نتایج جستجو برای: hevc

تعداد نتایج: 876  

Journal: :IEICE Electronic Express 2013
Sha Shen Weiwei Shen Yibo Fan Xiaoyang Zeng

This paper present a high throughput design for Sample Adaptive offset (SAO) filter and deblocking filter used in an HEVC decoder. A five-stage pipelined architecture is proposed to support both SAO filter and deblocking filter on a 32 × 32 pixel block basis. Deblocking filter and SAO filter can work simultaneously in consecutive pipeline stages. The on-chip SRAM can also be shared by deblockin...

2017
Mithilesh Kumar JHA Sumantra Dutta Roy Brejesh Lall

The new generation multimedia applications such as Ultra High Definition TV, 3D Video and Cloud Storage keeps the compression research relevant even post to the advent of the state-of-art standard HEVC codec. The continued studies on human visual system suggest that a perceptually acceptable reconstruction with reduced bandwidth requirements may be more acceptable and commercially viable soluti...

2014
T. Biatek Mickaël Raulet Jean-François Travers Olivier Déforges

This paper proposes a quantization parameter estimation algorithm for HEVC CTU rate control. Several methods were proposed, mostly based on Lagrangian optimization combined with Laplacian distribution for transformed coefficients. These methods are accurate but increase the encoder complexity. This paper provides an innovative reduced complexity algorithm based on a ρ-domain rate model. Indeed,...

Journal: :Eurasip Journal on Image and Video Processing 2021

Abstract As High Efficiency Video Coding (HEVC) is a worldwide popular video coding standard, the steganography of HEVC videos has gained more and attention. Prediction unit (PU) one most important innovative modules HEVC; thus, PU partition mode-based becoming novel branch steganography. However, embedding capacity this kind limited by types modes. To solve problem, modified exploiting modific...

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

Journal: :The Journal of The Institute of Image Information and Television Engineers 2011

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

2013
Francisco Aguirre-Ramos Claudia Feregrino Uribe René Cumplido

The new high efficiency video coding standard (HEVC) includes structures and tools that were not available in previous standards. The macrobock concept was replaced by a quad-tree structure that includes: coding units, prediction units and transform units; also, new parallelization tools are now available. Video transmissions over error prone environments have the need of reliable and efficient...

Journal: :J. Visual Communication and Image Representation 2014
Hanli Wang Han Du Weiyao Lin Sam Kwong Oscar C. Au Jun Wu Zhihua Wei

Similar to previous video coding standards, transform and quantization are employed in the most recent video coding standard High Efficiency Video Coding (HEVC), and there exist a large number of transform coefficients being quantized to zeros. In order to reduce the computations in transform and quantization, a novel prediction algorithm is designed to early detect all-zero 4 4 blocks prior to...

2012
Harilaos Koumaras Spyros Mantzouratos Michail-Alexandros Kourtis Drakoulis Martakos

This paper, deals with the currently under-development video encoding standard H.265/HEVC. The main purpose of this paper is to perform a quantitative performance evaluation of the emerging standard in comparison to its predecessor H.264/AVC. The paper focuses on both the encoding and compression efficiency by measuring the PSNR scores and bit rate values of reference and non-reference signals....

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