Invention Grant
- Patent Title: Method of generating a multiscale contrast enhanced image
- Patent Title (中): 生成多尺度对比度增强图像的方法
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Application No.: US12681791Application Date: 2008-10-02
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Publication No.: US08442340B2Publication Date: 2013-05-14
- Inventor: Tom Bertens , Pieter Vuylsteke
- Applicant: Tom Bertens , Pieter Vuylsteke
- Applicant Address: BE Mortsel
- Assignee: Agfa HealthCare NV
- Current Assignee: Agfa HealthCare NV
- Current Assignee Address: BE Mortsel
- Agency: Houston & Associates, LLP
- Priority: EP07118032 20071008
- International Application: PCT/EP2008/063235 WO 20081002
- International Announcement: WO2009/047208 WO 20090416
- Main IPC: G06K9/40
- IPC: G06K9/40

Abstract:
At least one approximation image is created of the image at one or multiple scales. Translation difference images are created by pixel-wise subtracting the values of an approximation image at scale s and the values of a translated version of the approximation image. A non-linear modification is applied to the values of the translation difference image (s) and at least one enhanced center difference image at a specific scale is computed by combining the modified translation difference images at that scale or a smaller scale with weights Wi,j. An enhanced image is computed by applying a reconstruction algorithm to the enhanced center difference images. The non-linear modification of the values of the translation difference images is steered by the values of an orientation map which comprises for each pixel a local direction of interest. In addition or alternatively, at least one enhanced center difference image is computed by anisotropic weighing of the enhanced translation differences with weights steered by the orientation map.
Public/Granted literature
- US20100220911A1 Method of Generating a Multiscale Contrast Enhanced Image Public/Granted day:2010-09-02
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