MLchartDataset catalogue

Patent · US11587491B1 · B1 · US

System and method for a multi-primary wide gamut color system

(11) Publication number
US11587491B1
(21) Application number
17/976,347
(22) Filing date
2022-10-28
(30) Priority date
2018-10-25
(43) Publication date
2023-02-21
(45) Date of grant
2023-02-21
(51) IPC
G02B 5/20; G02F 1/1335; G09G 3/20; G09G 3/34; G09G 5/02
(52) CPC
  • G09G Arrangements or circuits for control of indicating devices using static means to present variable information: 3/2003, 2300/0452, 2320/0242, 2320/0271, 2320/0666, 2340/06, 2370/022, 2370/16, 3/001, 3/3413, 3/3426, 3/346, 5/006, 5/02, 5/06, 5/10
  • G02B Optical elements, systems or apparatus: 27/141, 5/201
  • G02F Optical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein; non-linear optics; frequency-changing of light; optical logic elements; optical analogue/digital converters: 1/133514, 1/136277, 2201/52, 2203/01
  • G03B Apparatus or arrangements for taking photographs or for projecting or viewing them; apparatus or arrangements employing analogous techniques using waves other than optical waves; accessories therefor: 21/006, 21/2006, 21/2033, 21/206
  • H04N Pictorial communication, e.g. television: 9/3105, 9/3111, 9/3147, 9/3158, 9/3164, 9/317, 9/3182
(73) Assignee
Baylor University
(72) Inventors
James M. DeFilippis; Mitchell J. Bogdanowicz; Corey P. Carbonara; Michael F. Korpi; Gary B. Mandle
(54) Title
System and method for a multi-primary wide gamut color system
(57) Abstract

The present invention includes systems and methods for a multi-primary color system for display. A multi-primary color system increases the number of primary colors available in a color system and color system equipment. Increasing the number of primary colors reduces metameric errors from viewer to viewer. One embodiment of the multi-primary color system includes Red, Green, Blue, Cyan, Yellow, and Magenta primaries. The systems of the present invention maintain compatibility with existing color systems and equipment and provide systems for backwards compatibility with older color systems.

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Claims (20)

