Abstract
We describe a new approach to image sequence coding based upon variable-rate entropy-constrained subband coding (ECSBC) and, furthermore, develop the corresponding practical implementation of the ECSBC scheme for fixed-rate channels by extending recently developed adaptive entropy-coded quantization (AEC) techniques. Although the entropy-constrained design of subband coding systems provides improved coding efficiency compared to level-constrained design approaches, the resulting coding system generates variable-rate outputs which must be buffered before fixed-rate transmission. In this case, the finite buffer, however large, that interfaces the encoder and the channel will eventually overflow or underflow resulting in a catastrophic loss of encoder-decoder synchronism with an associated large amount of distortion. A buffer-adaptive arithmetic-coded implementation of the ECSBC scheme, called adaptive entropy-coded subband coding (ECSBC/AEC), is described to completely eliminate the associated encoder buffer overflow/underflow problems, even with a very small encoder buffer. We demonstrate that the ECSBC/AEC scheme operating on real-world image sequences performs very close to the original ECSBC scheme whose performance is achievable only with an encoder buffer of infinite size. Moreover, promising results on the low-rate interframe coding of real-world monochrome and color image sequences are presented using the ECSBC/AEC scheme combined with a hierarchical motion-compensated prediction method.
| Original language | English |
|---|---|
| Pages (from-to) | 975-987 |
| Number of pages | 13 |
| Journal | IEEE Transactions on Communications |
| Volume | 41 |
| Issue number | 6 |
| DOIs | |
| State | Published - Jun 1 1993 |
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ASJC Scopus subject areas
- Computer Networks and Communications
- Electrical and Electronic Engineering
Cite this
Adaptive entropy-coded subband coding of image sequences. / Kim, Yong Han; Modestino, James W.
In: IEEE Transactions on Communications, Vol. 41, No. 6, 01.06.1993, p. 975-987.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Adaptive entropy-coded subband coding of image sequences
AU - Kim, Yong Han
AU - Modestino, James W.
PY - 1993/6/1
Y1 - 1993/6/1
N2 - We describe a new approach to image sequence coding based upon variable-rate entropy-constrained subband coding (ECSBC) and, furthermore, develop the corresponding practical implementation of the ECSBC scheme for fixed-rate channels by extending recently developed adaptive entropy-coded quantization (AEC) techniques. Although the entropy-constrained design of subband coding systems provides improved coding efficiency compared to level-constrained design approaches, the resulting coding system generates variable-rate outputs which must be buffered before fixed-rate transmission. In this case, the finite buffer, however large, that interfaces the encoder and the channel will eventually overflow or underflow resulting in a catastrophic loss of encoder-decoder synchronism with an associated large amount of distortion. A buffer-adaptive arithmetic-coded implementation of the ECSBC scheme, called adaptive entropy-coded subband coding (ECSBC/AEC), is described to completely eliminate the associated encoder buffer overflow/underflow problems, even with a very small encoder buffer. We demonstrate that the ECSBC/AEC scheme operating on real-world image sequences performs very close to the original ECSBC scheme whose performance is achievable only with an encoder buffer of infinite size. Moreover, promising results on the low-rate interframe coding of real-world monochrome and color image sequences are presented using the ECSBC/AEC scheme combined with a hierarchical motion-compensated prediction method.
AB - We describe a new approach to image sequence coding based upon variable-rate entropy-constrained subband coding (ECSBC) and, furthermore, develop the corresponding practical implementation of the ECSBC scheme for fixed-rate channels by extending recently developed adaptive entropy-coded quantization (AEC) techniques. Although the entropy-constrained design of subband coding systems provides improved coding efficiency compared to level-constrained design approaches, the resulting coding system generates variable-rate outputs which must be buffered before fixed-rate transmission. In this case, the finite buffer, however large, that interfaces the encoder and the channel will eventually overflow or underflow resulting in a catastrophic loss of encoder-decoder synchronism with an associated large amount of distortion. A buffer-adaptive arithmetic-coded implementation of the ECSBC scheme, called adaptive entropy-coded subband coding (ECSBC/AEC), is described to completely eliminate the associated encoder buffer overflow/underflow problems, even with a very small encoder buffer. We demonstrate that the ECSBC/AEC scheme operating on real-world image sequences performs very close to the original ECSBC scheme whose performance is achievable only with an encoder buffer of infinite size. Moreover, promising results on the low-rate interframe coding of real-world monochrome and color image sequences are presented using the ECSBC/AEC scheme combined with a hierarchical motion-compensated prediction method.
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U2 - 10.1109/26.231919
DO - 10.1109/26.231919
M3 - Article
AN - SCOPUS:0027611761
VL - 41
SP - 975
EP - 987
JO - IEEE Transactions on Communications
JF - IEEE Transactions on Communications
SN - 0096-1965
IS - 6
ER -