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1. 发明申请

US20220012840A1 DIGITAL WATERMARKING AND DATA HIDING WITH NARROW-BAND ABSORPTION MATERIALS 有权
公开(公告)号：US20220012840A1
公开(公告)日：2022-01-13
申请号：US17372261
申请日：2021-07-09
申请人： Digimarc Corporation
发明人： Kristyn R. Falkenstern , Alastair M. Reed , Vojtech Holub , Tony F. Rodriguez
IPC分类号： G06T1/00 , G06K7/12 , G06K19/06 , G07D7/00 , G07D7/1205
摘要： The present disclosure relates to signal processing such as image processing, signal encoding, digital watermarking and data hiding. A sparse or dense digital watermark signal can be conveyed with a narrow-band absorption material corresponding to a center wavelength of a Point of Sale (POS) barcode scanner. The POS barcode scanner typically captures 2D imagery. Since the narrow-band absorption material absorbs over a narrow-band it is relatively imperceptible to the Human Visual System (HVS) but can be seen by the POS scanner.

2. 发明申请

US20220012838A1 UTILIZING DEPENDENCY BETWEEN WATERMARK VISIBILITY AND LOCATION OF IMAGE SAMPLE IN COLOR SPACE FOR EMBEDDED SIGNAL COLOR DIRECTION 有权
公开(公告)号：US20220012838A1
公开(公告)日：2022-01-13
申请号：US17358873
申请日：2021-06-25
申请人： Digimarc Corporation
发明人： Alastair M. Reed , Kristyn R. Falkenstern
IPC分类号： G06T1/00
摘要： The present disclosure relates generally to signal encoding for printed objects. One implementation selects an embed direction based on a minimal visibility axis of a 1 JND ellipse at a certain color center. One claim recites an apparatus comprising: memory for storing chromatic contrast sensitivity data representing multiple color encoding angles; one or more multi-core processors configured for: using the stored chromatic contrast sensitivity data, generating an ellipse around a first color center; and from the ellipse, determining a signal encode direction, the signal encode direction comprising an angle α representing a negative angle between the ‘a*’ axis in an CIELAB space and a direction of minimum sensitivity of an encoded signal, in which the angle α comprises −9 degrees≥α≥−25 degrees. Other technology described.

3. 发明申请

US20210366073A1 SIGNAL ENCODING FOR DIFFICULT ENVIRONMENTS 有权
公开(公告)号：US20210366073A1
公开(公告)日：2021-11-25
申请号：US17334206
申请日：2021-05-28
申请人： Digimarc Corporation
发明人： Kristyn R. Falkenstern , Alastair M. Reed
IPC分类号： G06T1/00 , H04N1/32
摘要： This disclosure relates to advanced image signal processing technology including encoded signals and digital watermarking. We disclose methods, systems and apparatus for selecting which ink(s) should be selected to carry an encoded signal for a given machine-vision wavelength for a retail package or other printed design. We also disclose retail product packages and other printed objects, and methods to generate such, including a sparse mark in a first ink and an overprinted ink flood in a second ink. The first ink and the second ink are related through tack and spectral reflectance difference. Of course, other methods, packages, objects, systems and apparatus are described in this disclosure.

4. 发明申请

US20210347191A1 COUNTERFEIT DETECTION USING MACHINE READABLE INDICIA 有权
公开(公告)号：US20210347191A1
公开(公告)日：2021-11-11
申请号：US17240712
申请日：2021-04-26
申请人： Digimarc Corporation
发明人： Kristyn R. Falkenstern , Alastair M. Reed , Tomas Filler
IPC分类号： B41M3/14 , C09D11/50 , C09D11/037 , G06T1/00
摘要： This disclosure relates to counterfeit detection and deterrence using advanced signal processing technology including steganographic embedding and digital watermarking. Digital watermark can be used on consumer products, labels, logos, hang tags, stickers and other objects to provide counterfeit detection mechanisms.

5. 发明授权

US11062418B2 Digital watermarking and data hiding with narrow-band absorption materials 有权
公开(公告)号：US11062418B2
公开(公告)日：2021-07-13
申请号：US16422597
申请日：2019-05-24
申请人： Digimarc Corporation
发明人： Kristyn R. Falkenstern , Alastair M. Reed , Vojtech Holub , Tony F. Rodriguez
IPC分类号： G06T1/00 , G06K7/12 , G06K19/06 , G07D7/1205 , G07D7/00 , B42D25/333
摘要： The present disclosure relates to signal processing such as image processing, signal encoding, digital watermarking and data hiding. Technology includes a method comprising: capturing imagery corresponding to a printed object with a red illumination scanner, the red illumination scanner having a wavelength at or around 660 nm, said scanning yielding scan data, wherein the printed object includes a process color printed thereon through an offset or flexo printing press, the process color including a narrow-band absorption material that has a peak absorbance at or around 660 nm, the process color printed in a manner to convey an encoded plural-bit message, the encoded plural-bit message corresponding to a GTIN number; analyzing the imagery with one or more programmed multi-core processors to decode the encoded plural bit message, said analyzing yielding the GTIN number; and providing the GTIN number as an output. Of course other combinations and technology is also provided.

