Image analysis – Image compression or coding – Quantization
Reexamination Certificate
2006-07-19
2010-06-08
Ahmed, Samir A (Department: 2624)
Image analysis
Image compression or coding
Quantization
C345S030000, C345S050000, C345S051000, C345S087000, C345S098000
Reexamination Certificate
active
07734108
ABSTRACT:
The present invention provides an image processing circuit capable of properly determining whether or not image data is a static image or a moving image and performing overdrive processing thereon. The image processing circuit includes a quantization unit (quantization/threshold-value proximity determination circuit) for quantizing image data input to a liquid crystal display with a predetermined threshold value and outputting the quantized data, a threshold-value proximity determination unit (quantization/threshold-value proximity determination circuit) for determining whether or not the image data is proximal to the threshold value and outputting threshold-value proximity determination data, a moving-image/static-image determination unit (moving-image/static-image determination circuit) for determining whether or not the image data of a current frame is a static image or a moving image, on the basis of the quantized data and the threshold-value proximity determination data of the current frame and the quantized data and the threshold-value proximity determination data of the previous frame, and an overdrive processing unit (LUT, moving-image/static-image processing circuit) for outputting the image data which has been subjected to overdrive processing if the moving-image/static-image determination unit determines that the image data is a moving image.
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Ahmed Samir A
Hu Fred
Mitsubishi Electric Corporation
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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