Sorry, you need to enable JavaScript to visit this website.

facebooktwittermailshare

Impact Analysis of Baseband Quantizer on Coding Efficiency for HDR Video

Abstract: 

Digitally acquired high dynamic range (HDR) video baseband signal can take 10 to 12 bits per color channel. It is economically important to be able to reuse the legacy 8 or 10-bit video codecs to efficiently compress the HDR video. Linear or nonlinear mapping on the intensity can be applied to the baseband signal to reduce the dynamic range before the signal is sent to the codec, and we refer to this range reduction step as a baseband quantization. We show analytically and verify using test sequences that the use of the baseband quantizer lowers the coding efficiency. Experiments show that as the baseband quantizer is strengthened by 1.6 bits, the drop of PSNR at a high bitrate is up to 1.60dB. Our result suggests that in order to achieve high coding efficiency, information reduction of videos in terms of quantization error should be introduced in the video codec instead of on the baseband signal.

Download/view the paper on IEEEXplore:

http://ieeexplore.ieee.org/document/7529121/

Full citation of the paper:

Chau-Wai Wong, Guan-Ming Su, and Min Wu, “Impact analysis of baseband quantizer on coding efficiency for HDR video,” IEEE Signal Processing Letters (SPL), vol.23, no.10, pp.1354–1358, Oct. 2016.

up
0 users have voted:

Paper Details

Authors:
Guan-Ming Su
Submitted On:
4 March 2017 - 10:36pm
Short Link:
Type:
Research Manuscript
Document Year:
2016
Cite

Document Files

Download the postprint dated March 08, 2016

(421)

Download the postprint dated July 30, 2016 (most up-to-date)

(674)

Download the poster (most up-to-date)

(304)

Subscribe

[1] Guan-Ming Su, "Impact Analysis of Baseband Quantizer on Coding Efficiency for HDR Video", IEEE SigPort, 2016. [Online]. Available: http://sigport.org/609. Accessed: Jul. 11, 2020.
@article{609-16,
url = {http://sigport.org/609},
author = {Guan-Ming Su },
publisher = {IEEE SigPort},
title = {Impact Analysis of Baseband Quantizer on Coding Efficiency for HDR Video},
year = {2016} }
TY - EJOUR
T1 - Impact Analysis of Baseband Quantizer on Coding Efficiency for HDR Video
AU - Guan-Ming Su
PY - 2016
PB - IEEE SigPort
UR - http://sigport.org/609
ER -
Guan-Ming Su. (2016). Impact Analysis of Baseband Quantizer on Coding Efficiency for HDR Video. IEEE SigPort. http://sigport.org/609
Guan-Ming Su, 2016. Impact Analysis of Baseband Quantizer on Coding Efficiency for HDR Video. Available at: http://sigport.org/609.
Guan-Ming Su. (2016). "Impact Analysis of Baseband Quantizer on Coding Efficiency for HDR Video." Web.
1. Guan-Ming Su. Impact Analysis of Baseband Quantizer on Coding Efficiency for HDR Video [Internet]. IEEE SigPort; 2016. Available from : http://sigport.org/609