Invention Publication
EP2338048A2 COMPOSITE EVALUATION BY DERIVING THE ANGULAR DISTRIBUTION OF FEATURES
审中-公开
VERBUNDSTOFFBEWERTUNG DURCH ABLEITEN DER WINKELVERTEILUNG VON MERKMALEN
- Patent Title: COMPOSITE EVALUATION BY DERIVING THE ANGULAR DISTRIBUTION OF FEATURES
- Patent Title (中): VERBUNDSTOFFBEWERTUNG DURCH ABLEITEN DER WINKELVERTEILUNG VON MERKMALEN
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Application No.: EP09752883.0Application Date: 2009-10-02
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Publication No.: EP2338048A2Publication Date: 2011-06-29
- Inventor: SMITH, Robert, Alan , NELSON, Luke, Joseph
- Applicant: QinetiQ Limited
- Applicant Address: Cody Technology Park Ively Road Farnborough Hampshire GU14 0LX GB
- Assignee: QinetiQ Limited
- Current Assignee: QinetiQ Limited
- Current Assignee Address: Cody Technology Park Ively Road Farnborough Hampshire GU14 0LX GB
- Agency: Northway, Daniel Robert
- Priority: GB0818088 20081003
- International Announcement: WO2010038039 20100408
- Main IPC: G01N29/06
- IPC: G01N29/06 ; G01N29/44 ; G01N21/956 ; G06T5/00 ; G06T7/40
Abstract:
A method of evaluating a composite structure in which a portion of the structure is imaged and subsequently transformed to provide a 2D output of the angular distribution of features, eg a 2D FFT. A weighting function is applied to the output to compensate for variation in the angular density of pixel population. The weighted output is then used to provide an angular distribution of feature intensity. The structure can be imaged in two or more intersecting planes to allow a 3D determination of feature direction to be obtained.
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