  1. A system for displaying a primary color system, comprising: a set of image data including a set of primary color signals, wherein the set of primary color signals corresponds to a set of values in an International Commission on Illumination (CIE) Yxy color space, wherein the set of values in the CIE Yxy color space includes a luminance (Y) and two colorimetric coordinates (x,y), wherein the set of image data includes medical image data; and an image data converter, wherein the image data converter includes a digital interface, and wherein the digital interface is operable to encode and decode the set of values in the CIE Yxy color space; wherein the encode and the decode includes transportation of processed data, wherein the processed data includes a first channel related to the luminance (Y), a second channel related to a first colorimetric coordinate (x) of the two colorimetric coordinates (x,y), and a third channel related to a second colorimetric coordinate (y) of the two colorimetric coordinates (x,y); and wherein the image data converter is operable to convert the set of image data for display on at least one viewing device.
  2. The system of claim 1, wherein the image data converter is operable to convert the set of values in the CIE Yxy color space to a plurality of color gamuts.
  3. The system of claim 1, wherein the image data converter includes a look-up table.
  4. The system of claim 1, wherein the set of image data includes colors outside of an International Telecommunication Union Recommendation (ITU-R) BT.2020 color gamut.
  5. The system of claim 1, wherein the image data converter is operable to fully sample the processed data on the first channel and subsample the processed data on the second channel and the third channel.
  6. The system of claim 1, wherein the processed data on the first channel, the second channel, and the third channel are fully sampled.
  7. The system of claim 1, wherein the encode includes scaling of the two colorimetric coordinates (x,y), thereby creating a first scaled colorimetric coordinate and a second scaled colorimetric coordinate and/or the decode includes rescaling of data related to the first scaled colorimetric coordinate and data related to the second scaled colorimetric coordinate.
  8. The system of claim 1, wherein the encode includes converting the set of primary color signals to XYZ data and then converting the XYZ data to create the set of values in the CIE Yxy color space and/or the decode includes converting the processed data to XYZ data and then converting the XYZ data to a format operable to display on the at least one viewing device.
  9. The system of claim 1, further including at least one non-linear function, wherein the at least one non-linear function includes a data range reduction function with a value between about 0.25 and about 0.9 and/or an inverse data range reduction function with a value between about 1.1 and about 4.
  10. The system of claim 1, further including at least one imager, wherein one or more of the at least one imager is operable to provide the medical image data.
  11. The system of claim 1, wherein the system is compatible with Digital Imaging Communication in Medicine standards for metadata.
  12. The system of claim 1, further including at least one processor coupled to at least one memory and at least one learning algorithm for image processing and comparison.
  13. The system of claim 1, wherein the set of image data further includes hyperspectral data, ultraviolet (UV) data, and/or infrared (IR) data.
  14. The system of claim 13, wherein the image data converter is operable to create two different three-coordinate format elements, wherein the first three-coordinate format element is Yxy and the second three-coordinate format element includes a first coordinate related to the UV data, a second coordinate related to the IR data, and a third coordinate proportional to an intensity of the UV data and the IR data.
  15. The system of claim 1, further including at least one chip chart or at least one tele-med-chart with a plurality of colors and/or at least one reference to calibrate the system.
  16. A system for displaying a primary color system, comprising: a set of image data including a set of primary color signals, wherein the set of primary color signals corresponds to a set of values in an International Commission on Illumination (CIE) Yxy color space, wherein the set of values in the CIE Yxy color space includes a luminance (Y) and two colorimetric coordinates (x,y), wherein the set of image data includes medical image data; at least one imager, wherein one or more of the at least one imager is operable to provide the medical image data; and an image data converter, wherein the image data converter includes a digital interface, and wherein the digital interface is operable to encode and decode the set of values in the CIE Yxy color space; wherein the encode and the decode includes transportation of processed data, wherein the processed data includes a first channel related to the luminance (Y), a second channel related to a first colorimetric coordinate (x) of the two colorimetric coordinates (x,y), and a third channel related to a second colorimetric coordinate (y) of the two colorimetric coordinates (x,y); wherein the one or more of the at least one imager is incorporated into at least one medical device; and wherein the image data converter is operable to convert the set of image data for display on at least one viewing device.
  17. A system for displaying a primary color system, comprising: a set of image data including a set of primary color signals, wherein the set of primary color signals corresponds to a set of values in an International Commission on Illumination (CIE) Yxy color space, wherein the set of values in the CIE Yxy color space includes a luminance (Y) and two colorimetric coordinates (x,y), wherein the set of image data includes medical image data; at least one imager, wherein one or more of the at least one imager is operable to provide the medical image data; an image data converter, wherein the image data converter includes a digital interface, and wherein the digital interface is operable to encode and decode the set of values in the CIE Yxy color space; and at least one viewing device; wherein the image data converter and the at least one viewing device are in communication; wherein the encode and the decode includes transportation of processed data, wherein the processed data includes a first channel related to the luminance (Y), a second channel related to a first colorimetric coordinate (x) of the two colorimetric coordinates (x,y), and a third channel related to a second colorimetric coordinate (y) of the two colorimetric coordinates (x,y); and wherein the image data converter is operable to convert the set of image data for display on the at least one viewing device.
  18. The system of claim 17, wherein the at least one viewing device includes at least four primaries.
  19. The system of claim 17, wherein the at least one viewing device is operable to display colors outside of an International Telecommunication Union Recommendation (ITU-R) BT.2020 color gamut.
  20. The system of claim 17, wherein the at least one viewing device includes a headset configured for virtual reality, augmented reality, and/or mixed reality environments.

Description

The present invention relates to color systems, and more specifically to a wide gamut color system with an increased number of primary colors.

It is generally known in the prior art to provide for an increased color gamut system within a display.

Prior art patent documents include the following:

U.S. Pat. No. 10,222,263 for RGB value calculation device by inventor Yasuyuki Shigezane, filed Feb. 6, 2017 and issued Mar. 5, 2019, is directed to a microcomputer that equally divides the circumference of an RGB circle into 6×n (n is an integer of 1 or more) parts, and calculates an RGB value of each divided color. (255, 0, 0) is stored as a reference RGB value of a reference color in a ROM in the microcomputer. The microcomputer converts the reference RGB value depending on an angular difference of the RGB circle between a designated color whose RGB value is to be found and the reference color, and assumes the converted RGB value as an RGB value of the designated color.

U.S. Pat. No. 9,373,305 for Semiconductor device, image processing system and program by inventor Hiorfumi Kawaguchi, filed May 29, 2015 and issued Jun.

