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    IMAGE PROCESSING ARCHITECTURES AND METHODS
    34.
    发明申请
    IMAGE PROCESSING ARCHITECTURES AND METHODS 有权
    图像处理结构和方法

    公开(公告)号：US20130217440A1

    公开(公告)日：2013-08-22

    申请号：US13836166

    申请日：2013-03-15

    Applicant: Digimarc Corporation

    Inventor： John D. Lord ,  Geoffrey B. Rhoads ,  Tony F. Rodriguez

    IPC: G06K9/00 ,  H04M1/02

    CPC classification number: H04N5/23222 ,  G06F17/30244 ,  G06F19/00 ,  G06K9/00288 ,  G06K9/00577 ,  G06K9/228 ,  G06K9/4604 ,  G06K9/4647 ,  G06K9/4652 ,  G06K9/4671 ,  G06K9/6253 ,  H04M1/0202 ,  H04M1/0264 ,  H04N1/00307 ,  H04N1/2133 ,  H04N1/32101 ,  H04N5/23219 ,  H04N2101/00 ,  H04N2201/3225 ,  H04N2201/3274 ,  H04N2201/3278 ,  H04W4/50

    Abstract: Cell phones and other portable devices are equipped with a variety of technologies by which existing functionality is improved, and new functionality is provided. Some aspects relate to imaging architectures, in which a cell phone's image sensor is one in a chain of stages that successively act on instructions/data, to capture and later process imagery. Other aspects relate to distribution of processing tasks between the device and remote resources (“the cloud”). Elemental image processing, such as filtering and edge detection—and even some simpler template matching operations—may be performed on the cell phone. Other operations are referred out to remote service providers. The remote service providers can be identified using techniques such as a reverse auction, though which they compete for processing tasks. Other aspects of the disclosed technologies relate to visual search capabilities, and determining appropriate actions responsive to different image inputs. Still others concern metadata generation, processing, and representation. A great number of other features and arrangements are also detailed.

    Abstract translation: 手机和其他便携式设备配备有各种技术，通过该技术改进现有的功能，并提供新的功能。 一些方面涉及成像架构，其中手机的图像传感器是连续地作用在指令/数据上的阶段链中，以捕获和稍后处理图像。 其他方面涉及设备和远程资源（“云”）之间的处理任务分配。 可以在蜂窝电话上执行元素图像处理，例如滤波和边缘检测，甚至一些更简单的模板匹配操作。 其他操作被转交给远程服务提供商。 可以使用诸如反向拍卖的技术来识别远程服务提供商，尽管它们竞争处理任务。 所公开技术的其他方面涉及视觉搜索能力，并且响应于不同的图像输入来确定适当的动作。 还有一些涉及元数据生成，处理和表示。 还详细介绍了许多其他功能和安排。

    Mobile device indoor navigation
    35.
    发明授权
    Mobile device indoor navigation 有权

    公开(公告)号：US11604247B2

    公开(公告)日：2023-03-14

    申请号：US16377700

    申请日：2019-04-08

    Applicant: Digimarc Corporation

    Inventor： Brett A. Bradley ,  Ravi K. Sharma ,  Shankar Thagadur Shivappa ,  John D. Lord

    IPC: G01S5/18

    Abstract: Mobile device positioning employs various forms of audio signal structures and detection methodologies. In one method, detection of an audio signal from a first source enables construction of a signal to facilitate detection of an audio signal from another source. Signals detected from these sources enable positioning of the mobile device receiving those signals. Another method forms audio signals transmitted from audio sources so that they have parts that add constructively and parts that differentiate the sources to enable positioning. Another audio signal based positioning method adaptively switches among positioning methods so that positioning remains operative as a mobile device moves toward and away from the sources. Another method tracks positioning history, evaluates it for errors and performs error mitigation to improve accuracy. Various other positioning technologies are detailed as well.

    Sensing systems
    36.
    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.

    Signal Processors and Methods for Estimating Geometric Transformations of Images for Digital Data Extraction
    37.
    发明申请
    Signal Processors and Methods for Estimating Geometric Transformations of Images for Digital Data Extraction 有权

    公开(公告)号：US20220180466A1

    公开(公告)日：2022-06-09

    申请号：US17479910

    申请日：2021-09-20

    Applicant: Digimarc Corporation

    Inventor： Ravi K. Sharma ,  John D. Lord ,  Robert G. Lyons ,  Osama M. Alattar ,  Jacob L. Boles

    IPC: G06T1/00 ,  G06V10/75 ,  G06T3/00

    Abstract: Signal processing devices and methods estimate a geometric transform of an image signal. From a seed set of transform candidates, a direct least squares method applies a seed transform candidate to a reference signal and then measures correlation between the transformed reference signal and an image signal in which the reference signal is encoded. Geometric transform candidates encompass differential scale and shear, which are useful in approximating a perspective transform. For each candidate, update coordinates of reference signal features are identified in the image signal and provided as input to a least squares method to compute an update to the transform candidate. The method iterates so long as the update of the transform provides a better correlation. At the end of the process, the method identifies a geometric transform or set of top transforms based on a further analysis of correlation, as well as other results. Phase characteristics are exploited in the process of updating coordinates and measuring correlation. The geometric transform is used as an approximation of the geometric distortion of an image after digital data is encoded in it, and is used to compensate for this distortion to facilitate extracting embedded digital messages from the image. Due to the errors in the approximation, a signal confidence metric is determined and used to weight message symbol estimates extracted from the image.

    RECYCLING METHODS AND SYSTEMS, AND RELATED PLASTIC CONTAINERS
    38.
    发明申请
    RECYCLING METHODS AND SYSTEMS, AND RELATED PLASTIC CONTAINERS 有权

    公开(公告)号：US20220027590A1

    公开(公告)日：2022-01-27

    申请号：US17393227

    申请日：2021-08-03

    Applicant: Digimarc Corporation

    Inventor： Ravi K. Sharma ,  Tomas Filler ,  Vojtech Holub ,  Osama M. Alattar ,  Hugh L. Brunk ,  John D. Lord ,  Matthew M. Weaver ,  William Y. Conwell

    IPC: G06K7/14 ,  G06T7/00 ,  G06K9/20

    Abstract: A plastic item, such as a beverage bottle, conveys two distinct digital watermarks, encoded using two distinct signaling protocols. A first, printed label watermark conveys a retailing payload, including a Global Trade Item Number (GTIN) used by a point-of-sale scanner in a retail store to identify and price the item when presented for checkout. A second, plastic texture watermark conveys a recycling payload, including data identifying the composition of the plastic. The use of two different signaling protocols assures that a point-of-sale scanner will not spend its limited time and computational resources working to decode the recycling watermark, which lacks the data needed for retail checkout. In some embodiments, a recycling apparatus makes advantageous use of both types of watermarks to identify the plastic composition of the item (e.g., relating GTIN to plastic type using an associated database), thereby increasing the fraction of items that are correctly identified for sorting and recycling. A great number of other features and arrangements are also detailed.

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