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公开(公告)号:US20070263897A1
公开(公告)日:2007-11-15
申请号:US10583139
申请日:2004-12-15
申请人: Ee Ong , Weisi Lin , Zhongkang Lu , Susu Yao , Xiakang Yang
发明人: Ee Ong , Weisi Lin , Zhongkang Lu , Susu Yao , Xiakang Yang
IPC分类号: G06K9/00
CPC分类号: G06T7/00 , G06T7/0002 , G06T2207/30168 , H04N17/004 , H04N17/02 , H04N19/137 , H04N19/14 , H04N19/154 , H04N19/86
摘要: An image quality measurement system (10) determines various features of an image that relate to the quality of the image in terms of its appearance. The features include the image's blockiness invisibility (B), the image's colour richness (R) and the image's sharpness (S). These are all obtained without the use of a reference image. The determined features are combined to provide an image quality measure (Q).
摘要翻译: 图像质量测量系统(10)根据其外观确定与图像的质量相关的图像的各种特征。 特征包括图像的块状隐形(B),图像的色彩丰富度(R)和图像的锐度(S)。 这些都是在不使用参考图像的情况下获得的。 确定的特征被组合以提供图像质量测量(Q)。
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公开(公告)号:US20070257988A1
公开(公告)日:2007-11-08
申请号:US10581579
申请日:2004-12-02
申请人: Ee Ong , Xiaokang Yang , Weisi Lin , Zhongkang Lu , Susu Yao
发明人: Ee Ong , Xiaokang Yang , Weisi Lin , Zhongkang Lu , Susu Yao
IPC分类号: H04N17/00
CPC分类号: H04N17/004 , H04N17/02 , H04N19/154 , H04N19/86
摘要: A method of measuring a quality of a test video stream, the method comprising measuring a content richness fidelity feature of the test video stream based on occurrences of color values in image frames of the test video stream; measuring a block-fidelity feature of the test video stream based on distortion at block-boundaries in the image frames of the test video stream; measuring a distortion-invisibility feature of the test video stream based on distortion at pixels of the image frames of the test video stream; and determining a quality rating for the test video stream based on the content richness fidelity feature, the block-fidelity feature and the distortion-invisibility feature measured.
摘要翻译: 一种测量视频流的质量的方法,所述方法包括基于所述测试视频流的图像帧中的颜色值的出现来测量所述测试视频流的内容丰富度保真度特征; 基于测试视频流的图像帧中的块边界处的失真来测量测试视频流的块保真度特征; 基于测试视频流的图像帧的像素的失真来测量测试视频流的失真不可见特征; 以及基于所述内容丰富度保真特征,所述块保真度特征和所述失真不可见特征来确定所述测试视频流的质量等级。
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公开(公告)号:US20060233442A1
公开(公告)日:2006-10-19
申请号:US10534415
申请日:2002-11-06
申请人: Zhongkang Lu , Woisl Lin , Susu Yao , Ee Ong
发明人: Zhongkang Lu , Woisl Lin , Susu Yao , Ee Ong
CPC分类号: H04N17/00 , G06K9/00711 , G06K9/036 , G06T7/0002 , G06T2207/30168
摘要: A method for generating a quality oriented significance camp for assessing the quality of an image or video, comprising the steps of extracting features of the image or video, determining a perceptual quality requirement of at least one extracted feature and integrating the extracted features and the perceptual quality requirement of the at least one extracted feature to form an array of significance level values, thereby generating the quality oriented significance map.
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