Title :
Control strategy of subjective video quality over error-prone channels
Author :
Bin, Song ; Yilin, Chang
Author_Institution :
Sch. of Telecommun. Eng., Xidian Univ., Xi´´an, China
Abstract :
A control strategy for subjective video quality in a bit-error environment is proposed. In the strategy, block effects due to coarser quantization or bit-error and frame rate are considered as two main factors impacting on subjective video quality. Thereby, minimum frame rate and maximum quantization parameter are suggested to ensure picture quality. The control strategy is a trade-off-between removing the block effect and reducing the flicker artifact of reconstructed images when more bits are required for error correction. Simulation results show that the subjective video quality is obviously improved
Keywords :
error correction codes; error statistics; image reconstruction; image sequences; minimax techniques; mobile radio; packet radio networks; quantisation (signal); telecommunication control; video coding; visual communication; bit-error environment; block effects; control strategy; error correction; error-prone channels; flicker artifact; maximum quantization parameter; minimum frame rate; picture quality; reconstructed images; subjective video quality; Bandwidth; Communication system control; Error correction; Frequency; IP networks; Image reconstruction; Quantization; Telecommunication control; Video compression; Wireless communication;
Conference_Titel :
Communication Technology Proceedings, 2000. WCC - ICCT 2000. International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-6394-9
DOI :
10.1109/ICCT.2000.889349