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Record as JSON 
{
  "publication_number": "US11587491B1",
  "country": "US",
  "kind": "B1",
  "title": "System and method for a multi-primary wide gamut color system",
  "abstract": "The present invention includes systems and methods for a multi-primary color system for display. A multi-primary color system increases the number of primary colors available in a color system and color system equipment. Increasing the number of primary colors reduces metameric errors from viewer to viewer. One embodiment of the multi-primary color system includes Red, Green, Blue, Cyan, Yellow, and Magenta primaries. The systems of the present invention maintain compatibility with existing color systems and equipment and provide systems for backwards compatibility with older color systems.",
  "claims": [
    "1. A system for displaying a primary color system, comprising: a set of image data including a set of primary color signals, wherein the set of primary color signals corresponds to a set of values in an International Commission on Illumination (CIE) Yxy color space, wherein the set of values in the CIE Yxy color space includes a luminance (Y) and two colorimetric coordinates (x,y), wherein the set of image data includes medical image data; and an image data converter, wherein the image data converter includes a digital interface, and wherein the digital interface is operable to encode and decode the set of values in the CIE Yxy color space; wherein the encode and the decode includes transportation of processed data, wherein the processed data includes a first channel related to the luminance (Y), a second channel related to a first colorimetric coordinate (x) of the two colorimetric coordinates (x,y), and a third channel related to a second colorimetric coordinate (y) of the two colorimetric coordinates (x,y); and wherein the image data converter is operable to convert the set of image data for display on at least one viewing device.",
    "2. The system of claim 1, wherein the image data converter is operable to convert the set of values in the CIE Yxy color space to a plurality of color gamuts.",
    "3. The system of claim 1, wherein the image data converter includes a look-up table.",
    "4. The system of claim 1, wherein the set of image data includes colors outside of an International Telecommunication Union Recommendation (ITU-R) BT.2020 color gamut.",
    "5. The system of claim 1, wherein the image data converter is operable to fully sample the processed data on the first channel and subsample the processed data on the second channel and the third channel.",
    "6. The system of claim 1, wherein the processed data on the first channel, the second channel, and the third channel are fully sampled.",
    "7. The system of claim 1, wherein the encode includes scaling of the two colorimetric coordinates (x,y), thereby creating a first scaled colorimetric coordinate and a second scaled colorimetric coordinate and/or the decode includes rescaling of data related to the first scaled colorimetric coordinate and data related to the second scaled colorimetric coordinate.",
    "8. The system of claim 1, wherein the encode includes converting the set of primary color signals to XYZ data and then converting the XYZ data to create the set of values in the CIE Yxy color space and/or the decode includes converting the processed data to XYZ data and then converting the XYZ data to a format operable to display on the at least one viewing device.",
    "9. The system of claim 1, further including at least one non-linear function, wherein the at least one non-linear function includes a data range reduction function with a value between about 0.25 and about 0.9 and/or an inverse data range reduction function with a value between about 1.1 and about 4.",
    "10. The system of claim 1, further including at least one imager, wherein one or more of the at least one imager is operable to provide the medical image data.",
    "11. The system of claim 1, wherein the system is compatible with Digital Imaging Communication in Medicine standards for metadata.",
    "12. The system of claim 1, further including at least one processor coupled to at least one memory and at least one learning algorithm for image processing and comparison.",
    "13. The system of claim 1, wherein the set of image data further includes hyperspectral data, ultraviolet (UV) data, and/or infrared (IR) data.",
    "14. The system of claim 13, wherein the image data converter is operable to create two different three-coordinate format elements, wherein the first three-coordinate format element is Yxy and the second three-coordinate format element includes a first coordinate related to the UV data, a second coordinate related to the IR data, and a third coordinate proportional to an intensity of the UV data and the IR data.",
    "15. The system of claim 1, further including at least one chip chart or at least one tele-med-chart with a plurality of colors and/or at least one reference to calibrate the system.",
