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公开(公告)号：US09245331B2
公开(公告)日：2016-01-26
申请号：US14283007
申请日：2014-05-20
Applicant: RAYTHEON COMPANY
Inventor： Christopher J. Beardsley , Luan B. Do
CPC classification number: G06T5/009 , G06K9/40 , G06T5/40 , G06T2207/10048 , G06T2207/20016 , G06T2207/20204 , H04N5/202 , H04N5/57 , H04N21/4318
Abstract: A system and method for image contrast enhancement using sub-segments. A coarse piecewise linear transform is formed based on the intensity distribution in an image, the segments of the piecewise linear transform selected to produce, when the piecewise linear transform is applied to the image, an improved intensity distribution, e.g., one approximating a Rayleigh distribution. A fine piecewise linear transform is formed by forming sub-segments at each of the breakpoints of the coarse piecewise linear transform.
Abstract translation: 一种使用子片段进行图像对比度增强的系统和方法。 基于图像中的强度分布形成粗分段线性变换，当将分段线性变换应用于图像时，分段线性变换的分段被选择以产生改善的强度分布，例如近似瑞利分布 。 通过在粗分段线性变换的每个断点处形成子段来形成精细的分段线性变换。
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公开(公告)号：US20150339807A1
公开(公告)日：2015-11-26
申请号：US14283007
申请日：2014-05-20
Applicant: RAYTHEON COMPANY
Inventor： Christopher J. Beardsley , Luan B. Do
CPC classification number: G06T5/009 , G06K9/40 , G06T5/40 , G06T2207/10048 , G06T2207/20016 , G06T2207/20204 , H04N5/202 , H04N5/57 , H04N21/4318
Abstract: A system and method for image contrast enhancement using sub-segments. A coarse piecewise linear transform is formed based on the intensity distribution in an image, the segments of the piecewise linear transform selected to produce, when the piecewise linear transform is applied to the image, an improved intensity distribution, e.g., one approximating a Rayleigh distribution. A fine piecewise linear transform is formed by forming sub-segments at each of the breakpoints of the coarse piecewise linear transform.
Abstract translation: 一种使用子片段进行图像对比度增强的系统和方法。 基于图像中的强度分布形成粗分段线性变换，当将分段线性变换应用于图像时，分段线性变换的分段被选择以产生改善的强度分布，例如近似瑞利分布 。 通过在粗分段线性变换的每个断点处形成子段来形成精细的分段线性变换。
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