The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
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Uma técnica de dimerização adaptativa controla a transmitância do painel LCD e a luminância da luz de fundo de forma adequada e local, de acordo com o sinal de TV de entrada. A técnica reduz o consumo de energia e também melhora a qualidade da imagem. No entanto, uma mudança acentuada na distribuição de luminância da luz de fundo devido à aplicação da técnica causa degradação da imagem em torno dos limites dos segmentos quando o LCD é visto de um ângulo. O principal fator de degradação da imagem é a iluminação de um pixel pela luz de fundo correspondente do pixel vizinho quando o LCD é visto de um ângulo em vez da direção normal. A partir da avaliação subjetiva da qualidade da imagem e da simulação computacional, verifica-se que o gradiente da variação da luminância da luz de fundo para a luminância na borda do segmento deve ser inferior a 0.022 por pixel, a fim de suprimir a degradação da imagem.
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Seiji OGAKI, Kazuma SAKAKIBARA, Tomokazu SHIGA, "Reduction of Image Degradation due to Viewing Angle in Adaptive Dimming Technique" in IEICE TRANSACTIONS on Electronics,
vol. E93-C, no. 11, pp. 1572-1576, November 2010, doi: 10.1587/transele.E93.C.1572.
Abstract: An adaptive dimming technique controls both LCD panel transmittance and its backlight luminance adequately and locally according to the input TV signal. The technique reduces the power consumption and also improves the picture quality. However, a steep change in backlight luminance distribution due to the application of the technique causes image degradation around the boundary of the segments when the LCD is viewed from an angle. The main factor of image degradation is the illumination of a pixel by neighboring pixel's corresponding backlight when the LCD is viewed from an angle rather than normal direction. From the subjective evaluation of image quality and computer simulation, it is found that the gradient of the backlight luminance variation to luminance at the border of the segment should be less than 0.022 per pixel in order to suppress the image degradation.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E93.C.1572/_p
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@ARTICLE{e93-c_11_1572,
author={Seiji OGAKI, Kazuma SAKAKIBARA, Tomokazu SHIGA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Reduction of Image Degradation due to Viewing Angle in Adaptive Dimming Technique},
year={2010},
volume={E93-C},
number={11},
pages={1572-1576},
abstract={An adaptive dimming technique controls both LCD panel transmittance and its backlight luminance adequately and locally according to the input TV signal. The technique reduces the power consumption and also improves the picture quality. However, a steep change in backlight luminance distribution due to the application of the technique causes image degradation around the boundary of the segments when the LCD is viewed from an angle. The main factor of image degradation is the illumination of a pixel by neighboring pixel's corresponding backlight when the LCD is viewed from an angle rather than normal direction. From the subjective evaluation of image quality and computer simulation, it is found that the gradient of the backlight luminance variation to luminance at the border of the segment should be less than 0.022 per pixel in order to suppress the image degradation.},
keywords={},
doi={10.1587/transele.E93.C.1572},
ISSN={1745-1353},
month={November},}
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TY - JOUR
TI - Reduction of Image Degradation due to Viewing Angle in Adaptive Dimming Technique
T2 - IEICE TRANSACTIONS on Electronics
SP - 1572
EP - 1576
AU - Seiji OGAKI
AU - Kazuma SAKAKIBARA
AU - Tomokazu SHIGA
PY - 2010
DO - 10.1587/transele.E93.C.1572
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E93-C
IS - 11
JA - IEICE TRANSACTIONS on Electronics
Y1 - November 2010
AB - An adaptive dimming technique controls both LCD panel transmittance and its backlight luminance adequately and locally according to the input TV signal. The technique reduces the power consumption and also improves the picture quality. However, a steep change in backlight luminance distribution due to the application of the technique causes image degradation around the boundary of the segments when the LCD is viewed from an angle. The main factor of image degradation is the illumination of a pixel by neighboring pixel's corresponding backlight when the LCD is viewed from an angle rather than normal direction. From the subjective evaluation of image quality and computer simulation, it is found that the gradient of the backlight luminance variation to luminance at the border of the segment should be less than 0.022 per pixel in order to suppress the image degradation.
ER -