Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 7, 2023
Patent Application Number
17237596
Date Filed
April 22, 2021
Patent Citations
Patent Primary Examiner
Efficient location and identification of documents in images. In an embodiment, at least one quadrangle is extracted from an image based on line(s) extracted from the image. Parameter(s) are determined from the quadrangle(s), and keypoints are extracted from the image based on the parameter(s). Input descriptors are calculated for the keypoints and used to match the keypoints to reference keypoints, to identify classification candidate(s) that represent a template image of a type of document. The type of document and distortion parameter(s) are determined based on the classification candidate(s).
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