Page 20 - ITU Journal, ICT Discoveries, Volume 3, No. 1, June 2020 Special issue: The future of video and immersive media

ITU Journal: ICT Discoveries, Vol. 3(1), June 2020

Overview of MPEG-5 Part 2 – Low complexity enhancement video coding

(LCEVC)
Pages 109-119

Florian Maurer, Stefano Battista, Lorenzo Ciccarelli, Guido Meardi, Simone Ferrara

This paper provides an overview of MPEG-5 Part 2 Low Complexity Enhancement Video Coding (LCEVC),
a novel video coding standard from the MPEG ISO Working Group. The codec is designed for use in
conjunction with existing video codecs, leveraging specific tools for encoding "residuals", i.e. the difference
between the original video and its compressed representation. LCEVC can improve compression efficiency
and reduce the overall computational complexity using a small number of specialized enhancement tools. This
paper provides an outline of the coding structure of encoder and decoder, coding tools, and an overview of the
performance of LCEVC with regards to both compression efficiency and processing complexity.
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Some little-known aspects of the history of the JPEG still picture-coding standard,

ITU-T T.81 | ISO/IEC 10918-1 (1986-1993)
Pages 123-158

István Sebestyén
The JPEG-1 standard of the Joint Photographic Experts Group (JPEG) whose specification was submitted to
and approved by the Consultative Committee for International Telephony and Telegraphy (CCITT; now ITU-
T) in 1992 and by ISO/IEC JTC1 in 1994 is still the most successful still-picture compression standard on the
market. Much has been written about the standard itself, how the image compression functions, but less about
the unique policies and processes of the JPEG, the origins of the requirements of the JPEG-1 format, the
common components principle, the fate of the targeted CCITT/ITU applications and the nature of those
applications that made JPEG one of the world’s most successful standards. It is also not widely known that
JPEG is one of the first standards to be followed and supported by an open source software (OSS) project and
code – developed and distributed by the Independent JPEG Group (IJG) – that has provided a substantial drive
towards market penetration and contributed to the wide acceptance of the JPEG standard. This paper also
presents an analysis of the JPEG-IJG co-operation and draws some conclusions about its nature. Finally, the
lessons learned are discussed.

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