Title :
Data compression in the digital TV
Author :
Michailov, B.A. ; Istomin, B.K. ; Koyokin, A.I.
Author_Institution :
Res. Inst. of Microdevices, Moscow, Russia
Abstract :
The article examines the problem of video data compression as a means of telecommunication networks optimisation. The main practical problem is the point-to-point conformity of the restored and original images. The methods used to solve this problem can be divided into two groups. One group is based on integrated conversions (discrete cosine transform, Walsh transform, etc.) and the other group enables data compression without integrated conversions. Video signal compression in the first group is accompanied inevitably by quantization, and threshold processing of its components. Within the second group we consider an adaptive sampling-local differential coding video data compression method for use in digital TV systems
Keywords :
adaptive codes; adaptive signal processing; data compression; digital television; image sampling; video coding; Walsh transform; adaptive sampling; digital TV systems; discrete cosine transform; integrated conversions; local differential coding; quantization; telecommunication networks optimisation; threshold processing; video data compression; video signal compression; Data compression; Digital TV; Discrete cosine transforms; Discrete transforms; Image coding; Image converters; Image restoration; Signal processing; Signal restoration; Video compression;
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.1994.523113
