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Scalable trellis quantization for JPEG XS

Abstract: 

Trellis quantization as structured vector quantizer is able to improve
the rate-distortion performance of traditional scalar quantizers. As such,
it has found its way into the JPEG~2000 standard, and also recently as an
option in HEVC. In this paper, a trellis quantization option for JPEG XS is
considered and analyzed; JPEG~XS is a low-complexity, low-latency high-speed
"mezzanine" codec for Video over IP transmission in professional
production environments and industrial applications where high compression
rates are of lesser importance than visual lossless compression at high
speed.

A particular challenge of trellis quantization is to make it compatible with
applications where sharp rate thresholds have to be satisfied, such as in
JPEG~2000 and JPEG~XS. While the JPEG~2000 standard originally proposes a
Lagrangian "a priori" rate allocation that is based on statistical models,
such methods are less suitable for JPEG~XS which only has a very small
prefetch window of less than 30 lines available to drive its rate
allocation. In this paper, a simple trellis quantization option for JPEG~XS
is proposed that is compatible with the hard-bounds rate-allocation
requirements of this coding standard.

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Paper Details

Authors:
Submitted On:
19 March 2020 - 12:35pm
Short Link:
Type:
Poster
Event:
Presenter's Name:
Thomas Richter
Session:
Posters
Document Year:
2020
Cite

Document Files

JPEGXS-Trellis.pdf

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[1] , "Scalable trellis quantization for JPEG XS", IEEE SigPort, 2020. [Online]. Available: http://sigport.org/5005. Accessed: Mar. 30, 2020.
@article{5005-20,
url = {http://sigport.org/5005},
author = { },
publisher = {IEEE SigPort},
title = {Scalable trellis quantization for JPEG XS},
year = {2020} }
TY - EJOUR
T1 - Scalable trellis quantization for JPEG XS
AU -
PY - 2020
PB - IEEE SigPort
UR - http://sigport.org/5005
ER -
. (2020). Scalable trellis quantization for JPEG XS. IEEE SigPort. http://sigport.org/5005
, 2020. Scalable trellis quantization for JPEG XS. Available at: http://sigport.org/5005.
. (2020). "Scalable trellis quantization for JPEG XS." Web.
1. . Scalable trellis quantization for JPEG XS [Internet]. IEEE SigPort; 2020. Available from : http://sigport.org/5005