Orthogonal and nonorthogonal pyramid building in television image coding

Nodar G. Kharatishvili; Joseph Ronsin; Xu Shengwang; Irina M. Chkheidze

doi:10.1117/12.131403

1 November 1992 Orthogonal and nonorthogonal pyramid building in television image coding

Nodar G. Kharatishvili, Joseph Ronsin, Xu Shengwang, Irina M. Chkheidze

Proceedings Volume 1818, Visual Communications and Image Processing '92; (1992) https://doi.org/10.1117/12.131403
Event: Applications in Optical Science and Engineering, 1992, Boston, MA, United States

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.

Citation Download Citation

Nodar G. Kharatishvili, Joseph Ronsin, Xu Shengwang, and Irina M. Chkheidze "Orthogonal and nonorthogonal pyramid building in television image coding", Proc. SPIE 1818, Visual Communications and Image Processing '92, (1 November 1992); https://doi.org/10.1117/12.131403

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