Cargando…

Fast Control for Backlight Power-Saving Algorithm Using Motion Vectors from the Decoded Video Stream

Backlight power-saving algorithms can reduce the power consumption of the display by adjusting the frame pixels with optimal clipping points under some tradeoff criteria. However, the computation for the selected clipping points can be complex. In this paper, a novel algorithm is created to reduce t...

Descripción completa

Detalles Bibliográficos
Autores principales: Chen, Shih-Lun, Chen, Tsung-Yi, Lin, Ting-Lan, Chen, Chiung-An, Lin, Szu-Yin, Chiang, Yu-Liang, Tung, Kun-Hsien, Chiang, Wei-Yuan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9572074/
https://www.ncbi.nlm.nih.gov/pubmed/36236267
http://dx.doi.org/10.3390/s22197170
_version_ 1784810522938441728
author Chen, Shih-Lun
Chen, Tsung-Yi
Lin, Ting-Lan
Chen, Chiung-An
Lin, Szu-Yin
Chiang, Yu-Liang
Tung, Kun-Hsien
Chiang, Wei-Yuan
author_facet Chen, Shih-Lun
Chen, Tsung-Yi
Lin, Ting-Lan
Chen, Chiung-An
Lin, Szu-Yin
Chiang, Yu-Liang
Tung, Kun-Hsien
Chiang, Wei-Yuan
author_sort Chen, Shih-Lun
collection PubMed
description Backlight power-saving algorithms can reduce the power consumption of the display by adjusting the frame pixels with optimal clipping points under some tradeoff criteria. However, the computation for the selected clipping points can be complex. In this paper, a novel algorithm is created to reduce the computation time of the state-of-the-art backlight power-saving algorithms. If the current frame is similar to the previous frame, it is unnecessary to execute the backlight power-saving algorithm for the optimal clipping points, and the derived clipping point from the previous frame can be used for the current frame automatically. In this paper, the motion vector information was used as the measurement of the similarity between adjacent frames, where the generation of the motion vector information requires no extra complexity since it is generated to reconstruct the decoded frame pixels before the display. The experiments showed that the proposed work can reduce the running time of the state-of-the-art methods by 25.21% to 64.22%, while the performances are maintained; the differences with the state-of-the-art methods in PSNR are only 0.02~1.91 dB, and those in power are only −0.001~0.008 W.
format Online
Article
Text
id pubmed-9572074
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-95720742022-10-17 Fast Control for Backlight Power-Saving Algorithm Using Motion Vectors from the Decoded Video Stream Chen, Shih-Lun Chen, Tsung-Yi Lin, Ting-Lan Chen, Chiung-An Lin, Szu-Yin Chiang, Yu-Liang Tung, Kun-Hsien Chiang, Wei-Yuan Sensors (Basel) Article Backlight power-saving algorithms can reduce the power consumption of the display by adjusting the frame pixels with optimal clipping points under some tradeoff criteria. However, the computation for the selected clipping points can be complex. In this paper, a novel algorithm is created to reduce the computation time of the state-of-the-art backlight power-saving algorithms. If the current frame is similar to the previous frame, it is unnecessary to execute the backlight power-saving algorithm for the optimal clipping points, and the derived clipping point from the previous frame can be used for the current frame automatically. In this paper, the motion vector information was used as the measurement of the similarity between adjacent frames, where the generation of the motion vector information requires no extra complexity since it is generated to reconstruct the decoded frame pixels before the display. The experiments showed that the proposed work can reduce the running time of the state-of-the-art methods by 25.21% to 64.22%, while the performances are maintained; the differences with the state-of-the-art methods in PSNR are only 0.02~1.91 dB, and those in power are only −0.001~0.008 W. MDPI 2022-09-21 /pmc/articles/PMC9572074/ /pubmed/36236267 http://dx.doi.org/10.3390/s22197170 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Chen, Shih-Lun
Chen, Tsung-Yi
Lin, Ting-Lan
Chen, Chiung-An
Lin, Szu-Yin
Chiang, Yu-Liang
Tung, Kun-Hsien
Chiang, Wei-Yuan
Fast Control for Backlight Power-Saving Algorithm Using Motion Vectors from the Decoded Video Stream
title Fast Control for Backlight Power-Saving Algorithm Using Motion Vectors from the Decoded Video Stream
title_full Fast Control for Backlight Power-Saving Algorithm Using Motion Vectors from the Decoded Video Stream
title_fullStr Fast Control for Backlight Power-Saving Algorithm Using Motion Vectors from the Decoded Video Stream
title_full_unstemmed Fast Control for Backlight Power-Saving Algorithm Using Motion Vectors from the Decoded Video Stream
title_short Fast Control for Backlight Power-Saving Algorithm Using Motion Vectors from the Decoded Video Stream
title_sort fast control for backlight power-saving algorithm using motion vectors from the decoded video stream
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9572074/
https://www.ncbi.nlm.nih.gov/pubmed/36236267
http://dx.doi.org/10.3390/s22197170
work_keys_str_mv AT chenshihlun fastcontrolforbacklightpowersavingalgorithmusingmotionvectorsfromthedecodedvideostream
AT chentsungyi fastcontrolforbacklightpowersavingalgorithmusingmotionvectorsfromthedecodedvideostream
AT lintinglan fastcontrolforbacklightpowersavingalgorithmusingmotionvectorsfromthedecodedvideostream
AT chenchiungan fastcontrolforbacklightpowersavingalgorithmusingmotionvectorsfromthedecodedvideostream
AT linszuyin fastcontrolforbacklightpowersavingalgorithmusingmotionvectorsfromthedecodedvideostream
AT chiangyuliang fastcontrolforbacklightpowersavingalgorithmusingmotionvectorsfromthedecodedvideostream
AT tungkunhsien fastcontrolforbacklightpowersavingalgorithmusingmotionvectorsfromthedecodedvideostream
AT chiangweiyuan fastcontrolforbacklightpowersavingalgorithmusingmotionvectorsfromthedecodedvideostream