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31. 发明授权

US10706490B2 Digital watermarking applications 有权
公开(公告)号：US10706490B2
公开(公告)日：2020-07-07
申请号：US15894549
申请日：2018-02-12
申请人： Digimarc Corporation
发明人： Sean Calhoon
IPC分类号： G06K9/00 , G06T1/00 , G06Q20/20
摘要： In one aspect, assembly of multi-part food packaging is checked by reference to payloads of steganographically-encoded digital watermarks printed across the packaging components. Marking all surfaces of the packaging components allows arbitrary orientation of feed stock in assembly equipment, and wide latitude in placement of inspection cameras along the packaging line. In another aspect, a scanner at a retail checkout station is alert to any gap detected in steganographic encoding on retail product packaging and, if found, alerts an operator to possible presence of an adhesive label with a misleading barcode. A great variety of others features and arrangements are also detailed.

32. 发明授权

US10666784B2 Intuitive computing methods and systems 有权
公开(公告)号：US10666784B2
公开(公告)日：2020-05-26
申请号：US16390798
申请日：2019-04-22
申请人： Digimarc Corporation
发明人： Geoffrey B. Rhoads , Tony F. Rodriguez
IPC分类号： G01C21/00 , H04M1/725 , G01C21/20 , G01C21/36 , G06F3/01 , G06Q10/10 , G06F3/00 , G09G5/00 , H04N5/225 , G06K9/62 , G06F3/023 , G06F3/0481 , G06F3/0484 , G06F3/0488 , G06T19/00 , H04N5/232 , G06K9/46 , H04W4/02 , G06K9/00 , H04W4/029 , G06F3/0482
摘要： A smart phone receives imagery depicting a scene, and overlays indicia (augmentations) corresponding to supplemental data that relate to one or more features in the scene. The overlaid indicia are narrowed from a larger universe of options based on two criteria. A first criterion comprises factors such as actions previously taken by the user or third parties expressing interest or disinterest in presented indicia, time of day, and topical preference data for the user. A second criterion comprises a setting of a user-settable visual verbosity control. A user can thereby vary how much information, identified using the first criteria, is overlaid on the displayed scene, by varying the setting of the visual verbosity control. A great number of other features and arrangements are also detailed.

33. 发明授权

US10664940B2 Signal encoding to reduce perceptibility of changes over time 有权
公开(公告)号：US10664940B2
公开(公告)日：2020-05-26
申请号：US16242805
申请日：2019-01-08
申请人： Digimarc Corporation
发明人： Alastair M. Reed , Ravi K. Sharma
IPC分类号： G06K9/00 , G06T1/00
摘要： The present disclosures relates generally to digital watermarking and data hiding. One claim recites a smartphone comprising: a camera to capture video of a display that is rendering video, in which the video comprises a first watermark signal embedded in a first portion of the data, a second watermark signal embedded in a second portion of the data, and a third watermark signal embedded in a third portion of the data, in which at least two of the first watermark signal, second watermark signal and third watermark signal are inversely related to one another; electronic memory for buffering data representing captured video; one or more electronic processors programmed for: applying a first perspective distortion to the data representing the captured video to yield first perspective distorted video; and analyzing the first perspective distorted video to detect digital watermarking, in which a second perspective distortion is applied to the data representing the captured video to yield second perspective distorted video when the analyzing does not detect digital watermarking, and then performing analyzing the second perspective distorted video to detect digital watermarking. Of course, other claims are provided too.

34. 发明授权

US10650209B2 Localization of machine-readable indicia in digital capture systems 有权
公开(公告)号：US10650209B2
公开(公告)日：2020-05-12
申请号：US15893266
申请日：2018-02-09
申请人： Digimarc Corporation
发明人： Vojtech Holub , Tomas Filler
IPC分类号： G06K7/14 , G06K9/62 , G06K9/46 , G06T1/00
摘要： The present disclosures relates to finding or localizing machine readable indicia (e.g., a barcode or digital watermark) in imagery. One claim recites an apparatus comprising: memory for buffering blocks of image data, the image data having been captured with a camera and depicting a printed object; one or more processors programmed for: generating an edge orientation sensitive feature set from the image data; using a first trained classifier to determine whether the feature set includes data representing a barcode; and using N additional trained classifiers to determine an orientation angle associated with the barcode, wherein N comprises an integer greater than 3, and wherein the orientation angle is selected based on a probability metric. Of course, other claims and combinations are provided too.

35. 发明授权

US10515429B2 Image-based pose determination 有权
公开(公告)号：US10515429B2
公开(公告)日：2019-12-24
申请号：US15641081
申请日：2017-07-03
申请人： Digimarc Corporation
发明人： Geoffrey B. Rhoads , Tony F. Rodriguez
IPC分类号： G06K9/00 , G06T1/00 , G06T7/73 , G06T7/32 , G06T3/00
摘要： A steganographic digital watermark signal is decoded from host imagery without requiring a domain transformation for signal synchronization, thereby speeding and simplifying the decoding operation. In time-limited applications, such as in supermarket point-of-sale scanners that attempt watermark decode operations on dozens of video frames every second, the speed improvement allows a greater percentage of each image frame to be analyzed for watermark data. In battery-powered mobile devices, avoidance of repeated domain transformations extends battery life. A great variety of other features and arrangements, including machine learning aspects, are also detailed.

