Publication

Compression Performance Analysis in HEVC

Touradj Ebrahimi
2014
Book Chapters

Abstract

In this chapter, performance analysis of HEVC (Recommendation ITU-T H.265 | ISO/IEC 23008-2) in comparison with AVC (Recommendation ITU-T H.264 | ISO/IEC 14996-10) in terms of both objective as well as subjective quality assessments are given. Because of the increased flexibility offered by HEVC, methods to select the best coding parameters, in a rate-distortion sense, are also described. Special care has been taken to apply a unified approach when con- ducting subjective and objective quality evaluation between HEVC and AVC. Our overall evaluation study results show the coding efficiency of HEVC to be about twice higher than that of AVC.

Official source

https://infoscience.epfl.ch/entities/publication/fb19e185-a9bf-4ca9-8681-1e12e834f9a6

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Touradj Ebrahimi
2014
Book Chapters

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/fb19e185-a9bf-4ca9-8681-1e12e834f9a6

About this result

Related concepts (32)

High Efficiency Video Coding

High Efficiency Video Coding (HEVC), also known as H.265 and MPEG-H Part 2, is a video compression standard designed as part of the MPEG-H project as a successor to the widely used Advanced Video Coding (AVC, H.264, or MPEG-4 Part 10). In comparison to AVC, HEVC offers from 25% to 50% better data compression at the same level of video quality, or substantially improved video quality at the same bit rate. It supports resolutions up to 8192×4320, including 8K UHD, and unlike the primarily 8-bit AVC, HEVC's higher fidelity Main 10 profile has been incorporated into nearly all supporting hardware.

Rate–distortion theory

Rate–distortion theory is a major branch of information theory which provides the theoretical foundations for lossy data compression; it addresses the problem of determining the minimal number of bits per symbol, as measured by the rate R, that should be communicated over a channel, so that the source (input signal) can be approximately reconstructed at the receiver (output signal) without exceeding an expected distortion D. Rate–distortion theory gives an analytical expression for how much compression can be achieved using lossy compression methods.

Video Coding Experts Group

The Video Coding Experts Group or Visual Coding Experts Group (VCEG, also known as Question 6) is a working group of the ITU Telecommunication Standardization Sector (ITU-T) concerned with standards for compression coding of video, images, audio, and other signals. It is responsible for standardization of the "H.26x" line of video coding standards, the "T.8xx" line of image coding standards, and related technologies.

Related publications (4)

Compression Performance Analysis in HEVC

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