Title :
Detection and elimination of 2-D transmission error patterns in DPCM images
Author :
Chang, Chi-Yuan ; Jin-Jang Loon
Author_Institution :
Inst. of Comput Sci. & Inf. Eng., Nat. Chung Cheng Univ., Chiayi, Taiwan
fDate :
10/1/1996 12:00:00 AM
Abstract :
The paper studies two methods for detecting and removing channel error patterns in images transmitted by two-dimensional differential-pulse-code-modulation (2-D DCM) with fixed-length words. The methods are based on statistical classification and filtering procedures. For the predictions A+(C-B)/2 and A+(D-B)/2 in combination with 4-b DPCM, it is demonstrated experimentally by computer simulation that the effect of channel errors can effectively be reduced at bit-error rates (BERs) up to approximately 0.1%
Keywords :
coding errors; differential pulse code modulation; error statistics; filtering theory; image classification; image coding; prediction theory; 2D transmission error patterns; 4 bit; BER; DPCM images; bit error rates; channel error patterns; computer simulation; differential pulse code modulation; filtering procedures; fixed-length words; image coding; statistical classification; Bit error rate; Channel coding; Computer errors; Computer simulation; Filtering; Helium; Leak detection; Phase change materials; Testing; Two dimensional displays;
Journal_Title :
Communications, IEEE Transactions on
