US6232954B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for high-accuracy colorimetric characterization of display devices and method therefor
Assignee: Eastman Kodak Co
•
Filing: 1997-05-08
•
Granted: 2001-05-15
•
Expires: 2017-05-08
Abstract
Abstract Arrangements and methods characterize the calorimetric response of a display device. These arrangements and methods use an analytic model selected based on the type of the display device to characterize the calorimetric response of the display device. A lookup table compensates for individual characteristics of the particular display device by receiving a set of indices and providing a set of adjusted values as inputs to the analytic model.
Inventors
- 👤 William A. Rozzi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:12
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/46; H04N1/56; H04N1/60; H04N1/603; H04N1/6033
Claims Analysis
Total Claims: 45
Claim 1
Independent Claim
151 words
A system for constructing a display device model that characterizes the calorimetric response of a display device, the system comprising: a color measuring instrument configured and arranged to obtain color values from a set of color patches; and a computer arrangement configured and arranged to construct the display device model as a function of the color values, the display device model having an analytic mixing model constructed as a function of a type of the display device, the analytic mixing model including one or more mathematical equations that define mixing of multiple colors, and a multi-dimensional lookup table comprising a set of entries, the lookup table being constructed and arranged to compensate for certain colorimetric characteristics of the display device resulting from interaction of different color channels by receiving a set of indices, providing a set of adjusted values, and applying the adjusted values as inputs to the analytic mixing model.
Claim 2
Independent Claim
151 words
A system for constructing a display device model that characterizes the calorimetric response of a display device, the system comprising: a color measuring instrument configured and arranged to obtain color values from a set of color patches; and a computer arrangement configured and arranged to construct the display device model as a function of the color values, the display device model having an analytic mixing model constructed as a function of a type of the display device, the analytic mixing model including one or more mathematical equations that define mixing of multiple colors, and a multi-dimensional lookup table comprising a set of entries, the lookup table being constructed and arranged to compensate for certain colorimetric characteristics of the display device resulting from interaction of different color channels by receiving a set of indices, providing a set of adjusted values, and applying the adjusted values as inputs to the analytic mixing model.
Claim 3
Dependent Claim
49 words
A system according to claim 1 , wherein the computer arrangement is further configured and arranged to generate the set of entries of the lookup table using the analytic model to reduce a predictive error between measured color values and corresponding color values predicted by the display device model.
Claim 4
Dependent Claim
20 words
A system according to claim 1 , wherein the computer arrangement is further configured and arranged to generate a linearization.
Claim 5
Dependent Claim
41 words
A system according to claim 1 , wherein the computer arrangement is further configured and arranged to store at least one of the following in an image file: parameters for the display device model, the lookup table, and the color values.
Claim 6
Dependent Claim
31 words
A system according to claim 1 , wherein the analytic model characterizes at least one of the following: a halftone printing device, a dye diffusion device, and a cathode ray tube.
Claim 7
Dependent Claim
42 words
A system according to claim 1 , wherein the computer arrangement is further configured and arranged to store the color values for subsequent derivation of at least one of the following: the lookup table, and parameters for use in the analytic model.
Claim 8
Dependent Claim
31 words
A system according to claim 1 , wherein the display device model further comprises a set of transformations for transforming a set of digital colorant values into the set of indices.
Claim 9
Dependent Claim
18 words
A system according to claim 7 , wherein the set of transformations comprises a set of gain-offset-gamma functions.
Claim 10
Independent Claim
130 words
A method for constructing a display device model that characterizes the colorimetric response of a display device, the method comprising: obtaining color values from a set of color patches; constructing an analytic mixing model as a function of the color values and a type of the display device, the analytic mixing model including one or more mathematical equations that define mixing of multiple colors; and constructing a multi-dimensional lookup table comprising a set of entries as a function of the color values, the lookup table being constructed and arranged to compensate for certain colorimetric characteristics of the display device resulting from interaction of different color channels by receiving a set of indices, providing a set of adjusted values, and applying the adjusted values as inputs to the analytic mixing model.
Claim 11
Independent Claim
130 words
A method for constructing a display device model that characterizes the colorimetric response of a display device, the method comprising: obtaining color values from a set of color patches; constructing an analytic mixing model as a function of the color values and a type of the display device, the analytic mixing model including one or more mathematical equations that define mixing of multiple colors; and constructing a multi-dimensional lookup table comprising a set of entries as a function of the color values, the lookup table being constructed and arranged to compensate for certain colorimetric characteristics of the display device resulting from interaction of different color channels by receiving a set of indices, providing a set of adjusted values, and applying the adjusted values as inputs to the analytic mixing model.