36. 发明授权

US10459685B2 Methods and system for cue detection from audio input, low-power data processing and related arrangements 有权
公开(公告)号：US10459685B2
公开(公告)日：2019-10-29
申请号：US15893127
申请日：2018-02-09
申请人： Digimarc Corporation
发明人： Ravi K. Sharma , Shankar Thagadur Shivappa , Osama M. Alattar , Brett A. Bradley , Scott M. Long , Ajith M. Kamath , Vojtech Holub , Hugh L. Brunk , Robert G. Lyons , Aparna R. Gurijala
IPC分类号： G06F17/00 , G06F3/16 , G10L19/018 , G10L19/02 , G10L25/09 , G10L25/21
摘要： Methods and arrangements involving electronic devices, such as smartphones, tablet computers, wearable devices, etc., are disclosed. One arrangement involves a low-power processing technique for discerning cues from audio input. Another involves a technique for detecting audio activity based on the Kullback-Liebler divergence (KLD) (or a modified version thereof) of the audio input. Still other arrangements concern techniques for managing the manner in which policies are embodied on an electronic device. Others relate to distributed computing techniques. A great variety of other features are also detailed.

37. 发明授权

US10455112B2 Optimizing optical scanners for digital watermark detection 有权
公开(公告)号：US10455112B2
公开(公告)日：2019-10-22
申请号：US15670863
申请日：2017-08-07
申请人： Digimarc Corporation
发明人： Kristyn R. Falkenstern , Alastair M. Reed
IPC分类号： G06K19/00 , H04N1/32 , H04N1/48 , H04N1/028 , G06T1/00 , G06K19/06
摘要： The present disclosure relates generally to digital watermarking for retail product packaging. A digital watermark can be carried in different color channels, and at with different signal polarities. Detection can utilize different illumination sources or image sensors with various filters to highlight signal in one or more of the channels.

38. 发明授权

US10449797B2 Audio-based internet search methods and sub-combinations 有权
公开(公告)号：US10449797B2
公开(公告)日：2019-10-22
申请号：US11620999
申请日：2007-01-08
申请人： Geoffrey B. Rhoads
发明人： Geoffrey B. Rhoads
IPC分类号： G06F16/00 , B42D25/29 , G06K7/14 , G06K9/00 , G06K19/06 , G06K19/14 , G06Q20/34 , G06Q20/40 , G06Q30/02 , G06T1/00 , G07D7/004 , G07F7/08 , G07F7/10 , G07F17/16 , G07F17/26 , G11B20/00 , H04H20/31 , H04H20/93 , H04H60/63 , H04H60/74 , H04N1/00 , H04N1/32 , H04N7/173 , H04N21/2389 , H04N21/422 , H04N21/439 , H04N21/472 , H04N21/4722 , H04N21/81 , H04N21/8358 , G10L15/26 , G07D7/00 , G06F16/68 , G06F16/632 , G06F16/683 , G06F16/40 , B29C45/14 , H04H20/84
摘要： A portable device uses a microphone to listen to ambient audio, ascertains a corresponding identifier, and uses the identifier to enable one or more further functions. One of these can be internet search. Such functionality can also be based on digital data—without requiring a microphone-equipped device.

39. 发明授权

US10424038B2 Signal encoding outside of guard band region surrounding text characters, including varying encoding strength 有权
公开(公告)号：US10424038B2
公开(公告)日：2019-09-24
申请号：US15072884
申请日：2016-03-17
申请人： Digimarc Corporation
发明人： Vojtech Holub , Donald Haaga , Ravi K. Sharma , Jeffery B. Schulte , Eric D. Evans
IPC分类号： G06T1/00 , H04N1/32 , H04N19/467
摘要： The present disclosure relates to advanced image processing and encoded signal processing. One claim recites an image processing method comprising the acts: receiving a digital representation of product packaging artwork, comprised of pixels; defining a guard band region surrounding text characters included in the artwork, in which a first region encloses the guard band region, and a second region encloses the first region; and altering the artwork to redundantly encode a machine-readable plural-bit payload across different regions of the artwork. The altering only alters the artwork outside of the guard band region, wherein a strength of the encoding has a first value in the first region, and has a second, stronger, value in the second region. Of course, other claims and combinations are described as well.

40. 发明授权

US10303988B1 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
申请人： Digimarc Corporation
发明人： Scott M. Long , Geoffrey B. Rhoads
IPC分类号： G06K9/68 , H04N1/00 , G06K9/00 , H04N1/387 , H04N5/232 , G06T1/00 , G06K9/62 , G06T11/60 , H04N19/467 , H04N19/44 , G06T3/40
摘要： 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.

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