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公开(公告)号:US20120268652A1
公开(公告)日:2012-10-25
申请号:US13500921
申请日:2009-10-10
申请人: Debing Liu , Zhibo Chen , Xaiodong Gu , Xu Feng
发明人: Debing Liu , Zhibo Chen , Xaiodong Gu , Xu Feng
IPC分类号: H04N7/01
CPC分类号: G06T7/0002 , G06T2207/10016 , G06T2207/20004 , G06T2207/20021 , G06T2207/30168 , H04N7/012 , H04N19/117 , H04N19/14 , H04N19/162 , H04N19/85
摘要: Blur is one of the most important features related to image quality. Accurately estimating the blur level of an image is a great help to accurately evaluate its quality. A method for calculating blur of video images comprises calculating a horizontal blur value, and determining characteristic parameters of the video images, including at last progressive/interlaced and spatial resolution level. If the video images are progressive, also a vertical blur value is calculated, and combined with the horizontal blur value. The next step is normalizing the horizontal blur value, or the combined horizontal and vertical blur value, according to predefined min and max values, wherein the min and max values are adapted to the spatial resolution level.
摘要翻译: 模糊是与图像质量相关的最重要的功能之一。 准确估计图像的模糊水平是准确评估其质量的极大帮助。 一种用于计算视频图像模糊的方法包括计算水平模糊值,以及确定视频图像的特征参数,包括最后渐进/隔行扫描和空间分辨率级别。 如果视频图像是渐进的,则还计算垂直模糊值,并与水平模糊值组合。 下一步是根据预定义的最小值和最大值归一化水平模糊值或组合的水平和垂直模糊值,其中最小值和最大值适应于空间分辨率水平。
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公开(公告)号:US08823873B2
公开(公告)日:2014-09-02
申请号:US13500921
申请日:2009-10-10
申请人: Debing Liu , Zhibo Chen , Xaiodong Gu , Feng Xu
发明人: Debing Liu , Zhibo Chen , Xaiodong Gu , Feng Xu
IPC分类号: H04N7/01
CPC分类号: G06T7/0002 , G06T2207/10016 , G06T2207/20004 , G06T2207/20021 , G06T2207/30168 , H04N7/012 , H04N19/117 , H04N19/14 , H04N19/162 , H04N19/85
摘要: Blur is one of the most important features related to image quality. Accurately estimating the blur level of an image is a great help to accurately evaluate its quality. A method for calculating blur of video images comprises calculating a horizontal blur value, and determining characteristic parameters of the video images, including at last progressive/interlaced and spatial resolution level. If the video images are progressive, also a vertical blur value is calculated, and combined with the horizontal blur value. The next step is normalizing the horizontal blur value, or the combined horizontal and vertical blur value, according to predefined min and max values, wherein the min and max values are adapted to the spatial resolution level.
摘要翻译: 模糊是与图像质量相关的最重要的功能之一。 准确估计图像的模糊水平是准确评估其质量的极大帮助。 一种用于计算视频图像模糊的方法包括计算水平模糊值,以及确定视频图像的特征参数,包括最后渐进/隔行扫描和空间分辨率级别。 如果视频图像是渐进的,则还计算垂直模糊值,并与水平模糊值组合。 下一步是根据预定义的最小值和最大值归一化水平模糊值或组合的水平和垂直模糊值,其中最小值和最大值适应于空间分辨率水平。
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