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31.发明申请公开(公告)号：US20200288036A1
公开(公告)日：2020-09-10
申请号：US16785286
申请日：2020-02-07
Applicant: Digimarc Corporation
Inventor： Vojtech Holub , Tomas Filler
Abstract: The disclosure relates to image processing and embedding machine-readable codes into image data. One combination estimates embedded signal strength from embedded image data transformed according to anticipated color space, printer data and/or substrate data. Other combinations are also provided.
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32.发明申请公开(公告)号：US20190287226A1
公开(公告)日：2019-09-19
申请号：US16362296
申请日：2019-03-22
Applicant: Digimarc Corporation
Inventor： Vojtech Holub
Abstract: An image processing method determines a geometric transform of a suspect image by efficiently evaluating a large number of geometric transform candidates in environments with limited processing resources. Processing resources are conserved by using complementary methods for determining a geometric transform of an embedded signal. One method excels at higher geometric distortion, and specifically, distortion caused by greater tilt angle of a camera. Another method excels at lower geometric distortion, for weaker signals. Together, the methods provide a more reliable detector of an embedded data signal in image across a larger range of distortion while making efficient use of limited processing resources in mobile devices.
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公开(公告)号：US10304151B2
公开(公告)日：2019-05-28
申请号：US15669103
申请日：2017-08-04
Applicant: Digimarc Corporation
Inventor： Kristyn R. Falkenstern , Alastair M. Reed , Vojtech Holub , Tony F. Rodriguez
IPC: G06K19/06 , G06T1/00 , G06K7/12 , G07D7/00 , G07D7/1205 , B42D25/333
Abstract: 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.
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公开(公告)号：US10198648B1
公开(公告)日：2019-02-05
申请号：US15094925
申请日：2016-04-08
Applicant: Digimarc Corporation
Inventor： Brett A. Bradley , Ajith M. Kamath , Tomas Filler , Vojtech Holub
Abstract: The present disclosure relates to advanced image signal processing technology including: i) rapid localization for machine-readable indicia including, e.g., 1-D and 2-D barcodes; and ii) barcode reading and decoders. One claim recites: a method for constructing a symbol template for use by a 1-dimensional (1D) barcode decoder, the barcode decoder configured for processing image data suspected of including a 1D barcode, said method comprising: obtaining a first symbol pattern representing a first symbol, the first symbol pattern comprising a plurality of elements, with each element corresponding to a 1D barcode space or bar; obtaining prefix elements, the prefix elements comprising a subset of second symbol elements from a second symbol pattern which precedes the first symbol from within a scanline of image data; extending the first symbol pattern with the prefix to yield an overlapping symbol template; and providing the overlapping symbol template for use in correlation-based barcode decoding by the 1D barcode decoder. Of course other combinations and claims are provided too.
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35.发明申请公开(公告)号：US20180246696A1
公开(公告)日：2018-08-30
申请号：US15893127
申请日：2018-02-09
Applicant: Digimarc Corporation
Inventor： 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
CPC classification number: G06F3/165 , G10L19/018 , G10L19/0212 , G10L25/09 , G10L25/21
Abstract: 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.
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Patent Agency Ranking
36.发明申请公开(公告)号：US20180131836A1
公开(公告)日：2018-05-10
申请号：US15655376
申请日：2017-07-20
Applicant: Digimarc Corporation
Inventor： Vojtech Holub , Tomas Filler
CPC classification number: H04N1/32149 , G06T1/0028 , G06T2201/0202
Abstract: The present disclosure relates to advanced signal processing including signal embedding, digital watermarking and steganography. One method includes: obtaining image data representing imagery; using one or more multi-core processors, embedding a machine-readable signal into the image data, thereby generating transformed image data; obtaining substrate data, the substrate data associated with a substrate upon which the transformed image data is to be printed upon; obtaining printer data, the printer data associated with a printer that is anticipated to print the transformed image data upon the substrate; processing the transformed image data with reference to the substrate data and the printer data, thereby generating processed, transformed image data; estimating a signal strength of the machine-readable signal embedded within the processed, transformed image data, in which said estimating yields an estimated signal strength; and visually displaying the estimated signal strength spatially relative to the image data. Of course, other combinations are described as well.
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公开(公告)号：US20170024840A1
公开(公告)日：2017-01-26
申请号：US15072884
申请日：2016-03-17
Applicant: Digimarc Corporation
Inventor： Vojtech Holub , Donald Haaga , Ravi K. Sharma , Jeffrey B. Schulte , Eric D. Evans
Abstract: The present disclosure relates to advanced image processing and encoded signal processing. One claim currently recites an image processing method comprising the acts: receiving a digital representation of artwork, the artwork having an area of uniform color; generating a two-dimensional data signal that redundantly encodes a plural-bit message, the data signal comprising plural elements, each of which has a single bit value; receiving a two-dimensional synchronization signal comprising plural elements, each of which has a plural-bit value, each element of said data signal having an element of the synchronization signal corresponding thereto; processing the two-dimensional data signal with the two-dimensional synchronization signal and with a gradient function to yield a two-dimensional gradient marking signal; and printing an ink counterpart of the gradient marking signal on a medium with the artwork, said printing comprising printing plural dithered two-dimensional blocks of at least four contiguous elements each, in which one or more elements of each block are printed to be dark. Of course, other claims and combinations are described as well.
