Invention Grant
- Patent Title: Method and arrangement for determining a position of an object
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Application No.: US17163543Application Date: 2021-01-31
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Publication No.: US11948293B2Publication Date: 2024-04-02
- Inventor: Wolfgang Hoegele
- Applicant: Carl Zeiss Industrielle Messtechnik GmbH
- Applicant Address: DE Oberkochen
- Assignee: Carl Zeiss Industrielle Messtechnik GmbH
- Current Assignee: Carl Zeiss Industrielle Messtechnik GmbH
- Current Assignee Address: DE Oberkochen
- Agency: Ewers IP Law PLLC
- Agent Falk Ewers
- Priority: DE 2020201196.6 2020.01.31 DE 2020215960.2 2020.12.15
- Main IPC: G06T7/00
- IPC: G06T7/00 ; G01N21/88 ; G06T7/11

Abstract:
A position of an object is determined by optically capturing at least one capture structure arranged at the object or at a reference object captured from the object and thereby obtaining capture information, the at least one capture structure having a point-symmetrical profile of an optical property that varies along a surface of the capture structure, transforming a location-dependent mathematical function corresponding to the point-symmetrical profile of the optical property into a frequency domain, forming a second frequency-dependent mathematical function from a first frequency-dependent mathematical function, wherein the second mathematical function is formed from a relationship of in each case a real part and an imaginary part of complex function values of the first frequency-dependent mathematical function, and forming at least one function value of the second frequency-dependent mathematical function and determining the same as location information about a location of a point of symmetry of the location-dependent mathematical function.
Public/Granted literature
- US20210241437A1 METHOD AND ARRANGEMENT FOR DETERMINING A POSITION OF AN OBJECT Public/Granted day:2021-08-05
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