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Low Complexity Video Coding Based on Spatial Resolution Adaptation

Abstract: 

In this paper, a novel spatial resolution adaptation approach for video compression is proposed. Its ability to dynamically apply downsampling to frames exhibiting low spatial detail delivers improved rate distortion performance, together with a reduction in computational complexity of the encoding process. This method is based on an experimental investigation of the dependence between the QP threshold, which determines when to encode lower resolution frames, and the distortion obtained after downsampling/upsampling. The proposed approach is integrated with the High Efficiency Video Coding (HEVC) reference codec for intra coding, and evaluated on 15 high-resolution test sequences with varying levels of spatial detail. The results show a promising average bitrate savings of approximately 4% (B-D measurements), and significant complexity reduction (29% on average).

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Paper Details

Authors:
Mariana Afonso, Fan Zhang, Angeliki Katsenou, Dimitris Agrafiotis, David R. Bull
Submitted On:
12 September 2017 - 10:49am
Short Link:
Type:
Poster
Event:
Presenter's Name:
Mariana Afonso
Paper Code:
2451
Document Year:
2017
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Document Files

Poster_ICIP2017.pdf

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[1] Mariana Afonso, Fan Zhang, Angeliki Katsenou, Dimitris Agrafiotis, David R. Bull, "Low Complexity Video Coding Based on Spatial Resolution Adaptation", IEEE SigPort, 2017. [Online]. Available: http://sigport.org/1940. Accessed: Sep. 24, 2017.
@article{1940-17,
url = {http://sigport.org/1940},
author = {Mariana Afonso; Fan Zhang; Angeliki Katsenou; Dimitris Agrafiotis; David R. Bull },
publisher = {IEEE SigPort},
title = {Low Complexity Video Coding Based on Spatial Resolution Adaptation},
year = {2017} }
TY - EJOUR
T1 - Low Complexity Video Coding Based on Spatial Resolution Adaptation
AU - Mariana Afonso; Fan Zhang; Angeliki Katsenou; Dimitris Agrafiotis; David R. Bull
PY - 2017
PB - IEEE SigPort
UR - http://sigport.org/1940
ER -
Mariana Afonso, Fan Zhang, Angeliki Katsenou, Dimitris Agrafiotis, David R. Bull. (2017). Low Complexity Video Coding Based on Spatial Resolution Adaptation. IEEE SigPort. http://sigport.org/1940
Mariana Afonso, Fan Zhang, Angeliki Katsenou, Dimitris Agrafiotis, David R. Bull, 2017. Low Complexity Video Coding Based on Spatial Resolution Adaptation. Available at: http://sigport.org/1940.
Mariana Afonso, Fan Zhang, Angeliki Katsenou, Dimitris Agrafiotis, David R. Bull. (2017). "Low Complexity Video Coding Based on Spatial Resolution Adaptation." Web.
1. Mariana Afonso, Fan Zhang, Angeliki Katsenou, Dimitris Agrafiotis, David R. Bull. Low Complexity Video Coding Based on Spatial Resolution Adaptation [Internet]. IEEE SigPort; 2017. Available from : http://sigport.org/1940