Encoding in two chrominance directions
    31.
    发明授权
    Encoding in two chrominance directions 有权
    编码在两个色度方向

    公开(公告)号:US09245308B2

    公开(公告)日:2016-01-26

    申请号:US14189617

    申请日:2014-02-25

    Inventor: Alastair M. Reed

    Abstract: The present disclosure relates generally to advanced digital signal processing including digital watermarking. One claim recites an apparatus comprising: memory for storing a color video signal or color image signal comprising first data representing a first chrominance direction and second data representing a second chrominance direction; and a processor programmed for: transforming the first data representing the first chrominance direction by encoding a first digital watermark component in the first data, the encoding a first digital watermark component in the first data utilizing a first encoding gain, and transforming the second data representing the second chrominance direction by encoding a second digital watermark component in the second data, the encoding a digital watermark signal in the second data utilizing a second encoding gain, wherein the second digital watermark component comprises an inverted signal relative to the first digital watermark component. Of course, other claims and combinations are disclosed.

    Abstract translation: 本公开一般涉及包括数字水印的高级数字信号处理。 一个权利要求记载一种装置,包括:用于存储彩色视频信号或彩色图像信号的存储器,包括表示第一色度方向的第一数据和表示第二色度方向的第二数据; 以及处理器,其被编程为:通过对第一数据中的第一数字水印分量进行编码来变换表示第一色度方向的第一数据,利用第一编码增益对第一数据中的第一数字水印分量进行编码,以及变换表示 第二色度方向,通过对第二数据中的第二数字水印分量进行编码,利用第二编码增益对第二数据中的数字水印信号进行编码,其中第二数字水印分量包括相对于第一数字水印分量的反相信号。 当然,公开了其他权利要求和组合。

    ASSESSMENT OF CAMERA PHONE DISTORTION FOR DIGITAL WATERMARKING
    32.
    发明申请
    ASSESSMENT OF CAMERA PHONE DISTORTION FOR DIGITAL WATERMARKING 有权
    摄像机电话失真对数字水印的评估

    公开(公告)号:US20150242985A1

    公开(公告)日:2015-08-27

    申请号:US14579371

    申请日:2014-12-22

    Inventor: Alastair M. Reed

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

    Abstract: The present disclosure relates generally to cell phones and cameras, and to digital watermarking involving such cell phones and cameras. One claim recites a method comprising: measuring distortion introduced by a cell phone camera; using a programmed electronic processor, quantifying the distortion; and providing quantified distortion as feedback to adjust a digital watermark embedding process in view of the distortion introduced by the cell phone camera. The act of quantifying distortion may include, e.g., quantifying a spatial frequency response (SFR) of the cell phone camera. Of course, other claims and combinations are provided too.

    Abstract translation: 本公开一般涉及蜂窝电话和相机,以及涉及这种蜂窝电话和相机的数字水印。 一个权利要求描述了一种方法,包括:测量由手机摄像机引入的失真; 使用编程的电子处理器,量化失真; 并且考虑到由手机摄像机引入的失真,提供量化失真作为反馈以调整数字水印嵌入处理。 量化失真的动作可以包括例如量化手机摄像机的空间频率响应(SFR)。 当然,也提供其他权利要求和组合。

    Signal encoding for aluminum alloy containers

    公开(公告)号:US11665302B1

    公开(公告)日:2023-05-30

    申请号:US17551718

    申请日:2021-12-15

    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 3004 or 3003 aluminum alloy shell comprising an outer surface and an inner surface; a 5182 aluminum alloy lid attached to the 3004 or 3003 aluminum alloy shell; and an opaque ink printed on the outer surface in a 2-dimensional pattern according to a machine-readable signal. The outer surface and the opaque ink printed on the outer surface comprise a spectral reflectance difference at a machine-vision wavelength in a range of 8%-30%, and the machine-readable signal is detectable from imagery representing the opaque ink printed on the outer surface. Of course, other containers, technology, methods, packages, objects, systems and apparatus are described in this disclosure.

    Signal encoding for difficult environments

    公开(公告)号:US11023992B2

    公开(公告)日:2021-06-01

    申请号:US16378232

    申请日:2019-04-08

    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.

    Digital watermarking and signal encoding with activable compositions

    公开(公告)号:US10783601B1

    公开(公告)日:2020-09-22

    申请号:US15979272

    申请日:2018-05-14

    Abstract: The present disclosure relates to signal processing such as digital watermarking and other encoded signals. One claim recites a method of offsetting color casting for a printed object associated with a retail product. The method includes: providing a first additive that absorbs light energy at or around a center wavelength of an illumination source; providing a second additive that absorbs in the ultra-violet spectrum, yet fluoresces at or around the center wavelength of the illumination source, wherein a combination of spectral responses of the first additive and the second additive offset color casting; printing the first additive, second additive and a color on the printed object, wherein the printing conveys an encoded plural bit signal. Of course, other claims and combinations are provided in the specification with reference to specific implementations and related examples.

    Signal encoding to reduce perceptibility of changes over time

    公开(公告)号:US10664940B2

    公开(公告)日:2020-05-26

    申请号:US16242805

    申请日:2019-01-08

    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.

    Embedding Signals in a Raster Image Processor

    公开(公告)号:US20200160481A1

    公开(公告)日:2020-05-21

    申请号:US16455622

    申请日:2019-06-27

    Abstract: Image processing technology embeds signal (e.g., digital watermarks) within imagery during a raster image process(or). One claim recites: an image processing method of embedding a signal within imagery using a raster image processing (RIP), comprising: obtaining a plurality of elements representing a signal; and modulating a plurality of print structures within the RIP according to the plurality of elements, in which said modulating varies density, and direction or angle, of the plurality of print structures, and in which said modulating introduces the signal within the imagery. Of course, other claims, combinations and technology are described too.

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