Fast algorithms for compositing multi-way compressed video

Author

Maojun, Zhang ; Xiaofeng, Hu ; Bing, Yang ; Xishu, Ku

Author_Institution

Dept. of Syst. Eng. & Math., Nat. Univ. of Defense Technol., Changsha, China

fYear

1996

fDate

17-23 Jun 1996

Firstpage

540

Lastpage

543

Abstract

This paper presents fast algorithms for compositing two or more videos which have been compressed using the JPEG (Joint Picture Experts Group) compression standard. Their performance is improved over traditional methods by processing compressed video data in the frequency domain, avoiding the DCT (discrete cosine transform) and IDCT (inverse DCT). Since the algorithms are built on a new theoretical basis, the computational speedup and memory usage efficiency are further improved over existing fast algorithms

Keywords

data compression; multimedia communication; software performance evaluation; telecommunication computing; telecommunication standards; video coding; JPEG compression standard; computational speedup; fast algorithms; frequency-domain data compression; memory usage efficiency; multi-way compressed video compositing; performance; Computer networks; Discrete cosine transforms; IP networks; Image coding; Multimedia computing; Pixel; Streaming media; Transform coding; Video compression; Videoconference;

fLanguage

English

Publisher

ieee

Conference_Titel

Multimedia Computing and Systems, 1996., Proceedings of the Third IEEE International Conference on

Conference_Location

Hiroshima

Print_ISBN

0-8186-7438-5

Type

conf

DOI

10.1109/MMCS.1996.535019

Filename

535019