TY - GEN
T1 - Jpeg2000
T2 - Quality scalability and Windows Of Interest transmission
AU - Serra-Sagrista, Joan
AU - Auli-Llinas, Francesc
PY - 2007
Y1 - 2007
N2 - Quality scalability is one important feature of JPEG2000, used, for instance, in interactive image transmissions to deliver Windows Of Interest (WOI) at increasing qualities. JPEG2000 achieves quality scalability through the use of quality layers, that are constructed during the encoding process by means of rate-distortion optimization techniques. Although quality layers provide optimal rate-distortion representations of the complete image area, their optimality holding WOIs remains to be investigated. This paper evaluates the coding performance of quality layers to hold WOIs; in addition, a novel mechanism for providing competitive quality scalability for WOIs extraction is presented. The proposed mechanism can be applied even when the code-stream contains a single quality layer, it is computationally simple, and experimental results suggest that it may achieve close to optimal results in terms of rate-distortion.
AB - Quality scalability is one important feature of JPEG2000, used, for instance, in interactive image transmissions to deliver Windows Of Interest (WOI) at increasing qualities. JPEG2000 achieves quality scalability through the use of quality layers, that are constructed during the encoding process by means of rate-distortion optimization techniques. Although quality layers provide optimal rate-distortion representations of the complete image area, their optimality holding WOIs remains to be investigated. This paper evaluates the coding performance of quality layers to hold WOIs; in addition, a novel mechanism for providing competitive quality scalability for WOIs extraction is presented. The proposed mechanism can be applied even when the code-stream contains a single quality layer, it is computationally simple, and experimental results suggest that it may achieve close to optimal results in terms of rate-distortion.
KW - JPEG2000 standard
KW - Quality scalability
KW - Rate-distortion optimization
KW - Windows of interest transmission
UR - https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=uab_pure&SrcAuth=WosAPI&KeyUT=WOS:000257172900175&DestLinkType=FullRecord&DestApp=WOS
M3 - Other contribution
SN - 978-1-4244-2109-1
ER -