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    • 8. 发明授权
    • Measurement of blurring in video sequences
    • 视频序列模糊测量
    • US07099518B2
    • 2006-08-29
    • US10198944
    • 2002-07-18
    • Bei LiWilfried M. Osberger
    • Bei LiWilfried M. Osberger
    • G06K9/40G06K9/48
    • H04N17/00H04N5/208H04N5/21H04N17/004
    • A method for determine blurring in a test video sequence due to video processing includes detecting blocks within each frame of the test video sequence that have valid image edges. An edge point within each valid image edge block is selected and a series of points defining an edge profile in the block along a line normal to the valid image edge at each edge point is defined from an enhanced edge map in which video processing blockiness artifacts have been removed. From the edge profile a blurring value is estimated for each frame or group of frames within the test video sequence. Additionally a reference blurring value may be derived from a reference video sequence corresponding to the test video sequence, which reference blurring value may be generated at a source of the reference video sequence and transmitted with the test video sequence to a receiver or may be generated at the receiver. The reference blurring value is then compared with the blurring value from the test video sequence to produce a relative blurring value for the test video sequence.
    • 由于视频处理,用于确定测试视频序列中的模糊的方法包括检测具有有效图像边缘的测试视频序列的每帧内的块。 选择每个有效图像边缘块内的边缘点,并且沿着沿着垂直于每个边缘点处的有效图像边缘的线的块在块中定义边缘轮廓的一系列点从其中视频处理块状伪影具有的增强边缘图定义 已被删除 从边缘轮廓中,针对测试视频序列内的每个帧或一组帧估计模糊值。 另外,可以从对应于测试视频序列的参考视频序列导出参考模糊值,该参考模糊值可以在参考视频序列的源处生成并且与测试视频序列一起发送到接收机,或者可以在 收件人。 然后将参考模糊值与来自测试视频序列的模糊值进行比较,以产生测试视频序列的相对模糊值。