Backlight dimming in power-aware mobile displays

This paper presents a temporally-aware backlight scaling (TABS) technique for video streams. The goal is to maximize energy saving in the display system by means of dynamic backlight dimming subject to a user-specified tolerance on the video distortion. The video distortion itself comprises of (i) a...

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Vydáno v:2006 43rd ACM/IEEE Design Automation Conference s. 604 - 607
Hlavní autoři: Iranli, Ali, Lee, Wonbok, Pedram, Massoud
Médium: Konferenční příspěvek
Jazyk:angličtina
Vydáno: New York, NY, USA ACM 24.07.2006
IEEE
Edice:ACM Conferences
Témata:
Algorithms
Backlight scaling
Control systems
Encoding
Energy consumption
Hardware
Hardware > Communication hardware, interfaces and storage > Displays and imagers
Human Factors
Human Visual System
Humans
Lamps
LCDs
Liquid crystal displays
Measurement
Pixel
Streaming media
Visual system
human visual system
LCDs
backlight scaling
ISBN:1595933816, 9781595933812
ISSN:0738-100X
On-line přístup:Získat plný text
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Abstract This paper presents a temporally-aware backlight scaling (TABS) technique for video streams. The goal is to maximize energy saving in the display system by means of dynamic backlight dimming subject to a user-specified tolerance on the video distortion. The video distortion itself comprises of (i) an intra-frame (spatial) distortion component due to frame-sensitive backlight scaling and transmittance function tuning and (ii) an inter-frame (temporal) distortion component due to large-step backlight dimming across multiple frames and modulated by the physiological characteristics of the human visual system. The proposed backlight scaling technique is capable of efficiently computing the flickering effect online and subsequently using a measure of the temporal distortion to appropriately adjust the slack on the intra-frame spatial distortion. The proposed technique has been implemented on the Apollo Testbed II hardware platform. Actual current measurements on this platform demonstrate the superiority of TABS compared to previous backlight dimming techniques.
AbstractList This paper presents a temporally-aware backlight scaling (TABS) technique for video streams. The goal is to maximize energy saving in the display system by means of dynamic backlight dimming subject to a user-specified tolerance on the video distortion. The video distortion itself comprises of (i) an intra-frame (spatial) distortion component due to frame-sensitive backlight scaling and transmittance function tuning and (ii) an inter-frame (temporal) distortion component due to large-step backlight dimming across multiple frames and modulated by the physiological characteristics of the human visual system. The proposed backlight scaling technique is capable of efficiently computing the flickering effect online and subsequently using a measure of the temporal distortion to appropriately adjust the slack on the intra-frame spatial distortion. The proposed technique has been implemented on the Apollo testbed II hardware platform. Actual current measurements on this platform demonstrate the superiority of TABS compared to previous backlight dimming techniques.
Author Lee, Wonbok
Pedram, Massoud
Iranli, Ali
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Keywords human visual system
LCDs
backlight scaling
Language English
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Snippet This paper presents a temporally-aware backlight scaling (TABS) technique for video streams. The goal is to maximize energy saving in the display system by...
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StartPage 604
SubjectTerms Algorithms
Backlight scaling
Control systems
Encoding
Energy consumption
Hardware
Hardware -- Communication hardware, interfaces and storage -- Displays and imagers
Human Factors
Human Visual System
Humans
Lamps
LCDs
Liquid crystal displays
Measurement
Pixel
Streaming media
Visual system
Title Backlight dimming in power-aware mobile displays
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