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    METHODS AND ARRANGEMENTS FOR CONFIGURING INDUSTRIAL INSPECTION SYSTEMS
    1.
    发明申请
    METHODS AND ARRANGEMENTS FOR CONFIGURING INDUSTRIAL INSPECTION SYSTEMS 有权

    公开(公告)号：US20230076612A1

    公开(公告)日：2023-03-09

    申请号：US17903747

    申请日：2022-09-06

    Applicant: Digimarc Corporation

    Inventor： Scott M. Long ,  Christopher M. Haverkate ,  Eric D. Evans

    IPC: G06T1/00 ,  G06K9/62 ,  H04N19/91 ,  G06T5/40 ,  H04N19/44

    Abstract: In computer vision systems that need to decode machine-readable indicia from captured imagery, it is critical to select imaging parameters (e.g., exposure interval, exposure aperture, camera gain, intensity and duration of supplemental illumination) that best allow detection of subtle features from imagery. In illustrative embodiments, a Shannon entropy metric or a KL divergence metric is used to guide selection of an optimal set of imaging parameters. In accordance with other aspects of the technology, different strategies identify which spatial locations within captured imagery should be successively examined for machine readable indicia, in order to have a greatest likelihood of success, within a smallest interval of time. A great variety of other features and arrangements are also detailed.

    Methods and arrangements for configuring industrial inspection systems
    2.
    发明授权
    Methods and arrangements for configuring industrial inspection systems 有权

    公开(公告)号：US10593007B1

    公开(公告)日：2020-03-17

    申请号：US15816098

    申请日：2017-11-17

    Applicant: Digimarc Corporation

    Inventor： Scott M. Long ,  Christopher M. Haverkate

    IPC: G06T1/00 ,  G06K9/62 ,  H04N19/91 ,  G06T5/40 ,  H04N19/44

    Abstract: In computer vision systems that need to decode machine-readable indicia from captured imagery, it is critical to select imaging parameters (e.g., exposure interval, exposure aperture, camera gain, intensity and duration of supplemental illumination) that best allow detection of subtle features from imagery. In illustrative embodiments, a Shannon entropy metric or a KL divergence metric is used to guide selection of an optimal set of imaging parameters. In accordance with other aspects of the technology, different strategies identify which spatial locations within captured imagery should be successively examined for machine readable indicia, in order to have a greatest likelihood of success, within a smallest interval of time. A great variety of other features and arrangements are also detailed.

    Sensing systems
    3.
    发明授权
    Sensing systems 有权

    公开(公告)号：US11423329B2

    公开(公告)日：2022-08-23

    申请号：US16247097

    申请日：2019-01-14

    Applicant: Digimarc Corporation

    Inventor： Scott M. Long ,  John D. Lord

    IPC: G06N20/00 ,  G11C7/10 ,  H04L67/125 ,  G06N3/08 ,  G06N20/10 ,  G11C19/00 ,  H04L67/63 ,  G06N7/00 ,  G06N3/12 ,  G06N3/04

    Abstract: A system learns to automatically identify, and detect, contextual conditions that may serve as action triggers to help please a user (or avoid annoying a user). Among other features, a simple sensor arrangement is detailed which, in addition to producing a customary stream of high bandwidth sensor data, provides an output of low bandwidth data. This low-bandwidth data serves to identify a particular reference pattern with which the high-bandwidth sensor data is found to correspond. Such a sensor can employ reference patterns discovered through pseudo-random trials. A great number of other advantageous features and arrangements are also detailed.

