A proposal of image quality evaluation method for compressed color motion pictures

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  • 圧縮されたカラー動画像に対する画質評価法の提案
  • アッシュク サレタ カラー ドウガゾウ ニ タイスル ガシツ ヒョウカホウ ノ テイアン

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In codec of motion pictures a good measure for evaluating the image quality including the color reproduction is strongly desired to determine a proper compression rate. In this article, we propose an image quality evaluation method for motion pictures compressed by H.264/AVC codec which is receiving increased attention. In the proposed method, we considered the contrast sensitivity function (CSF) of human visual system by the S-CIELAB filtering. Next, we quantified the amount of the movement of each content by using the correlation coefficient between frames of the motion pictures and incorporated it in image quality evaluation. As a result, we confirmed that the proposed method has high correlation with the subjective evaluation, and is superior to the other image quality evaluation methods.

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