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利用视觉特征进行MotionJPEG2000低频子带重构

DOI: 10.11834/jig.20091112

Keywords: Motion,JPEG2000编码,低频子带,重构,运动估计

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Abstract:

提出了一种针对MotionJPEG2000低频子带完全受损情况下的错误掩盖算法,该算法对高频图像应用Sobel算子进行图像锐化;随后利用视频序列的时间域相关性,运动估计判断参考帧与受损帧之间物体运动剧烈程度,利用参考帧的低频信息,对受损帧依据其运动剧烈程度分别进行运动补偿处理或低频子带代替处理。该算法计算量小,适合实时应用,且充分考虑视觉特点,对部分运动估计结果进行变换尺度后的验证,实验结果表明其恢复的图像符合人眼主观感受。

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