Title :
A pruning based fast rate control algorithm for MPEG coding
Author :
Venkatesh, T.G. ; Srinivasan, S.
Author_Institution :
Sanyo Lsi Technol. India Pte. Ltd., Bangalore, India
Abstract :
Presents a fast rate control scheme that regulates the coded bit stream generated by an MPEG video encoder such that the resulting variable-rate compressed bit stream can be transmitted over a fixed-rate channel. A new bit-rate regulation scheme is proposed using a technique called pruning, in which only the required number of low-frequency coefficients of the discrete cosine transform (DCT) are computed, without the need to compute all the coefficients. The use of the pruning technique reduces the overall execution time of the encoder implementation
Keywords :
data compression; discrete cosine transforms; video coding; MPEG coding; MPEG video encoder; coded bit stream regulation; discrete cosine transform; execution time; fixed-rate channel; low-frequency coefficients; pruning-based bit-rate control algorithm; variable-rate compressed bit stream transmission; Bit rate; Delay; Discrete cosine transforms; Frequency; Image coding; Quantization; Streaming media; Transform coding; Video coding; Video compression;
Conference_Titel :
Computational Intelligence and Multimedia Applications, 1999. ICCIMA '99. Proceedings. Third International Conference on
Conference_Location :
New Delhi
Print_ISBN :
0-7695-0300-4
DOI :
10.1109/ICCIMA.1999.798564