TY - GEN
T1 - Visibility thresholds for quantization distortion in JPEG2000
AU - Oh, Han
AU - Bilgin, Ali
AU - Marcellin, Michael W.
PY - 2009
Y1 - 2009
N2 - Visibility thresholds play an important role in finding appropriate quantization step sizes in image and video compression systems. In this paper we present a new method of measuring visibility thresholds for quantization distortion in JPEG2000. A quantization distortion model for each subband is developed based on the statistical characteristics of wavelet coefficients and the dead-zone quantizer of JPEG2000. Thresholds obtained from these quantization distortion models are image-adaptive and ensure visually lossless coding with low computational burden.
AB - Visibility thresholds play an important role in finding appropriate quantization step sizes in image and video compression systems. In this paper we present a new method of measuring visibility thresholds for quantization distortion in JPEG2000. A quantization distortion model for each subband is developed based on the statistical characteristics of wavelet coefficients and the dead-zone quantizer of JPEG2000. Thresholds obtained from these quantization distortion models are image-adaptive and ensure visually lossless coding with low computational burden.
KW - Contrast sensitivity function
KW - Human visual system
KW - Visibility threshold
KW - Visually lossless coding
UR - http://www.scopus.com/inward/record.url?scp=70350782369&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=70350782369&partnerID=8YFLogxK
U2 - 10.1109/QOMEX.2009.5246948
DO - 10.1109/QOMEX.2009.5246948
M3 - Conference contribution
AN - SCOPUS:70350782369
SN - 9781424443703
T3 - 2009 International Workshop on Quality of Multimedia Experience, QoMEx 2009
SP - 228
EP - 232
BT - 2009 International Workshop on Quality of Multimedia Experience, QoMEx 2009
T2 - 2009 International Workshop on Quality of Multimedia Experience, QoMEx 2009
Y2 - 29 July 2009 through 31 July 2009
ER -