Title :
Transcoder system with high processing efficiency to support simultaneous multirate output
Author :
Nagayoshi, I. ; Wakui, M. ; Hanamura, T. ; Tominaga, H.
Author_Institution :
Waseda Univ., Tokyo, Japan
Abstract :
In this paper, we propose an efficient transcoder architecture to support a simultaneous multirate output. First, we discuss about some architectures to realize this feature. Next, we explain the proposed architecture, it shares not only VLD/IQ but also Q/VLC which have the same quantization step sizes each other. We analyze the numbers of Q/VLC times per one MB to investigate an effect of sharing, and evaluate its computation complexity. From the simulation, that complexity has an upper limit and it can support any numbers of bitstream by 3-6 times complexity than single output.
Keywords :
computational complexity; discrete cosine transforms; transceivers; vector quantisation; complexity; high processing efficiency; quantization; simultaneous multirate output; transcoder system;
Conference_Titel :
Visual Information Engineering, 2003. VIE 2003. International Conference on
Print_ISBN :
0-85296-757-8
DOI :
10.1049/cp:20030534
