Signal encoding for physical objects including dark ink

    公开(公告)号:US11354767B2

    公开(公告)日:2022-06-07

    申请号:US16785351

    申请日:2020-02-07

    Abstract: This disclosure relates to advanced image signal processing technology including encoded signals and digital watermarking. One implementation is directed a printed object comprising: a substrate comprising a first area; a first colored ink or design printed within the first area, the first colored ink or design comprising a spectral reflectivity of less than or equal to 20% at or around 660 nm; a colored ink mixture printed over the first colored ink or design at a first plurality of spatial locations within the first area, the colored ink mixture printed such that the first area comprises a second plurality of spatial locations without the colored ink mixture, the colored ink mixture comprising opaque white ink and a first colorant, wherein the color ink mixture comprises a spectral reflectivity greater than the first colored ink or design at or around 660 nm, and wherein colored ink mixture comprises a spectral reflectivity less than the first colored ink or design in the range of 495 nm-570 nm; in which the first plurality of spatial locations is arranged in a pattern conveying an encoded signal, and in which the first colored ink or design and the colored ink mixture comprise a spectral reflectivity difference at or around 660 nm in a difference range of 8%-30%. Of course, other objects, methods, packages, labels, containers, systems and apparatus are described in this patent document.

    Embedding signals in a raster image processor

    公开(公告)号:US11238556B2

    公开(公告)日:2022-02-01

    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 raster image processing (RIP), including: obtaining a plurality of elements representing a signal; determining edges within the imagery; using the determined edges as a reference, modulating a plurality of print structures within the RIP according to the plurality of elements to embed the signal within the imagery, in which one determined edge defines the signal to be at a predetermined angle in a set of dimensions comprising color and spatial frequency. Of course, other claims, combinations and technology are described too.

    Signal encoding based on spectral requirements

    公开(公告)号:US11010857B2

    公开(公告)日:2021-05-18

    申请号:US16586063

    申请日:2019-09-27

    Abstract: This disclosure relates to advanced image signal processing technology including encoded signals and digital watermarking. A printed object is provided including: a white substrate or printed white background comprising a first area; an ink mixture printed at a first plurality of spatial locations within the first area, the ink mixture printed such that the first area comprises a second plurality of spatial locations without the ink mixture, in which the first plurality of spatial locations is arranged in a 2-dimensional pattern conveying an encoded signal. The white substrate or white background and the ink mixture comprise a spectral reflectivity difference at or around 660 nm in a difference range of 8%-30%. Of course, other implementations, methods, packages, systems and apparatus are described in this patent document.

    Signal encoding for difficult environments

    公开(公告)号:US10580103B1

    公开(公告)日:2020-03-03

    申请号:US15851143

    申请日:2017-12-21

    Abstract: This disclosure relates to advanced image signal processing technology including encoded signals and digital watermarking. One implementation is directed to a method comprising: obtaining data representing a color area; determining that the data representing the color area, or information obtained by using the data representing the color area, indicates that the color area comprises a reflectivity of 15 percent (%) or less at or around 660 nm; generating an encoded signal, the encoded signal comprising a pattern including signal elements at various spatial locations corresponding to the color area; generating holes in the color area according to the pattern, said generating holes yield an encoded color area; and selecting a fill color for placement within the holes of the encoded color area, said selecting utilizing an encoded signal error that is associated with the color area, the fill color, and a reflectance difference at or around 660 nm between the color area and the fill color, said selecting also utilizing a color error that is associated with the color area, the fill color, and the reflectance difference. Of course, other implementations, methods, packages, systems and apparatus are described in this patent document.

    Signal encoding for physical objects including dark ink

    公开(公告)号:US10559052B1

    公开(公告)日:2020-02-11

    申请号:US16226072

    申请日:2018-12-19

    Abstract: This disclosure relates to advanced image signal processing technology including encoded signals and digital watermarking. One implementation is directed a printed object comprising: a substrate comprising a first area; a first colored ink or design printed within the first area, the first colored ink or design comprising a spectral reflectivity of less than or equal to 20% at or around 660 nm; a colored ink mixture printed over the first colored ink or design at a first plurality of spatial locations within the first area, the colored ink mixture printed such that the first area comprises a second plurality of spatial locations without the colored ink mixture, the colored ink mixture comprising opaque white ink and a first colorant, wherein the color ink mixture comprises a spectral reflectivity greater than the first colored ink or design at or around 660 nm, and wherein colored ink mixture comprises a spectral reflectivity less than the first colored ink or design in the range of 495 nm-570 nm; in which the first plurality of spatial locations is arranged in a pattern conveying an encoded signal, and in which the first colored ink or design and the colored ink mixture comprise a spectral reflectivity difference at or around 660 nm in a difference range of 8%-30%. Of course, other objects, methods, packages, labels, containers, systems and apparatus are described in this patent document.

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