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    SIGNAL ENCODING FOR DIFFICULT ENVIRONMENTS
    23.
    发明申请
    SIGNAL ENCODING FOR DIFFICULT ENVIRONMENTS 审中-公开

    公开(公告)号：US20200082489A1

    公开(公告)日：2020-03-12

    申请号：US16378232

    申请日：2019-04-08

    Applicant: Digimarc Corporation

    Inventor： Kristyn R. Falkenstern ,  Alastair M. Reed

    IPC: G06T1/00 ,  H04N1/32

    Abstract: 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.

    Signal encoding for difficult environments
    24.
    发明授权
    Signal encoding for difficult environments 有权

    公开(公告)号：US10304149B2

    公开(公告)日：2019-05-28

    申请号：US15261005

    申请日：2016-09-09

    Applicant: Digimarc Corporation

    Inventor： Kristyn R. Falkenstern ,  Alastair M. Reed

    IPC: G06K9/00 ,  G06T1/00 ,  H04N19/467 ,  H04N19/186 ,  H04N19/65 ,  H04N1/32 ,  H04N1/38

    Abstract: 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 package design. We also disclose product packages, 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, systems and apparatus are described in this disclosure.

    MACHINE-READABLE GLASS
    26.
    发明申请
    MACHINE-READABLE GLASS 审中-公开

    公开(公告)号：US20170249540A1

    公开(公告)日：2017-08-31

    申请号：US15460518

    申请日：2017-03-16

    Applicant: Digimarc Corporation

    Inventor： Alastair M. Reed ,  Kristyn R. Falkenstern

    IPC: G06K19/06 ,  G06K7/10

    CPC classification number: G06K19/06037 ,  G06K7/1095

    Abstract: In one embodiment, a sidewalk-facing display window of a retail store is treated to scatter (or absorb) a portion of incident light, in a narrow wavelength spectral band. A machine-readable pattern, which encodes an identifier, is projected onto the treated window from outside the store. The reflection (absorption) of that projected pattern, within the narrow spectral band, escapes notice of shoppers on the sidewalk. Yet if a shopper captures imagery of a product displayed on the other side of the display window, using a mobile device camera, the pattern is captured with the imagery, and can be analyzed to decode the identifier. The mobile device can use this decoded identifier to access online information about the displayed product, for presentation to the shopper on the mobile device display. The technology is particularly suited for wearable computing devices, and more generally enables glass windows to subliminally convey digital information to image sensors conveyed by passing shoppers. A great variety of other features and arrangements are also detailed.

    DIGITAL WATERMARKING AND DATA HIDING WITH NARROW-BAND ABSORPTION MATERIALS
    28.
    发明申请
    DIGITAL WATERMARKING AND DATA HIDING WITH NARROW-BAND ABSORPTION MATERIALS 有权
    数字水印和数据采用窄带吸收材料

    公开(公告)号：US20160275326A1

    公开(公告)日：2016-09-22

    申请号：US15073483

    申请日：2016-03-17

    Applicant: Digimarc Corporation

    Inventor： Kristyn R. Falkenstern ,  Alastair M. Reed ,  Vojtech Holub ,  Tony F. Rodriguez

    IPC: G06K7/14 ,  G06K7/10 ,  G06T1/00

    CPC classification number: G06T1/0021 ,  B42D25/333 ,  G06K7/12 ,  G06K19/06056 ,  G06K19/0614 ,  G07D7/00 ,  G07D7/0034 ,  G07D7/1205

    Abstract: The present disclosure relates to signal processing such as 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.

    Abstract translation: 本公开涉及诸如数字水印和数据隐藏的信号处理。 稀疏或密集的数字水印信号可以与对应于销售点（POS）条形码扫描器的中心波长的窄带吸收材料一起传送。 POS条码扫描器通常捕获2D图像。 由于窄带吸收材料吸收在窄带上，所以对于人类视觉系统（HVS）来说它是相对不可察觉的，但POS扫描仪可以看出。

    Full-color visibility model using CSF which varies spatially with local luminance
    29.
    发明授权
    Full-color visibility model using CSF which varies spatially with local luminance 有权
    使用CSF的全色可见性模型，其在局部亮度上空间变化

    公开(公告)号：US09401001B2

    公开(公告)日：2016-07-26

    申请号：US14588636

    申请日：2015-01-02

    Applicant: Digimarc Corporation

    Inventor： Alastair M. Reed ,  Yang Bai ,  Kristyn R. Falkenstern ,  David Berfanger

    IPC: G06K9/00 ,  G06T1/00 ,  H04N7/167

    CPC classification number: G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0083 ,  G06T2201/0202

    Abstract: The present disclosure relate generally to color science and digital watermarking. A full color visibility model has been developed which has good correlation to subjective visibility tests for color patches degraded with a watermark. A relatively better correlation can be achieved with a model that applies a luminance correction to the contrast sensitivity functions (CSF). The model can be applied during the watermark embed process, using a pyramid based method, to obtain equal visibility. Better robustness and visibility can be obtained with equal visibility embed than uniform strength embed. Of course, other features, combinations and claims are disclosed as well.

    Abstract translation: 本公开一般涉及彩色科学和数字水印。 已经开发了全色可见性模型，其与用水印降级的色斑的主观可见性测试具有良好的相关性。 使用向对比度敏感度函数（CSF）施加亮度校正的模型可以实现相对更好的相关性。 该模型可以在水印嵌入过程中应用，使用基于金字塔的方法，以获得相等的可见性。 可以通过均匀的强度嵌入具有相同的可见性嵌入来获得更好的鲁棒性和可见性。 当然，也公开了其它特征，组合和权利要求。

    Signal encoding for aluminum alloy containers
    30.
    发明授权
    Signal encoding for aluminum alloy containers 有权

    公开(公告)号：US11952173B2

    公开(公告)日：2024-04-09

    申请号：US18144525

    申请日：2023-05-08

    Applicant: Digimarc Corporation

    Inventor： Alastair M. Reed ,  Kristyn R. Falkenstern

    IPC: G06K19/06 ,  B41J3/413 ,  B41M3/00 ,  B41M3/10 ,  B42D25/333 ,  B65D1/12 ,  B65D1/40 ,  B65D25/34 ,  G06T1/00 ,  H04N1/32

    CPC classification number: B65D25/34 ,  B41J3/413 ,  B41M3/008 ,  B41M3/10 ,  B42D25/333 ,  B65D1/12 ,  B65D1/40 ,  G06K19/06037 ,  G06T1/0028 ,  H04N1/32336

    Abstract: This disclosure relates to advanced image signal processing technology including encoded signals and digital watermarking. One claim is directed to a container comprising: a 3004 or 3003 aluminum alloy shell, the shell comprising an outer surface and an inner surface; a first layer of transparent ink printed on the outer surface as a flood within a first region; a second layer of the transparent ink printed over the first layer of transparent ink within the first region, in which the second layer of the transparent ink is printed to include a plurality of holes without any transparent ink printed therein; an opaque ink printed within the plurality of holes of the second layer of transparent ink on first layer of transparent ink within the first region, in which: i) the outer surface/first layer/second layer, and ii) the outer surface/first layer/opaque ink comprise a spectral reflectance difference at a machine-vision wavelength in the range of 8%-35%, and in which the plurality of holes are arranged in a 2-dimensional pattern according to a machine-readable signal, the 2-dimensional pattern being machine-readable from imagery captured of the first region. Of course, other containers, methods, packages, objects, systems, technology and apparatus are described in this disclosure.

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