Claim 12
Dependent Claim
47 words
A method according to claim 9 , further comprising generating the set of entries of the lookup table using the analytic model to reduce a predictive error between a measured set of color values and a corresponding set of color values predicted by the display device model.
Claim 13
Dependent Claim
19 words
A method according to claim 9 , further comprising performing at least one mathematical operation on the adjusted values.
Claim 14
Dependent Claim
30 words
A method according to claim 9 , further comprising storing at least one of the following in an image file: parameters for the display device model, and the color values.
Claim 15
Dependent Claim
31 words
A method according to claim 9 , wherein the analytic model characterizes at least one of the following: a halftone printing device, a dye diffusion device, and a cathode ray tube.
Claim 16
Dependent Claim
20 words
A method according to claim 9 , further comprising storing the color values for subsequent derivation of the lookup table.
Claim 17
Dependent Claim
27 words
A method according to claim 9 , further comprising generating a set of transformations for transforming a set of digital colorant values into the set of indices.
Claim 18
Dependent Claim
18 words
A method according to claim 15 , wherein the set of transformations comprises a set of gain-offset-gamma transformations.
Claim 19
Independent Claim
136 words
A system for constructing a display device model that characterizes the calorimetric response of a display device, the system comprising: means for obtaining color values from a set of color patches; means for constructing an analytic mixing model as a function of the color values and a type of the display device, the analytic mixing model including one or more mathematical equations that define mixing of multiple colors; and means for constructing a multi-dimensional lookup table comprising a set of entries as a function of the color values, the lookup table being constructed and arranged to compensate for certain colorimetric characteristics of the display device resulting from interaction of different color channels by receiving a set of indices, providing a set of adjusted values, and applying the adjusted values as inputs to the analytic mixing model.
Claim 20
Independent Claim
136 words
A system for constructing a display device model that characterizes the calorimetric response of a display device, the system comprising: means for obtaining color values from a set of color patches; means for constructing an analytic mixing model as a function of the color values and a type of the display device, the analytic mixing model including one or more mathematical equations that define mixing of multiple colors; and means for constructing a multi-dimensional lookup table comprising a set of entries as a function of the color values, the lookup table being constructed and arranged to compensate for certain colorimetric characteristics of the display device resulting from interaction of different color channels by receiving a set of indices, providing a set of adjusted values, and applying the adjusted values as inputs to the analytic mixing model.
Claim 21
Dependent Claim
151 words
For use in a system for constructing a display device model that characterizes the colorimetric response of a display device, a computer arrangement comprising: a color measuring instrument configured and arranged to obtain a set of color values from a set of patches and to provide the set of color values to the computer program; and a computer program programmed to construct an analytic mixing model constructed as a function of a type of the display device, the analytic mixing model including one or more mathematical equations that define mixing of multiple colors, and a multi-dimensional lookup table comprising a set of entries, the lookup table being constructed and arranged to compensate for certain colorimetric characteristics of the display device resulting from interaction of different color channels by receiving a set of indices, providing a set of adjusted values, and applying the adjusted values as inputs to the analytic mixing model.
Claim 22
Dependent Claim
151 words
For use in a system for constructing a display device model that characterizes the colorimetric response of a display device, a computer arrangement comprising: a color measuring instrument configured and arranged to obtain a set of color values from a set of patches and to provide the set of color values to the computer program; and a computer program programmed to construct an analytic mixing model constructed as a function of a type of the display device, the analytic mixing model including one or more mathematical equations that define mixing of multiple colors, and a multi-dimensional lookup table comprising a set of entries, the lookup table being constructed and arranged to compensate for certain colorimetric characteristics of the display device resulting from interaction of different color channels by receiving a set of indices, providing a set of adjusted values, and applying the adjusted values as inputs to the analytic mixing model.
Claim 23
Dependent Claim
49 words
A computer arrangement according to claim 18 , further programmed to generate the set of entries of the lookup table using the analytic model to reduce a predictive error between a measured set of color values and a corresponding set of color values predicted by the display device model.
Claim 24
Dependent Claim
21 words
A computer arrangement according to claim 18 , further programmed to perform at least one mathematical operation on the adjusted values.
