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    DETECTING ENCODED SIGNALS UNDER ADVERSE LIGHTING CONDITIONS USING ADAPTIVE SIGNAL DETECTION
    161.
    发明申请
    DETECTING ENCODED SIGNALS UNDER ADVERSE LIGHTING CONDITIONS USING ADAPTIVE SIGNAL DETECTION 审中-公开

    公开(公告)号：US20190108607A1

    公开(公告)日：2019-04-11

    申请号：US15948956

    申请日：2018-04-09

    Applicant: Digimarc Corporation

    Inventor： Alastair M. Reed ,  Brett A. Bradley

    IPC: G06T1/00 ,  H04N5/235 ,  H04N5/232

    Abstract: The present disclosure relates generally to signal detection adaptable to accommodate various lighting conditions, and to embedding signals according to anticipated lighting conditions likely to be present during image capture. One claim recites a portable apparatus comprising: a camera for capturing data representing imagery or video; a touchscreen display; and one or more processors. The one or more processors are configured for: obtaining data representing imagery or video, the imagery or video having been captured with said camera; obtaining lighting information associated with image capture of the imagery or video, in which the lighting information is associated with a light level or color temperature; adapting an auxiliary data detector based on the lighting information; and controlling the adapted auxiliary data detector to process the data representing imagery or video to determine whether auxiliary data is encoded therein. Of course, additional disclosure, combinations and claims are also provided.

    Extending watermark detection distortion tolerances
    164.
    发明授权
    Extending watermark detection distortion tolerances 有权

    公开(公告)号：US09710870B2

    公开(公告)日：2017-07-18

    申请号：US14637121

    申请日：2015-03-03

    Applicant: Digimarc Corporation

    Inventor： Alastair M. Reed ,  Ravi K. Sharma

    IPC: G06K9/00 ,  G06T1/00

    CPC classification number: G06T1/005 ,  G06K9/00 ,  G06T1/00 ,  G06T1/0021 ,  G06T1/0085 ,  G06T2201/0051 ,  G06T2201/0065

    Abstract: 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.

    Machine-readable glass
    168.
    发明授权
    Machine-readable glass 有权

    公开(公告)号：US09600754B2

    公开(公告)日：2017-03-21

    申请号：US14971930

    申请日：2015-12-16

    Applicant: Digimarc Corporation

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

    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.

    Detection from two chrominance directions
    169.
    发明授权
    Detection from two chrominance directions 有权
    从两个色度方向检测

    公开(公告)号：US09582844B2

    公开(公告)日：2017-02-28

    申请号：US15005865

    申请日：2016-01-25

    Applicant: Digimarc Corporation

    Inventor： Alastair M. Reed

    IPC: G06K9/00 ,  G06T1/00 ,  H04N9/68

    CPC classification number: G06T1/005 ,  G06T1/0021 ,  G06T7/90 ,  G06T2201/0052 ,  G06T2201/0065 ,  G06T2207/10024 ,  G06T2207/20224 ,  H04B1/3833 ,  H04N9/68

    Abstract: The present disclosure relates generally to signal processing, including processing digital watermarking. One claim recites a detector apparatus comprising: memory for storing data representing color image data comprising red color data and green color data, in which the red color data comprises digital watermarking including a first polarity and the green color data comprises the digital watermarking including a second polarity that is inversely related to the first polarity; means for selectively weighting the red color data and the green color data so that the digital watermarking is emphasized while image content is de-emphasized when weighted red color data and weighted green color data are combined; means for detecting the digital watermarking from combined, weighted red color data and weighted green color data; and more or more processors configured for outputting data corresponding to detected digital watermarking. Of course, different combinations and claims are provided too.

    Abstract translation: 本公开一般涉及信号处理，包括处理数字水印。 一个权利要求记载检测器装置，包括：存储器，用于存储表示包括红色数据和绿色数据的彩色图像数据的数据，其中红色数据包括包括第一极性的数字水印，并且绿色数据包括数字水印，其包括第二 与第一极性成反比的极性; 用于选择性地加权红色数据和绿色数据的装置，使得当加权的红色数据和加权的绿色数据被组合时图像内容被去加强时，数字水印被强调; 用于从组合的加权红色数据和加权的绿色数据中检测数字水印的装置; 以及被配置为输出与检测到的数字水印相对应的数据的多个处理器。 当然，也提供不同的组合和权利要求。

    METHODS AND ARRANGEMENTS FOR IDENTIFYING OBJECTS
    170.
    发明申请
    METHODS AND ARRANGEMENTS FOR IDENTIFYING OBJECTS 审中-公开
    识别对象的方法和安排

    公开(公告)号：US20160364634A1

    公开(公告)日：2016-12-15

    申请号：US15175997

    申请日：2016-06-07

    Applicant: Digimarc Corporation

    Inventor： Bruce L. Davis ,  Tony F. Rodriguez ,  Geoffrey B. Rhoads ,  John D. Lord ,  Alastair M. Reed ,  Eric D. Evans ,  Rebecca L. Gerlach ,  Yang Bai ,  John Stach ,  Tomas Filler ,  Marc G. Footen ,  Sean Calhoon

    IPC: G06K9/78 ,  G07G1/00 ,  G06Q20/20 ,  G06K7/10 ,  G06Q10/08

    CPC classification number: G06K9/78 ,  G06F3/147 ,  G06K7/10861 ,  G06K7/1456 ,  G06K2017/0051 ,  G06K2017/0093 ,  G06Q10/08 ,  G06Q10/087 ,  G06Q20/201 ,  G06Q20/208 ,  G06Q30/00 ,  G06Q30/0601 ,  G07G1/0045

    Abstract: 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.

    Abstract translation: 在一些安排中，产品包装在其大部分程度上以数字水印方式，以促进零售结算处的高通量物品识别。 可以通过传统或全光照相机拍摄的图像（例如，通过GPU）来处理几个不同的透视变换视图 - 进一步最小化手动重新定位项目以进行识别的需要。 产品包装中的皱纹和其他变形可以光学感测，允许这些表面几乎变平，以帮助识别。 物品堆可以3D建模，并将其虚拟分割成几何图元，以帮助识别，并发现隐藏物品的位置。 可以使用其他数据（例如，包括来自在通道中的传感器的数据，架子和推车以及关于视觉显着性的线索的凝视跟踪）来评估关于物品的识别假设。 还详细介绍了各种各样的其他功能和安排。

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