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    Mimicked machine-readable codes, and methods
    1.
    发明授权
    Mimicked machine-readable codes, and methods 有权

    公开(公告)号：US12205190B2

    公开(公告)日：2025-01-21

    申请号：US17516464

    申请日：2021-11-01

    Applicant: Digimarc Corporation

    Inventor： Ajith M. Kamath

    IPC: G06K9/00 ,  G06T1/00 ,  G06T11/40 ,  G06T11/60

    Abstract: In one aspect, a 2D machine readable code is mimicked by a collection of graphic elements. This can involve choosing a location, within an input 2D code block, at which correlation between a first graphic element and the input 2D code block is maximized. An area around this location is then disqualified from further consideration. A second location is next chosen, within the input 2D code block but outside the disqualified area, at which correlation between a second graphic element and the input 2D code block is maximized. The process continues in this fashion, adding graphics and removing additional areas from consideration, until a threshold number of graphic elements has been placed. The elements are then assembled in their corresponding locations to yield a composite image block that provides features mimicking that of the input 2D code block, thereby enabling the composite image block to be decoded by a compliant code reader. A great variety of other signal rich art arrangements are also detailed.

    Color driven localization of 1D and 2D barcodes in digital capture systems
    2.
    发明授权
    Color driven localization of 1D and 2D barcodes in digital capture systems 有权

    公开(公告)号：US12124919B2

    公开(公告)日：2024-10-22

    申请号：US18138946

    申请日：2023-04-25

    Applicant: Digimarc Corporation

    Inventor： Vojtech Holub ,  Vahid Sedighianaraki ,  Adnan M. Alattar

    IPC: G06K7/14

    CPC classification number: G06K7/1417 ,  G06K7/1413

    Abstract: The present disclosures relates to decoding machine readable indicia (e.g., a 1D or 2D barcode) in imagery, and related image processing technology. One claim recites a method of locating a barcode within imagery, comprising: converting the imagery to greyscale imagery; evaluating a plurality of blocks within the greyscale imagery, each of the plurality of blocks comprising n×m pixels, where both n and m are positive integers; for each block of the plurality of blocks, determining a value representing pixel diversity within the block; masking the greyscale imagery based on values of the plurality of blocks, in which blocks with a value below a predetermined value of pixel diversity are masked out or excluded; searching the masked, greyscale imagery to determine whether is includes a barcode represented therein. Of course, other claims and combinations are provided too.

    Watermarking arrangements permitting vector graphics editing
    3.
    发明授权
    Watermarking arrangements permitting vector graphics editing 有权

    公开(公告)号：US12073487B2

    公开(公告)日：2024-08-27

    申请号：US17704984

    申请日：2022-03-25

    Applicant: Digimarc Corporation

    Inventor： Ajith M. Kamath

    IPC: G06T1/00 ,  G06T7/90 ,  G06T11/20 ,  G06T11/40

    CPC classification number: G06T1/0028 ,  G06T7/90 ,  G06T11/203 ,  G06T11/40

    Abstract: A vector graphics file includes at least one artwork layer and at least one watermark layer. The watermark layer comprises a pattern of vector graphics primitives, each of which is filled with a color that is a tinted variant of the color of the location in the artwork that the primitive overlies. Such layered arrangement enables the watermark to be added or omitted, and varied in strength, payload and appearance, at will. Yet the artwork is left unchanged through such manipulations. In some embodiments the watermark conveys a multi-symbol Global Trade Item Number (GTIN), and the file is used to generate a label or packaging for a food or general merchandise retail item. A great number of other arrangements, features and advantages are also detailed.

    Information-client server built on a rapid material identification platform
    10.
    发明授权
    Information-client server built on a rapid material identification platform 有权

    公开(公告)号：US11769241B1

    公开(公告)日：2023-09-26

    申请号：US16944136

    申请日：2020-07-30

    Applicant: Digimarc Corporation

    Inventor： Geoffrey B. Rhoads

    IPC: G06T7/00 ,  G06V10/25

    CPC classification number: G06T7/0004 ,  G06V10/25 ,  G06T2207/20004

    Abstract: Items are identified in a waste stream for purposes of recycling, using deterministic and/or probabilistic techniques. Imagery of the waste stream from multiple viewpoints permit creation of a 3D depth draped image representation, from which one or more 2D planes can be synthesized. Phase-coherent patches of recoverable encoded data can be identified from among soiled and crumpled object surfaces, and used in combination to recover object identification information. Recognition of certain items can trigger further image processing that is specific to such items. (Detection of a catsup bottle, for example, can trigger image analysis to discern the presence of catsup residue.) Information about recognized objects can be provided to external data customers, e.g., to track grey market diversion of particular products into unlicensed territories. These and other features and advantages, which can be used alone or in combination, are detailed herein.

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