Systems and methods for glare removal using polarized filtering in document scanning
AssigneeGoogle Inc.
InventorsRobert A. Proudfoot, Marc Levoy
Life of this patent
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AssigneeGoogle Inc.
InventorsRobert A. Proudfoot, Marc Levoy
Estimating the term…
Systems and methods using polarized filtering for glare removal to improve the process of scanning documents, particularly bound documents with glossy content, are disclosed. The system may generally include a lighting source for illuminating a document, a lighting source polarizer attached to the lighting source to polarize light therefrom, a camera for capturing images of the document, and a camera polarizer attached to the camera. The camera polarizer and the lighting source polarizer may be positioned relative to each other so as to facilitate blocking light reflections causing glare off of the document resulting from the lighting source and arriving at the camera. The system may include multiple lighting sources, some or all of which may have a lighting source polarizer attached thereto.
A document scanning system, comprising:
A method for scanning documents, comprising:
A method for reducing glare in imaging documents, comprising:
Dependencies are inferred from the claim text.