6. 发明申请

US20210042483A1 COORDINATED ILLUMINATION AND IMAGE SIGNAL CAPTURE FOR ENHANCED SIGNAL DETECTION 有权
公开(公告)号：US20210042483A1
公开(公告)日：2021-02-11
申请号：US16927730
申请日：2020-07-13
申请人： Digimarc Corporation
发明人： Jacob L. Boles , Alastair M. Reed , John D. Lord
IPC分类号： G06K7/10 , G06F16/955 , G06K9/20 , H04N1/48 , H04N1/40 , G06K7/12 , H04N5/225 , H04N9/73 , G06K7/14 , H04N5/33
摘要： Signal detection and recognition employees coordinated illumination and capture of images under to facilitate extraction of a signal of interest. Pulsed illumination of different colors facilitates extraction of signals from color channels, as well as improved signal to noise ratio by combining signals of different color channels. The successive pulsing of different color illumination appears white to the user, yet facilitates signal detection, even for lower cost monochrome sensors, as in barcode scanning and other automatic identification equipment.

7. 发明授权

US10783602B1 Signal encoding for inks with low reflectivity 有权
公开(公告)号：US10783602B1
公开(公告)日：2020-09-22
申请号：US15905631
申请日：2018-02-26
申请人： Digimarc Corporation
发明人： Alastair M. Reed , Kristyn R. Falkenstern
IPC分类号： G06T1/00 , H04N1/32
摘要： This disclosure relates to advanced image signal processing technology including encoded signals and digital watermarking. One claim recites a printed object comprising a machine-readable signal therein, the printed object comprising: a substrate; a first color printed on a substrate, the first color printed on the substrate so as to include holes without the first color, the holes arranged corresponding to the 2-d spatial pattern representing the machine-readable signal; a second color printed in the holes, in which the first color and the second color comprise a spectral reflectance difference at or around 660nm in the range of 8%-60%, in which the second color is printed in the holes with a trap of 1-4 pixels, and in which the machine-readable signal is detectable from image data captured with red-light illumination, the red-light illumination comprising a peak illumination at or around 660nm, in which the trap comprises a spread trap, in which the second color overlaps the first color. The technology may be applied to retail packages and other printed objects, e.g., such as hang tags, labels and receipts.

8. 发明申请

US20200279084A1 METHODS AND ARRANGEMENTS FOR IDENTIFYING OBJECTS 审中-公开
公开(公告)号：US20200279084A1
公开(公告)日：2020-09-03
申请号：US16821953
申请日：2020-03-17
申请人： Digimarc Corporation
发明人： Bruce L. Davis , Tony F. Rodriguez , Geoffrey B. Rhoads , John D. Lord , Alastair M. Reed , Eric D. Evans , Rebecca L. Gerlach , Yang Bai , John F. Stach , Tomas Filler , Marc G. Footen , Sean C. Calhoon
IPC分类号： G06K7/10 , G06K7/14 , G06K9/18 , G06K9/20 , G06K9/78 , G06Q30/00 , G07G1/00 , G06Q20/20 , G06K9/00 , G06Q10/08
摘要： In some arrangements, product packaging is digitally watermarked over most of its extent to facilitate high-throughput item identification at retail checkouts. Imagery captured by conventional or plenoptic cameras can be processed (e.g., by GPUs) to derive several different perspective-transformed views—further minimizing the need to manually reposition items for identification. Crinkles and other deformations in product packaging can be optically sensed, allowing such surfaces to be virtually flattened to aid identification. Piles of items can be 3D-modelled and virtually segmented into geometric primitives to aid identification, and to discover locations of obscured items. Other data (e.g., including data from sensors in aisles, shelves and carts, and gaze tracking for clues about visual saliency) can be used in assessing identification hypotheses about an item. A great variety of other features and arrangements are also detailed.

9. 发明授权

US10713456B2 Coordinated illumination and image signal capture for enhanced signal detection 有权
公开(公告)号：US10713456B2
公开(公告)日：2020-07-14
申请号：US16291366
申请日：2019-03-04
申请人： Digimarc Corporation
发明人： Jacob L. Boles , Alastair M. Reed , John D. Lord
IPC分类号： G06K9/00 , G06K7/10 , G06F16/955 , G06K9/20 , H04N1/48 , H04N1/40 , G06K7/12 , H04N5/225 , H04N9/73 , G06K7/14 , H04N5/33
摘要： Signal detection and recognition employees coordinated illumination and capture of images under to facilitate extraction of a signal of interest. Pulsed illumination of different colors facilitates extraction of signals from color channels, as well as improved signal to noise ratio by combining signals of different color channels. The successive pulsing of different color illumination appears white to the user, yet facilitates signal detection, even for lower cost monochrome sensors, as in barcode scanning and other automatic identification equipment.

10. 发明申请

US20200160480A1 Addressing Visibility for Encoded Signals 审中-公开
公开(公告)号：US20200160480A1
公开(公告)日：2020-05-21
申请号：US16428793
申请日：2019-05-31
申请人： Digimarc Corporation
发明人： Alastair M. Reed , John F. Stach
IPC分类号： G06T1/00 , H04N19/467 , H04N19/136 , G06T7/90
摘要： The present disclosure relates generally improving visibility artifacts associated with encoded signals. A visibility change for local image areas associated with an encoded signal can be determined through use of a plurality of channel-specific contrast sensitivity functions. Of course, other features, and related claims and combinations are provided as well.

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