    SCANNER WITH CONTROL LOGIC FOR RESOLVING PACKAGE LABELING CONFLICTS
    4.
    发明申请
    SCANNER WITH CONTROL LOGIC FOR RESOLVING PACKAGE LABELING CONFLICTS 审中-公开

    公开(公告)号：US20190311167A1

    公开(公告)日：2019-10-10

    申请号：US16384527

    申请日：2019-04-15

    Applicant: Digimarc Corporation

    Inventor： Arthur L. Powell ,  Tony F. Rodriguez ,  Scott M. Long

    IPC: G06K7/14 ,  G06K19/06

    Abstract: An automatic object identification scanner is equipped with recognition units that provide detection results for objects and a controller that resolves potential conflicts in the results. One form of recognition unit detects product identifiers and flags in a digital payload that is encoded redundantly across packaging or labels applied to packaging. The controller gets detection results and evaluates them relative to a state data structure, which maintains state for identifiers obtained within a time interval, such as a timeout interval or waiting period after a detection result. Identifiers are reported to a POS system depending on logic that evaluates code priority and pending waiting periods.

    Diagnostic data reporting from point-of-sale scanner
    5.
    发明授权
    Diagnostic data reporting from point-of-sale scanner 有权

    公开(公告)号：US10204253B1

    公开(公告)日：2019-02-12

    申请号：US15918840

    申请日：2018-03-12

    Applicant: Digimarc Corporation

    Inventor： Scott M. Long

    IPC: G06K7/14 ,  G06Q20/20

    Abstract: Debug information is output from a point-of-scale scanner by disguising it as one or more product identifiers (e.g., Global Trade Item Numbers, or GTINs). Generation of such “faux GTINs” to convey the debug information can be activated by presenting a special machine readable code to the scanner. Repetitive patterns in the debug information are desirably varied to avoid triggering duplicate detection logic in the scanner, which might otherwise suppress outputting of such repetitive information.

    Visual search methods and systems
    9.
    发明授权
    Visual search methods and systems 有权

    公开(公告)号：US10303988B1

    公开(公告)日：2019-05-28

    申请号：US15237110

    申请日：2016-08-15

    Applicant: Digimarc Corporation

    Inventor： Scott M. Long ,  Geoffrey B. Rhoads

    IPC: G06K9/68 ,  H04N1/00 ,  G06K9/00 ,  H04N1/387 ,  H04N5/232 ,  G06T1/00 ,  G06K9/62 ,  G06T11/60 ,  H04N19/467 ,  H04N19/44 ,  G06T3/40

    Abstract: Certain aspects of the present technology involve automated capture of several image frames (e.g., simultaneously in a single exposure, or in a burst of exposures), and application of a data-extraction process (e.g., watermark decoding) to each such image. Other aspects of the technology involve capturing a single scene at two different resolutions, and submitting imagery at both resolutions for watermark decoding. Still other aspects of the technology involve increasing the signal-to-noise ratio of a watermark signal by subtracting one image from another. Yet other aspects of the technology involve receiving focus distance data from a camera, and employing such data in extracting information from camera imagery. Smartphone camera APIs can be employed to simplify implementation of such methods. A great number of features and arrangements are also detailed. Embodiments of such technology can simplify image processing required for data extraction, with attendant reductions in required program memory and battery power consumption. Moreover, they can enlarge a system's operational envelope—enabling information to be extracted from imagery under conditions that lead to failure in prior art arrangements.

    Scanner with control logic for resolving package labeling
    10.
    发明授权
    Scanner with control logic for resolving package labeling 有权

    公开(公告)号：US10262176B1

    公开(公告)日：2019-04-16

    申请号：US15441006

    申请日：2017-02-23

    Applicant: Digimarc Corporation

    Inventor： Arthur L. Powell ,  Tony F. Rodriguez ,  Scott M. Long

    IPC: G06K7/14 ,  G06K19/06 ,  G06K7/10

    Abstract: An automatic object identification scanner is equipped with recognition units that provide detection results for objects and a controller that resolves potential conflicts in the results. One form of recognition unit detects product identifiers and flags in a digital payload that is encoded redundantly across packaging or labels applied to packaging. The controller gets detection results and evaluates them relative to a state data structure, which maintains state for identifiers obtained within a time interval, such as a timeout interval or waiting period after a detection result. Identifiers are reported to a POS system depending on logic that evaluates code priority and pending waiting periods.

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