer rate control algorithm is proposed for Low Delay (LD) configuration in High Efficiency Video Coding (HEVC). Firstly, we propose a quadratic ρ-domain rate quantization (R-Q) model to establish the relationship between bit rate and quantization parameter. Subsequently, inspired by the specialized QP determination and reference picture set (RPS...

Journal: :JSW 2015
Jiaji Wang Rangding Wang Dawen Xu Wei Li

An information hiding algorithm for HEVC is proposed. For 33 kinds of directional prediction modes in the encoding process of 4×4 luminance blocks, intra prediction modes are mapped to the angle values. We are establishing a mapping relationship table between the angle differences and secret information. Modifying the intra prediction modes to embed secret information is based on the mapping. T...

Journal: :Journal of Visual Communication and Image Representation 2011

Scene change detection plays an important role in a number of video applications, including video indexing, searching, browsing, semantic features extraction, and, in general, pre-processing and post-processing operations. Several scene change detection methods have been proposed in different coding standards. Most of them use fixed thresholds for the similarity metrics to determine if there wa...

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