Title :
New studies on adaptive predictive coding of images using multiplicative autoregressive models
Author :
Das, M. ; Loh, N.K.
Author_Institution :
Dept. of Electr. & Syst. Eng., Oakland Univ., Rochester, MI, USA
Abstract :
Adaptive predictive coding of digitized images using multiplicative autoregressive (MAR) models is discussed. Three MAR models, designated as nonsymmetric half plane (NSHP) (3×3), quarter plane (QP) (2×3), and NSHP (2×3), are studied in detail. Results demonstrate that both NSHP (3×3) and QP (2×3) are very effective for coding and transmission of such images at bit rates less than one bit per pixel. Comparison with a 2-D model that has a quarter plane 2×2 region of support indicates that the performance of NSHP (3×3) and QP (2×3) either exceeds or matches that of the former. The proposed scheme has the following advantages. First, the signal-to noise ratio and the bit rate attainable with this method are comparable to those of two-dimensional (2-D) predictive techniques. Second, unlike the 2-D schemes, the stability of the predictive coder is easily guaranteed
Keywords :
encoding; filtering and prediction theory; picture processing; statistical analysis; 1D models; MAR models; NSHP (2×3); NSHP (3×3); QP (2×3); adaptive predictive coding; digitized images; multiplicative autoregressive models; nonsymmetric half plane; quarter plane; Image coding; Image reconstruction; Linear predictive coding; Polynomials; Predictive coding; Predictive models; Signal to noise ratio; Stability; Systems engineering and theory; Two dimensional displays;
Conference_Titel :
Computer and Communication Systems, 1990. IEEE TENCON'90., 1990 IEEE Region 10 Conference on
Print_ISBN :
0-87942-556-3
DOI :
10.1109/TENCON.1990.152553
