Title :
Frequency scalable video coding using the MDCT
Author :
Johnson, A.W. ; Princen, J. ; Chan, M.H.
Author_Institution :
Telecom Australia Res. Labs., Australia
Abstract :
Efficient video coding incorporating motion compensation and overlapped transforms requires different coding architectures and methods of motion estimation to those used in traditional DCT block based coding schemes. In this paper a transform domain motion estimation procedure is proposed for the MDCT. This method of motion estimation, while performed in the spatial domain, is equivalent to minimising the sum square error of transform coefficients. The application of the MDCT to frequency scalable video coding is investigated. A performance advantage is achieved over an equivalent DCT based coder for both the reconstructed low resolution and high resolution sequences of an open loop frequency scalable video coder
Keywords :
discrete cosine transforms; image reconstruction; image resolution; image sequences; motion compensation; motion estimation; transform coding; video codecs; video coding; MDCT; coding architectures; frequency scalable video coding; high resolution sequences; image reconstruction; image resolution; low resolution sequences; modified DCT; motion compensation; motion estimation; open loop video coder; overlapped transforms; spatial domain; sum square error; transform coefficients; transform domain motion estimation; Band pass filters; Discrete cosine transforms; Discrete transforms; Frequency; Low pass filters; Motion compensation; Motion estimation; Prototypes; Telecommunications; Video coding;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1994. ICASSP-94., 1994 IEEE International Conference on
Conference_Location :
Adelaide, SA
Print_ISBN :
0-7803-1775-0
DOI :
10.1109/ICASSP.1994.389467
