The Experts below are selected from a list of 69 Experts worldwide ranked by ideXlab platform

Byung Cheol Song - One of the best experts on this subject based on the ideXlab platform.

  • block adaptive inter Color Compensation algorithm for rgb 4 4 4 video coding
    IEEE Transactions on Circuits and Systems for Video Technology, 2008
    Co-Authors: Byung Cheol Song
    Abstract:

    RGB Color space has not been regarded as a proper space from a coding point of a view. However, due to the limited visual quality of YCbCr-domain video coding for high-quality applications, RGB-domain video coding is being newly raised. Recently, several methods have been developed to reduce significant redundancy existing between RGB Color planes in an RGB video coder. This paper presents a new algorithm to remove inter-Color redundancy, which is based on a linear model having two parameters, i.e., offset and slope information. Those parameters of one Color component block are derived from the other Color component block. A common coding mode and model parameters optimized for three Color components in a macroblock are obtained simultaneously by minimizing a given cost. Then, a residue for each Color component block is produced using its predictor based on the linear model, and is encoded. The simulation results show that the proposed algorithm noticeably improves the coding efficiency up to over 20% in comparison with H.264 new amendment.

Hai Li - One of the best experts on this subject based on the ideXlab platform.

  • fine grained dynamic voltage scaling on oled display
    Asia and South Pacific Design Automation Conference, 2012
    Co-Authors: Xiang Chen, Jian Zeng, Yiran Chen, Wei Zhang, Hai Li
    Abstract:

    Organic Light Emitting Diode (OLED) has emerged as the new generation display technique for mobile multimedia devices. Compared to existing technologies OLEDs are thinner, brighter, lighter, and cheaper. However, OLED panels are still the biggest contributor to the total power consumption of mobile devices. In this work, we proposed a fine-grained dynamic voltage scaling (FDVS) technique to reduce the OLED power. An OLED panel is partitioned into multiple display areas of which the supply voltage is adaptively adjusted based on the displayed content. A DVS-friendly OLED driver design is also proposed to enhance the Color accuracy of the OLED pixels at the scaled supply voltage. Our experimental results show that compared to the existing global DVS technique, FDVS technique can achieve 25.9%∼43.1% more OLED power saving while maintaining a high image quality measured by Structural Similarity Index (SSIM=0.98). The further analysis shows shat FDVS technology can also effectively reduce the Color remapping cost when Color Compensation is required to improve the image quality of an OLED panel working at a scaled voltage.

Xiang Chen - One of the best experts on this subject based on the ideXlab platform.

  • fine grained dynamic voltage scaling on oled display
    Asia and South Pacific Design Automation Conference, 2012
    Co-Authors: Xiang Chen, Jian Zeng, Yiran Chen, Wei Zhang, Hai Li
    Abstract:

    Organic Light Emitting Diode (OLED) has emerged as the new generation display technique for mobile multimedia devices. Compared to existing technologies OLEDs are thinner, brighter, lighter, and cheaper. However, OLED panels are still the biggest contributor to the total power consumption of mobile devices. In this work, we proposed a fine-grained dynamic voltage scaling (FDVS) technique to reduce the OLED power. An OLED panel is partitioned into multiple display areas of which the supply voltage is adaptively adjusted based on the displayed content. A DVS-friendly OLED driver design is also proposed to enhance the Color accuracy of the OLED pixels at the scaled supply voltage. Our experimental results show that compared to the existing global DVS technique, FDVS technique can achieve 25.9%∼43.1% more OLED power saving while maintaining a high image quality measured by Structural Similarity Index (SSIM=0.98). The further analysis shows shat FDVS technology can also effectively reduce the Color remapping cost when Color Compensation is required to improve the image quality of an OLED panel working at a scaled voltage.

Yiran Chen - One of the best experts on this subject based on the ideXlab platform.

  • fine grained dynamic voltage scaling on oled display
    Asia and South Pacific Design Automation Conference, 2012
    Co-Authors: Xiang Chen, Jian Zeng, Yiran Chen, Wei Zhang, Hai Li
    Abstract:

    Organic Light Emitting Diode (OLED) has emerged as the new generation display technique for mobile multimedia devices. Compared to existing technologies OLEDs are thinner, brighter, lighter, and cheaper. However, OLED panels are still the biggest contributor to the total power consumption of mobile devices. In this work, we proposed a fine-grained dynamic voltage scaling (FDVS) technique to reduce the OLED power. An OLED panel is partitioned into multiple display areas of which the supply voltage is adaptively adjusted based on the displayed content. A DVS-friendly OLED driver design is also proposed to enhance the Color accuracy of the OLED pixels at the scaled supply voltage. Our experimental results show that compared to the existing global DVS technique, FDVS technique can achieve 25.9%∼43.1% more OLED power saving while maintaining a high image quality measured by Structural Similarity Index (SSIM=0.98). The further analysis shows shat FDVS technology can also effectively reduce the Color remapping cost when Color Compensation is required to improve the image quality of an OLED panel working at a scaled voltage.

Jian Zeng - One of the best experts on this subject based on the ideXlab platform.

  • fine grained dynamic voltage scaling on oled display
    Asia and South Pacific Design Automation Conference, 2012
    Co-Authors: Xiang Chen, Jian Zeng, Yiran Chen, Wei Zhang, Hai Li
    Abstract:

    Organic Light Emitting Diode (OLED) has emerged as the new generation display technique for mobile multimedia devices. Compared to existing technologies OLEDs are thinner, brighter, lighter, and cheaper. However, OLED panels are still the biggest contributor to the total power consumption of mobile devices. In this work, we proposed a fine-grained dynamic voltage scaling (FDVS) technique to reduce the OLED power. An OLED panel is partitioned into multiple display areas of which the supply voltage is adaptively adjusted based on the displayed content. A DVS-friendly OLED driver design is also proposed to enhance the Color accuracy of the OLED pixels at the scaled supply voltage. Our experimental results show that compared to the existing global DVS technique, FDVS technique can achieve 25.9%∼43.1% more OLED power saving while maintaining a high image quality measured by Structural Similarity Index (SSIM=0.98). The further analysis shows shat FDVS technology can also effectively reduce the Color remapping cost when Color Compensation is required to improve the image quality of an OLED panel working at a scaled voltage.