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Proceedings Paper

Orthogonal and nonorthogonal pyramid building in television image coding
Author(s): Nodar G. Kharatishvili; Joseph Ronsin; Xu Shengwang; Irina M. Chkheidze
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Paper Abstract

The paper considers orthogonal and non-orthogonal pyramid building for television image coding. Non-orthogonal structures of Laplacian type on the basis of two and three dimensional Laplacian pyramid with three levels is studied. Effectiveness using of quincunx subsampling in the frame with optimal quantization is shown. Building of 'branched pyramid' that enables expanding coefficient compression is proposed. Results of pyramid coding of transformant extracted after linear orthogonal transformation of Walsh original TV images are given.

Paper Details

Date Published: 1 November 1992
PDF: 14 pages
Proc. SPIE 1818, Visual Communications and Image Processing '92, (1 November 1992); doi: 10.1117/12.131403
Show Author Affiliations
Nodar G. Kharatishvili, Technical Univ. of Georgia (Georgia)
Joseph Ronsin, Institut National des Sciences Appliquees (France)
Xu Shengwang, Technical Univ. of Georgia (Georgia)
Irina M. Chkheidze, Technical Univ. of Georgia (Georgia)


Published in SPIE Proceedings Vol. 1818:
Visual Communications and Image Processing '92
Petros Maragos, Editor(s)

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