Overlapping block transform for offset-sampled image compression

Yoshitaka Morikawa; Nobumoto Yamane; Hiroshi Hamada

doi:10.1117/12.50272

1 November 1991 Overlapping block transform for offset-sampled image compression

Yoshitaka Morikawa, Nobumoto Yamane, Hiroshi Hamada

Proceedings Volume 1605, Visual Communications and Image Processing '91: Visual Communication; (1991) https://doi.org/10.1117/12.50272
Event: Visual Communications, '91, 1991, Boston, MA, United States

Abstract

In this paper, an overlapping block transform coding for offset-sampled image compression, called OS-OBT, is proposed. First, OS-OBT is developed from the theory of frequency analysis\synthesis. In the second, a fast algorithm for OS-OBT is devised, which is twice faster than the usual DOT. In the last, simulations demonstrate that coding performance of OS-OBT is superior to that of DOT and block artifacts decrease in OS-OBT.

Citation Download Citation

Yoshitaka Morikawa, Nobumoto Yamane, and Hiroshi Hamada "Overlapping block transform for offset-sampled image compression", Proc. SPIE 1605, Visual Communications and Image Processing '91: Visual Communication, (1 November 1991); https://doi.org/10.1117/12.50272

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