Abstract translation: 本公开涉及高级图像处理和编码信号处理。 一个声称当前背诵包括以下动作的图像处理方法：接收艺术品的数字表示，艺术品具有均匀颜色的区域; 生成对多位消息进行冗余编码的二维数据信号，所述数据信号包括多个元素，每个元素具有单个位值; 接收包括多个元素的二维同步信号，每个元素具有多位值，所述数据信号的每个元素具有与其对应的同步信号的元素; 用二维同步信号和梯度函数处理二维数据信号以产生二维梯度标记信号; 并且在具有所述图形的介质上印刷所述梯度标记信号的墨水对应物，所述打印包括打印每个块的至少四个连续元件的多个抖动二维块，其中每个块的一个或多个元件被打印为较暗。 当然，还描述了其它权利要求和组合。
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公开(公告)号：US09521291B2
公开(公告)日：2016-12-13
申请号：US14332739
申请日：2014-07-16
Applicant: Digimarc Corporation
Inventor： Vojtech Holub , Tomas Filler
CPC classification number: G06T1/005 , G06K9/66 , G06T2201/0065 , G06T2201/0601 , H04N1/32154 , H04N1/32197 , H04N1/32352
Abstract: The present disclosures relates generally to digital watermarking and data hiding. One claim recites a method comprising: obtaining data representing captured imagery, the captured imagery depicting packaging including digital watermarking, the digital watermarking including an orientation signal that is detectable in a transform domain; generating a n-dimensional feature set of the data representing captured imagery, the n-dimensional feature set representing the captured imagery in a spatial domain, where n is an integer great than 13; using a trained classifier to predict the presence of the orientation signal in a transform domain from the feature set in the spatial domain. Of course, other claims and combinations are provided too.
Abstract translation: 本公开一般涉及数字水印和数据隐藏。 一个权利要求描述了一种方法，包括：获得表示所捕获的图像的数据，所捕获的图像描绘包括数字水印的包装，所述数字水印包括在变换域中可检测的取向信号; 生成表示所捕获图像的数据的n维特征集，所述n维特征集表示在空间域中捕获的图像，其中n是大于13的整数; 使用经过训练的分类器来预测来自空间域中的特征集的变换域中的取向信号的存在。 当然，也提供其他权利要求和组合。
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公开(公告)号：US12296525B2
公开(公告)日：2025-05-13
申请号：US17347358
申请日：2021-06-14
Applicant: Digimarc Corporation
Inventor： Tomas Filler , Vojtech Holub , Hugh L. Brunk , Ravi K. Sharma
IPC: B29C33/38 , B29C33/10 , B29C33/42 , B29C45/26 , B29C45/37 , B29C51/30 , B29C51/40 , B29C59/00 , B29C59/02 , B42D25/333 , G06K19/06 , B29K101/12
Abstract: A thermoplastic resin, such as PET, is molded to define a 2D code signal, such as a digital watermark pattern. The mold can comprise an array of hole or spike features, some of which are directly vented to atmospheric pressure. A network of channels can link the other features to the directly-vented features, so all features are vented. A mold comprising spike features can form a digital watermark pattern on an item such that the watermark payload is decodable both from the side of the item that contacted the mold, and also from the opposite, non-contact side of the item. To aid entry of viscous thermoplastic among the very fine elemental features of a mold representing a watermark signal pattern, the features can be overlapped, forming a connected binary mark having larger features. A variety of other improvements and arrangements are also detailed.
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公开(公告)号：US20240364983A1
公开(公告)日：2024-10-31
申请号：US18635899
申请日：2024-04-15
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: H04N23/00 , B29B17/02 , B29K23/00 , B29K67/00 , B29L31/00 , G06F21/16 , G06Q10/30 , G06V10/141 , G06V10/143 , G06V10/60 , G06V20/64 , G09C5/00 , H04N21/2389 , H04N21/44 , H04N21/8358
CPC classification number: H04N23/00 , B29B17/02 , G06F21/16 , G06Q10/30 , G06V10/141 , G06V10/143 , G06V10/60 , G06V20/653 , G09C5/00 , H04N21/23892 , H04N21/44008 , H04N21/8358 , B29B2017/0203 , B29B2017/0279 , B29B2017/0282 , B29K2023/065 , B29K2067/003 , B29L2031/7158 , H04L2209/34 , H04L2209/608 , Y02W30/62 , Y02W30/82 , Y02W90/00
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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