Implementation of Multimode-Multilevel Block Truncation Coding for LCD Overdrive

Taegeun OH; Sanghoon LEE

doi:10.1587/transfun.E95.A.867

Implementation of Multimode-Multilevel Block Truncation Coding for LCD Overdrive

Taegeun OH, Sanghoon LEE

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The Liquid-crystal display (LCD) overdrive technique has been utilized to reduce motion blur on a display via a reduction in the response time. However, to measure the variation of the pixel amplitudes, it is necessary to store the previous frame using a large frame memory. To downscale the frame memory, block truncation coding (BTC) is commonly employed due to the simplicity of its implementation, even if some visual artifacts may occur for image blocks with high frequency components. In this paper, we present a multimode-multilevel BTC (MBTC) technique that improves performance while maintaining simplicity. To improve the visual quality, we uniquely determine the quantization level and coding mode of each block according to the distribution of the luminance and chrominance amplitudes. For a compression ratio of 6:1, the proposed method demonstrates higher coding efficiency and overdrive performance by up to 3.81 dB in the PSNR compared to other methods.

Publication: IEICE TRANSACTIONS on Fundamentals Vol.E95-A No.5 pp.867-875

Publication Date: 2012/05/01

Publicized

Online ISSN: 1745-1337

DOI: 10.1587/transfun.E95.A.867

Type of Manuscript: PAPER

Category: Digital Signal Processing

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Taegeun OH, Sanghoon LEE, "Implementation of Multimode-Multilevel Block Truncation Coding for LCD Overdrive" in IEICE TRANSACTIONS on Fundamentals, vol. E95-A, no. 5, pp. 867-875, May 2012, doi: 10.1587/transfun.E95.A.867.
Abstract: The Liquid-crystal display (LCD) overdrive technique has been utilized to reduce motion blur on a display via a reduction in the response time. However, to measure the variation of the pixel amplitudes, it is necessary to store the previous frame using a large frame memory. To downscale the frame memory, block truncation coding (BTC) is commonly employed due to the simplicity of its implementation, even if some visual artifacts may occur for image blocks with high frequency components. In this paper, we present a multimode-multilevel BTC (MBTC) technique that improves performance while maintaining simplicity. To improve the visual quality, we uniquely determine the quantization level and coding mode of each block according to the distribution of the luminance and chrominance amplitudes. For a compression ratio of 6:1, the proposed method demonstrates higher coding efficiency and overdrive performance by up to 3.81 dB in the PSNR compared to other methods.
URL: https://globals.ieice.org/en_transactions/fundamentals/10.1587/transfun.E95.A.867/_p

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@ARTICLE{e95-a_5_867,
author={Taegeun OH, Sanghoon LEE, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Implementation of Multimode-Multilevel Block Truncation Coding for LCD Overdrive},
year={2012},
volume={E95-A},
number={5},
pages={867-875},
abstract={The Liquid-crystal display (LCD) overdrive technique has been utilized to reduce motion blur on a display via a reduction in the response time. However, to measure the variation of the pixel amplitudes, it is necessary to store the previous frame using a large frame memory. To downscale the frame memory, block truncation coding (BTC) is commonly employed due to the simplicity of its implementation, even if some visual artifacts may occur for image blocks with high frequency components. In this paper, we present a multimode-multilevel BTC (MBTC) technique that improves performance while maintaining simplicity. To improve the visual quality, we uniquely determine the quantization level and coding mode of each block according to the distribution of the luminance and chrominance amplitudes. For a compression ratio of 6:1, the proposed method demonstrates higher coding efficiency and overdrive performance by up to 3.81 dB in the PSNR compared to other methods.},
keywords={},
doi={10.1587/transfun.E95.A.867},
ISSN={1745-1337},
month={May},}

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TY - JOUR
TI - Implementation of Multimode-Multilevel Block Truncation Coding for LCD Overdrive
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 867
EP - 875
AU - Taegeun OH
AU - Sanghoon LEE
PY - 2012
DO - 10.1587/transfun.E95.A.867
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E95-A
IS - 5
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - May 2012
AB - The Liquid-crystal display (LCD) overdrive technique has been utilized to reduce motion blur on a display via a reduction in the response time. However, to measure the variation of the pixel amplitudes, it is necessary to store the previous frame using a large frame memory. To downscale the frame memory, block truncation coding (BTC) is commonly employed due to the simplicity of its implementation, even if some visual artifacts may occur for image blocks with high frequency components. In this paper, we present a multimode-multilevel BTC (MBTC) technique that improves performance while maintaining simplicity. To improve the visual quality, we uniquely determine the quantization level and coding mode of each block according to the distribution of the luminance and chrominance amplitudes. For a compression ratio of 6:1, the proposed method demonstrates higher coding efficiency and overdrive performance by up to 3.81 dB in the PSNR compared to other methods.
ER -