Invention Grant
US08437547B2 Device and method for determining an edge histogram, device and method for storing an image in an image database, device and method for finding two similar images and computer program
有权
用于确定边缘直方图的装置和方法,用于在图像数据库中存储图像的装置和方法,用于找到两个相似图像的装置和方法以及计算机程序
- Patent Title: Device and method for determining an edge histogram, device and method for storing an image in an image database, device and method for finding two similar images and computer program
- Patent Title (中): 用于确定边缘直方图的装置和方法,用于在图像数据库中存储图像的装置和方法,用于找到两个相似图像的装置和方法以及计算机程序
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Application No.: US12596477Application Date: 2008-04-22
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Publication No.: US08437547B2Publication Date: 2013-05-07
- Inventor: Thomas Meiers
- Applicant: Thomas Meiers
- Applicant Address: DE Munich
- Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung e.V.
- Current Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung e.V.
- Current Assignee Address: DE Munich
- Agency: Keating & Bennett, LLP
- Priority: DE102007019057 20070423
- International Application: PCT/EP2008/003233 WO 20080422
- International Announcement: WO2008/128759 WO 20081030
- Main IPC: G06K9/00
- IPC: G06K9/00 ; G06K9/40

Abstract:
A device for determining an edge histogram of an image based on information about a gradient strength and a gradient direction of a local gradient in an image content of a partial image of the image includes an allocator which is implemented to allocate the information about the gradient strength and the gradient direction based on an allocation regulation to an edge image in order to obtain edge type information. The allocation regulation is selected such that with a predetermined gradient direction at least three different allocated edge types exist mirroring the different gradient strengths. The device further includes an edge histogram determiner which is implemented to determine the edge histogram based on the edge type information so that in the edge type histogram at least three edge types having different allocated gradient strengths may be differentiated.
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