scholarly journals Extended cross-component prediction in HEVC

2017 ◽  
Vol 6 ◽  
Author(s):  
Mischa Siekmann ◽  
Ali Khairat ◽  
Tung Nguyen ◽  
Detlev Marpe ◽  
Thomas Wiegand
Keyword(s):  
Performance Analysis ◽  
Video Coding ◽  
High Efficiency ◽  
Experimental Results ◽  
High Efficiency Video Coding ◽  
Compression Efficiency ◽  
Model Parameter ◽  
Different Color ◽  
Color Components ◽  
A Performance

With Version 2 of the high-efficiency video coding standard, a new compression efficiency tool targeting redundancies among color components is specified for all 4:4:4 profiles, and referred to as cross-component prediction (CCP). This paper describes and analyses two additional extensions to the specified CCP variant. In the first extension, an additional predictor is introduced. Particularly, beside the luma component, also the first chroma component can serve as a reference for prediction of the second chroma component. The second extension proposes a method for predicting the CCP model parameter from the statistics of already reconstructed neighboring blocks. A performance analysis of coding RGB content in different color representations is given in comparison with CCP and both extensions. Experimental results show that the proposed extensions can improve the compression efficiency effectively compared with CCP, when applied in the YCbCr domain.

Review of Fast Mode Decision Algorithms for Intra Prediction in High Efficiency Video Coding Standard

2017 ◽  
Vol 7 (2 (S)) ◽  
pp. 352
Author(s):  
Umesh Kaware ◽  
Sanjay Gulhane
Keyword(s):  
Video Coding ◽  
High Efficiency ◽  
Intra Prediction ◽  
Mode Decision ◽  
Fast Mode ◽  
High Efficiency Video Coding ◽  
Compression Efficiency ◽  
Fast Mode Decision ◽  
Coding Efficiency ◽  
Decision Algorithms

The emerging High Efficiency Video Coding (HEVC) standard is a new improved next generation video coding standard. HEVC aims to provide improved compression performance as compared to all other video coding standards. To improve the coding efficiency a number of new techniques have been used. The higher compression efficiency is obtained at the cost of an increase in the computational load. In HEVC 35 modes are provided for intra prediction to improve the compression efficiency. The best mode is selected by Rate Distortion Optimization (RDO) process. It achieves significant improvement in coding efficiency compared with previous standards. However, this causes high encoding complexity. This paper discuss the various fast mode decision algorithms for intra prediction in HEVC.

scholarly journals Quality Scalability Compression on Single-Loop Solution in HEVC

2014 ◽  
Vol 2014 ◽  
pp. 1-5
Author(s):  
Mengmeng Zhang ◽  
Hongyun Lu ◽  
Zhi Liu
Keyword(s):  
Video Coding ◽  
High Efficiency ◽  
Scalable Video Coding ◽  
Experimental Results ◽  
Scalable Video ◽  
Rate Reduction ◽  
High Efficiency Video Coding ◽  
Single Loop ◽  
Rate Decrease ◽  
Significant Rate

This paper proposes a quality scalable extension design for the upcoming high efficiency video coding (HEVC) standard. In the proposed design, the single-loop decoder solution is extended into the proposed scalable scenario. A novel interlayer intra/interprediction is added to reduce the amount of bits representation by exploiting the correlation between coding layers. The experimental results indicate that the average Bjøntegaard delta rate decrease of 20.50% can be gained compared with the simulcast encoding. The proposed technique achieved 47.98% Bjøntegaard delta rate reduction compared with the scalable video coding extension of the H.264/AVC. Consequently, significant rate savings confirm that the proposed method achieves better performance.

scholarly journals Interlayer Simplified Depth Coding for Quality Scalability on 3D High Efficiency Video Coding

2014 ◽  
Vol 2014 ◽  
pp. 1-5
Author(s):  
Mengmeng Zhang ◽  
Hongyun Lu ◽  
Huihui Bai
Keyword(s):  
Video Coding ◽  
High Efficiency ◽  
Prediction Method ◽  
3D Video ◽  
Experimental Results ◽  
Base Layer ◽  
Prediction Tool ◽  
High Efficiency Video Coding ◽  
Depth Maps ◽  
Depth Coding

