Title :
Subband coding of video using adaptive quantization
Author :
Jónsson, Ragnar H. ; Mersereau, Russell M.
Author_Institution :
Sch. of Electr. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
fDate :
30 May-2 Jun 1994
Abstract :
An adaptive video coder is presented. The coder is based on motion compensation and subband coding. The probability distributions of the subband signals are modeled by generalized Gaussian distributions. Quantizer design, bit allocation, and entropy coding are then based on these distribution models. The video coder adapts to changes in signal characteristics by updating the distribution models and redesigning the quantizers and entropy codes
Keywords :
Gaussian distribution; adaptive signal processing; entropy codes; motion compensation; quantisation (signal); video coding; Gaussian distributions; adaptive quantization; adaptive video coder; bit allocation; distribution models update; entropy coding; motion compensation; probability distributions; signal characteristics; subband coding; Algorithm design and analysis; Bit rate; Entropy coding; Filter bank; Gaussian distribution; Motion compensation; Probability distribution; Quantization; Signal design; Testing;
Conference_Titel :
Circuits and Systems, 1994. ISCAS '94., 1994 IEEE International Symposium on
Conference_Location :
London
Print_ISBN :
0-7803-1915-X
DOI :
10.1109/ISCAS.1994.409164
