MPEG encoding algorithm with scene adaptive dynamic GOP structure

Author

Yoneyama, Akio ; Nakajima, Yasuyuki ; Yanagihara, Hiromasa ; Sugano, Masaru

Author_Institution

Internet Applications Lab., KDD Kamifukuoka R&D Labs., Saitama, Japan

fYear

1999

fDate

1999

Firstpage

297

Lastpage

302

Abstract

Although a GOP (group of picture) length is often fixed in MPEG, this may not guarantee the best picture quality from the point of view of coding efficiency. Furthermore, it is also well known that P-picture interval M=3 does not provide the best quality for all sequences. We propose an MPEG encoding algorithm with scene adaptive dynamic GOP structure to enhance the picture quality in the cases mentioned above. Using macroblock characteristics such as luminance activity and simple motion compensation on the activity domain, N and M values are dynamically determined

Keywords

adaptive signal processing; brightness; code standards; data compression; image sequences; motion compensation; telecommunication standards; video coding; GOP length; MPEG encoding algorithm; activity domain; coding efficiency; group of picture; luminance activity; macroblock characteristics; motion compensation; picture quality; scene adaptive dynamic GOP structure; video coding; video compression; video sequences; Change detection algorithms; Encoding; Internet; Laboratories; Layout; Motion compensation; Motion detection; Motion estimation; Transform coding; Video compression;

fLanguage

English

Publisher

ieee

Conference_Titel

Multimedia Signal Processing, 1999 IEEE 3rd Workshop on

Conference_Location

Copenhagen

Print_ISBN

0-7803-5610-1

Type

conf

DOI

10.1109/MMSP.1999.793851

Filename

793851