Title :
TV signals effective coding for the satellite videoconferencing systems
Author :
Kharatishvili, N. ; Zumburidze, O. ; Tcheidze, I.
Author_Institution :
Georgian Tech. Univ., Tbilisi, Georgia
Abstract :
For satellite videoconferencing systems the problems of reducing the transmission speed to the values corresponding the CCIR Recommendations H.120 and H.130 on the basis of pyramid coding and vector quantization (VQ) coding methods and their combination with other effective TV signals coding methods are presented. Some methods of nonorthogonal (Laplacian pyramid) and orthogonal pyramid coding are investigated
Keywords :
satellite communication; telecommunication standards; teleconferencing; vector quantisation; video coding; CCIR Recommendations H.120; CCIR Recommendations H.130; Laplacian pyramid coding; TV signals coding; VQ; coding methods; nonorthogonal pyramid coding; orthogonal pyramid coding; satellite videoconferencing systems; transmission speed reduction; vector quantization; Discrete cosine transforms; Image coding; Image restoration; Laplace equations; Motion estimation; Satellite broadcasting; Signal restoration; TV; Teleconferencing; Vector quantization;
Conference_Titel :
Satellite Communications, 1994. ICSC'94., Proceedings of International Conference on
Conference_Location :
Moscow
Print_ISBN :
0-7803-2514-1
DOI :
10.1109/ICSC.1994.523111
