Title :
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
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;
Conference_Titel :
Multimedia Computing and Systems, 1996., Proceedings of the Third IEEE International Conference on
Conference_Location :
Hiroshima
Print_ISBN :
0-8186-7438-5
DOI :
10.1109/MMCS.1996.535019
