TY - GEN
T1 - Learned Neural Iterative Decoding for Lossy Image Compression Systems
AU - Ororbia, Alexander G.
AU - Mali, Ankur
AU - Wu, Jian
AU - O'Connell, Scott
AU - Dreese, William
AU - Miller, David
AU - Giles, C. Lee
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/5/10
Y1 - 2019/5/10
N2 - For lossy image compression systems, we develop an algorithm, iterative refinement, to improve the decoder's reconstruction compared to standard decoding techniques. Specifically, we propose a recurrent neural network approach for nonlinear, iterative decoding. Our decoder, which works with any encoder, employs self-connected memory units that make use of causal and non-causal spatial context information to progressively reduce reconstruction error over a fixed number of steps. We experiment with variants of our estimator and find that iterative refinement consistently creates lower distortion images of higher perceptual quality compared to other approaches. Specifically, on the Kodak Lossless True Color Image Suite, we observe as much as a 0.871 decibel (dB) gain over JPEG, a 1.095 dB gain over JPEG 2000, and a 0.971 dB gain over a competitive neural model.
AB - For lossy image compression systems, we develop an algorithm, iterative refinement, to improve the decoder's reconstruction compared to standard decoding techniques. Specifically, we propose a recurrent neural network approach for nonlinear, iterative decoding. Our decoder, which works with any encoder, employs self-connected memory units that make use of causal and non-causal spatial context information to progressively reduce reconstruction error over a fixed number of steps. We experiment with variants of our estimator and find that iterative refinement consistently creates lower distortion images of higher perceptual quality compared to other approaches. Specifically, on the Kodak Lossless True Color Image Suite, we observe as much as a 0.871 decibel (dB) gain over JPEG, a 1.095 dB gain over JPEG 2000, and a 0.971 dB gain over a competitive neural model.
UR - http://www.scopus.com/inward/record.url?scp=85066316254&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85066316254&partnerID=8YFLogxK
U2 - 10.1109/DCC.2019.00008
DO - 10.1109/DCC.2019.00008
M3 - Conference contribution
AN - SCOPUS:85066316254
T3 - Data Compression Conference Proceedings
SP - 3
EP - 12
BT - Proceedings - DCC 2019
A2 - Marcellin, Michael W.
A2 - Bilgin, Ali
A2 - Storer, James A.
A2 - Serra-Sagrista, Joan
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 Data Compression Conference, DCC 2019
Y2 - 26 March 2019 through 29 March 2019
ER -