    "16. A system for displaying a primary color system, comprising: a set of image data including a set of primary color signals, wherein the set of primary color signals corresponds to a set of values in an International Commission on Illumination (CIE) Yxy color space, wherein the set of values in the CIE Yxy color space includes a luminance (Y) and two colorimetric coordinates (x,y), wherein the set of image data includes medical image data; at least one imager, wherein one or more of the at least one imager is operable to provide the medical image data; and an image data converter, wherein the image data converter includes a digital interface, and wherein the digital interface is operable to encode and decode the set of values in the CIE Yxy color space; wherein the encode and the decode includes transportation of processed data, wherein the processed data includes a first channel related to the luminance (Y), a second channel related to a first colorimetric coordinate (x) of the two colorimetric coordinates (x,y), and a third channel related to a second colorimetric coordinate (y) of the two colorimetric coordinates (x,y); wherein the one or more of the at least one imager is incorporated into at least one medical device; and wherein the image data converter is operable to convert the set of image data for display on at least one viewing device.",
    "17. A system for displaying a primary color system, comprising: a set of image data including a set of primary color signals, wherein the set of primary color signals corresponds to a set of values in an International Commission on Illumination (CIE) Yxy color space, wherein the set of values in the CIE Yxy color space includes a luminance (Y) and two colorimetric coordinates (x,y), wherein the set of image data includes medical image data; at least one imager, wherein one or more of the at least one imager is operable to provide the medical image data; an image data converter, wherein the image data converter includes a digital interface, and wherein the digital interface is operable to encode and decode the set of values in the CIE Yxy color space; and at least one viewing device; wherein the image data converter and the at least one viewing device are in communication; wherein the encode and the decode includes transportation of processed data, wherein the processed data includes a first channel related to the luminance (Y), a second channel related to a first colorimetric coordinate (x) of the two colorimetric coordinates (x,y), and a third channel related to a second colorimetric coordinate (y) of the two colorimetric coordinates (x,y); and wherein the image data converter is operable to convert the set of image data for display on the at least one viewing device.",
    "18. The system of claim 17, wherein the at least one viewing device includes at least four primaries.",
    "19. The system of claim 17, wherein the at least one viewing device is operable to display colors outside of an International Telecommunication Union Recommendation (ITU-R) BT.2020 color gamut.",
    "20. The system of claim 17, wherein the at least one viewing device includes a headset configured for virtual reality, augmented reality, and/or mixed reality environments."
  ],
  "description_excerpt": "The present invention relates to color systems, and more specifically to a wide gamut color system with an increased number of primary colors.\n\nIt is generally known in the prior art to provide for an increased color gamut system within a display.\n\nPrior art patent documents include the following:\n\nU.S. Pat. No. 10,222,263 for RGB value calculation device by inventor Yasuyuki Shigezane, filed Feb. 6, 2017 and issued Mar. 5, 2019, is directed to a microcomputer that equally divides the circumference of an RGB circle into 6×n (n is an integer of 1 or more) parts, and calculates an RGB value of each divided color. (255, 0, 0) is stored as a reference RGB value of a reference color in a ROM in the microcomputer. The microcomputer converts the reference RGB value depending on an angular difference of the RGB circle between a designated color whose RGB value is to be found and the reference color, and assumes the converted RGB value as an RGB value of the designated color.\n\nU.S. Pat. No. 9,373,305 for Semiconductor device, image processing system and program by inventor Hiorfumi Kawaguchi, filed May 29, 2015 and issued Jun.",
  "cpc": [
    "G09G 3/2003",
    "G02B 27/141",
    "G02B 5/201",
    "G02F 1/133514",
    "G02F 1/136277",
    "G02F 2201/52",
    "G02F 2203/01",
    "G03B 21/006",
    "G03B 21/2006",
    "G03B 21/2033",
    "G03B 21/206",
    "G09G 2300/0452",
    "G09G 2320/0242",
    "G09G 2320/0271",
    "G09G 2320/0666",
    "G09G 2340/06",
    "G09G 2370/022",
    "G09G 2370/16",
    "G09G 3/001",
    "G09G 3/3413",
    "G09G 3/3426",
    "G09G 3/346",
    "G09G 5/006",
    "G09G 5/02",
    "G09G 5/06",
    "G09G 5/10",
    "H04N 9/3105",
    "H04N 9/3111",
    "H04N 9/3147",
    "H04N 9/3158",
    "H04N 9/3164",
    "H04N 9/317",
    "H04N 9/3182"
  ],
  "ipc": [
    "G02B 5/20",
    "G02F 1/1335",
    "G09G 3/20",
    "G09G 3/34",
    "G09G 5/02"
  ],
  "assignees": [
    "Baylor University"
  ],
  "inventors": [
    "James M. DeFilippis",
    "Mitchell J. Bogdanowicz",
    "Corey P. Carbonara",
    "Michael F. Korpi",
    "Gary B. Mandle"
  ],
  "filing_date": "2022-10-28",
  "publication_date": "2023-02-21",
  "grant_date": "2023-02-21",
  "priority_date": "2018-10-25",
  "application_number": "US-202217976347-A",
  "family_id": "85229771",
  "cited_by_count": 6,
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}

Record 843 of 8,000 in Patents full text (MLC-0201). Request the full dataset.