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".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Este artigo apresenta uma técnica de conversão A/D de vídeo de baixa potência usando recursos de imagens em movimento. Os quadros vizinhos em sequências de vídeo típicas e os pixels vizinhos em cada quadro de vídeo são altamente correlacionados. Esta propriedade é efetivamente usada para a conversão de vídeo A/D para reduzir o número de comparadores e o consumo de energia resultante. Um conjunto de tensões de referência é fornecido a uma matriz comparadora de modo que a conversão A/D iterativa converge na ordem logarítmica do erro de previsão. Os resultados da simulação usando imagens em movimento padrão mostraram que o número médio de iterações para a conversão A/D é inferior a 3 para todas as imagens em movimento testadas. No conversor A/D 12 b proposto, o número de comparadores pode ser reduzido para cerca de 1/5 em comparação com os conversores A/D flash de duas etapas, que são comumente usados para aplicações de vídeo. O conversor A/D é particularmente útil para integração com sensores de imagem CMOS.
The copyright of the original papers published on this site belongs to IEICE. Unauthorized use of the original or translated papers is prohibited. See IEICE Provisions on Copyright for details.
Copiar
Shoji KAWAHITO, Junichi NAKA, Yoshiaki TADOKORO, "A Low-Power A/D Conversion Technique Using Correlation of Moving Pictures" in IEICE TRANSACTIONS on Electronics,
vol. E82-C, no. 9, pp. 1764-1771, September 1999, doi: .
Abstract: This paper presents a low-power video A/D conversion technique using features of moving pictures. Neighboring frames in typical video sequences and neighboring pixels in each video frame are highly correlated. This property is effectively used for the video A/D conversion to reduce the number of comparators and the resulting power consumption. A set of reference voltages is given to a comparator array so that the iterative A/D conversion converges in the logarithmic order of the prediction error. Simulation results using standard moving pictures showed that the average number of iterations for the A/D conversion is less than 3 for all the moving pictures tested. In the proposed 12 b A/D converter, the number of comparators can be reduced to about 1/5 compared with that of the two-step flash A/D converters, which are commonly used for video applications. The A/D converter is particularly useful for the integration to CMOS image sensors.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e82-c_9_1764/_p
Copiar
@ARTICLE{e82-c_9_1764,
author={Shoji KAWAHITO, Junichi NAKA, Yoshiaki TADOKORO, },
journal={IEICE TRANSACTIONS on Electronics},
title={A Low-Power A/D Conversion Technique Using Correlation of Moving Pictures},
year={1999},
volume={E82-C},
number={9},
pages={1764-1771},
abstract={This paper presents a low-power video A/D conversion technique using features of moving pictures. Neighboring frames in typical video sequences and neighboring pixels in each video frame are highly correlated. This property is effectively used for the video A/D conversion to reduce the number of comparators and the resulting power consumption. A set of reference voltages is given to a comparator array so that the iterative A/D conversion converges in the logarithmic order of the prediction error. Simulation results using standard moving pictures showed that the average number of iterations for the A/D conversion is less than 3 for all the moving pictures tested. In the proposed 12 b A/D converter, the number of comparators can be reduced to about 1/5 compared with that of the two-step flash A/D converters, which are commonly used for video applications. The A/D converter is particularly useful for the integration to CMOS image sensors.},
keywords={},
doi={},
ISSN={},
month={September},}
Copiar
TY - JOUR
TI - A Low-Power A/D Conversion Technique Using Correlation of Moving Pictures
T2 - IEICE TRANSACTIONS on Electronics
SP - 1764
EP - 1771
AU - Shoji KAWAHITO
AU - Junichi NAKA
AU - Yoshiaki TADOKORO
PY - 1999
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E82-C
IS - 9
JA - IEICE TRANSACTIONS on Electronics
Y1 - September 1999
AB - This paper presents a low-power video A/D conversion technique using features of moving pictures. Neighboring frames in typical video sequences and neighboring pixels in each video frame are highly correlated. This property is effectively used for the video A/D conversion to reduce the number of comparators and the resulting power consumption. A set of reference voltages is given to a comparator array so that the iterative A/D conversion converges in the logarithmic order of the prediction error. Simulation results using standard moving pictures showed that the average number of iterations for the A/D conversion is less than 3 for all the moving pictures tested. In the proposed 12 b A/D converter, the number of comparators can be reduced to about 1/5 compared with that of the two-step flash A/D converters, which are commonly used for video applications. The A/D converter is particularly useful for the integration to CMOS image sensors.
ER -