A quality scalable extension design is proposed for the upcoming 3D video on the emerging standard for High Efficiency Video Coding (HEVC). A novel interlayer simplified depth coding (SDC) prediction tool is added to reduce the amount of bits for depth maps representation by exploiting the correlation between coding layers. To further improve the coding performance, the coded prediction quadtree and texture data from corresponding SDC-coded blocks in the base layer can be used in interlayer simplified depth coding. In the proposed design, the multiloop decoder solution is also extended into the proposed scalable scenario for texture views and depth maps, and will be achieved by the interlayer texture prediction method. The experimental results indicate that the average Bjøntegaard Delta bitrate decrease of 54.4% can be gained in interlayer simplified depth coding prediction tool on multiloop decoder solution compared with simulcast. Consequently, significant rate savings confirm that the proposed method achieves better performance.

scholarly journals The Influence of Coding Tools on Immersive Video Coding

2021 ◽  
Author(s):  
Jakub Szekiełda ◽  
Adrian Dziembowski ◽  
Dawid Mieloch
Keyword(s):  
Video Coding ◽  
Video Compression ◽  
High Efficiency ◽  
Video Codec ◽  
Experimental Results ◽  
High Efficiency Video Coding ◽  
Video Encoder ◽  
Typical Configuration

This paper summarizes the research on the influence of HEVC (High Efficiency Video Coding) configuration on immersive video coding. The research was focused on the newest MPEG standard for immersive video compression – MIV (MPEG Immersive Video). The MIV standard is used as a preprocessing step before the typical video compression thus is agnostic to the video codec. Uncommon characteristics of videos produced by MIV causes, that the typical configuration of the video encoder (optimized for compression of natural sequences) is not optimal for such content. The experimental results prove, that the performance of video compression for immersive video can be significantly increased when selected coding tools are being used.

scholarly journals Compression efficiency analysis of AV1, VVC, and HEVC for random access applications

2021 ◽  
Vol 10 ◽  
Author(s):  
Tung Nguyen ◽  
Detlev Marpe
Keyword(s):  
Video Coding ◽  
Video Compression ◽  
High Efficiency ◽  
Random Access ◽  
Bit Rate ◽  
High Efficiency Video Coding ◽  
Compression Efficiency ◽  
Coding Schemes ◽  
Specific Frequency ◽  
Different Characteristics

AOM Video 1 (AV1) and Versatile Video Coding (VVC) are the outcome of two recent independent video coding technology developments. Although VVC is the successor of High Efficiency Video Coding (HEVC) in the lineage of international video coding standards jointly developed by ITU-T and ISO/IEC within an open and public standardization process, AV1 is a video coding scheme that was developed by the industry consortium Alliance for Open Media (AOM) and that has its technological roots in Google's proprietary VP9 codec. This paper presents a compression efficiency evaluation for the AV1, VVC, and HEVC video coding schemes in a typical video compression application requiring random access. The latter is an important property, without which essential functionalities in digital video broadcasting or streaming could not be provided. For the evaluation, we employed a controlled experimental environment that basically follows the guidelines specified in the Common Test Conditions of the Joint Video Experts Team. As representatives of the corresponding video coding schemes, we selected their freely available reference software implementations. Depending on the application-specific frequency of random access points, the experimental results show averaged bit-rate savings of about 10–15% for AV1 and 36–37% for the VVC reference encoder implementation (VTM), both relative to the HEVC reference encoder implementation (HM) and by using a test set of video sequences with different characteristics regarding content and resolution. A direct comparison between VTM and AV1 reveals averaged bit-rate savings of about 25–29% for VTM, while the averaged encoding and decoding run times of VTM relative to those of AV1 are around 300% and 270%, respectively.

High-Performance Hardware Interpolation Architecture for High Efficiency Video Coding Decoder

2016 ◽  
Vol 11 (9) ◽  
pp. 764
Author(s):  
Lella Aicha Ayadi ◽  
Nihel Neji ◽  
Hassen Loukil ◽  
Mouhamed Ali Ben Ayed ◽  
Nouri Masmoudi
Keyword(s):  
Video Coding ◽  
High Performance ◽  
High Efficiency ◽  
High Efficiency Video Coding
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