Discrete Walsh-Hadamard transform vector quantization for motion-compensated frame difference signal coding

Author

Akansu, Ali N.

Author_Institution

Dept. of Electr. Eng., New Jersey Inst. of Technol., Newark, NJ

fYear

1989

Firstpage

1862

Abstract

Theoretical performance analysis and test simulations showed that the DWHT (discrete Walsh-Hadamard transform) is as good as the DCT (discrete cosine transform) for the encoding of low-correlation MCFD (motion-compensated frame difference) signals. However, the straightforward algorithm for the DWHT makes it a better choice than the DCT. The transform vector quantization (TRVQ) technique is employed for low bit rates. It is also observed that the robustness of the VQ (vector quantization) technique for the MCFD signals is much better than that of the VQ of the still frame images

Keywords

data compression; encoding; picture processing; transforms; DCT; discrete Walsh-Hadamard transform; discrete cosine transform; encoding; image coding; low bit rates; motion-compensated frame difference signal coding; robustness; transform vector quantization; vector quantization; Analytical models; Bit rate; Discrete cosine transforms; Discrete transforms; Encoding; Motion analysis; Performance analysis; Robustness; Testing; Vector quantization;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1989. ICASSP-89., 1989 International Conference on

Conference_Location

Glasgow

ISSN

1520-6149

Type

conf

DOI

10.1109/ICASSP.1989.266816

Filename

266816