TY - JOUR
T1 - Use of ARMA Predictors in the Differential Encoding of Images
AU - Sayood, Khalid
AU - Schekall, Stanley M.
PY - 1988/11
Y1 - 1988/11
N2 - Differential pulse code modulation (DPCM) has long been a popular method of data compression for speech. It has not been as popular for images partly because of its poor edge performance. This is true even for adaptive DPCM (ADPCM). A recent paper by Gibson provides a clue to the reason for this shortcoming. His analysis is used to motivate the design of backward adaptive ARMA predictors for use in differential encoding of images. Simulations using these predictors validate the approach, as these systems show significant objective gains as well as noticeable subjective improvements in the edge performance. An added advantage to using this approach is the improvement in noisy-channel performance.
AB - Differential pulse code modulation (DPCM) has long been a popular method of data compression for speech. It has not been as popular for images partly because of its poor edge performance. This is true even for adaptive DPCM (ADPCM). A recent paper by Gibson provides a clue to the reason for this shortcoming. His analysis is used to motivate the design of backward adaptive ARMA predictors for use in differential encoding of images. Simulations using these predictors validate the approach, as these systems show significant objective gains as well as noticeable subjective improvements in the edge performance. An added advantage to using this approach is the improvement in noisy-channel performance.
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U2 - 10.1109/29.9021
DO - 10.1109/29.9021
M3 - Article
AN - SCOPUS:0024104296
VL - 36
SP - 1791
EP - 1795
JO - IEEE Transactions on Acoustics, Speech, and Signal Processing
JF - IEEE Transactions on Acoustics, Speech, and Signal Processing
SN - 1053-587X
IS - 11
ER -