Claim 25
Dependent Claim
32 words
A computer arrangement according to claim 18 , further programmed to store at least one of the following in an image file: parameters for the display device model, and the color values.
Claim 26
Dependent Claim
32 words
A computer arrangement according to claim 18 , wherein the analytic model characterizes at least one of the following: a halftone printing device, a dye diffusion device, and a cathode ray tube.
Claim 27
Dependent Claim
22 words
A computer arrangement according to claim 18 , further programmed to store the color values for subsequent derivation of the lookup table.
Claim 28
Dependent Claim
29 words
A computer arrangement according to claim 18 , further programmed to generate a set of transformations for transforming a set of digital colorant values into the set of indices.
Claim 29
Dependent Claim
19 words
A computer arrangement according to claim 24 , wherein the set of transformations comprises a set of gain-offset-gamma transformations.
Claim 30
Dependent Claim
137 words
For constructing a display device model that characterizes the calorimetric response of a display device, a data storage medium storing a computer-executable program that, when executed, obtains color values from a set of color patches; constructs an analytic mixing model as a function of the color values and of a type of the display device, the analytic mixing model including one or more mathematical equations that define mixing of multiple colors; and constructs a multi-dimensional lookup table comprising a set of entries as a function of the color values, the lookup table being constructed and arranged to compensate for certain colorimetric characteristics of the display device resulting from interaction of different color channels by receiving a set of indices, providing a set of adjusted values, and applying the adjusted values as inputs to the analytic mixing model.
Claim 31
Dependent Claim
137 words
For constructing a display device model that characterizes the calorimetric response of a display device, a data storage medium storing a computer-executable program that, when executed, obtains color values from a set of color patches; constructs an analytic mixing model as a function of the color values and of a type of the display device, the analytic mixing model including one or more mathematical equations that define mixing of multiple colors; and constructs a multi-dimensional lookup table comprising a set of entries as a function of the color values, the lookup table being constructed and arranged to compensate for certain colorimetric characteristics of the display device resulting from interaction of different color channels by receiving a set of indices, providing a set of adjusted values, and applying the adjusted values as inputs to the analytic mixing model.
Claim 32
Dependent Claim
53 words
A data storage medium according to claim 26 , wherein the computer-executable program, when executed, generates the set of entries of the lookup table using the analytic component to reduce a predictive error between a measured set of color values and a corresponding set of color values predicted by the display device model.
Claim 33
Dependent Claim
25 words
A data storage medium according to claim 26 , wherein the computer-executable program, when executed, performs at least one mathematical operation on the adjusted values.
Claim 34
Dependent Claim
35 words
A data storage medium according to claim 26 , wherein the computer-executable program, when executed, at least one of the following in an image file: parameters for the display device model, and the color values.
Claim 35
Dependent Claim
33 words
A data storage medium according to claim 26 , wherein the analytic model characterizes at least one of the following: a halftone printing device, a dye diffusion device, and a cathode ray tube.
Claim 36
Dependent Claim
28 words
A data storage medium according to claim 26 , wherein the computer-executable program, when executed, stores the set of color values for subsequent derivation of the lookup table.
Claim 37
Dependent Claim
33 words
A data storage medium according to claim 26 , wherein the computer-executable program, when executed, generates a set of transformations for transforming a set of digital colorant values into the set of indices.
Claim 38
Dependent Claim
20 words
A data storage medium according to claim 32 , wherein the set of transformations comprises a set of gain-offset-gamma transformations.
Claim 39
Dependent Claim
105 words
A color prediction process for predicting a color from a plurality of inputs, the process comprising: presenting the inputs to a multi-dimensional lookup table comprising a set of entries, the lookup table being constructed to compensate for certain colorimetric characteristics of a display device resulting from interaction of different color channels; from the lookup table, retrieving an entry as a function of the inputs; providing the retrieved entry to an analytic mixing model the analytic mixing model including one or more mathematical equations that define mixing of multiple colors; and using the analytic mixing model, predicting the color as a function of the retrieved entry.
Claim 40
Dependent Claim
105 words
A color prediction process for predicting a color from a plurality of inputs, the process comprising: presenting the inputs to a multi-dimensional lookup table comprising a set of entries, the lookup table being constructed to compensate for certain colorimetric characteristics of a display device resulting from interaction of different color channels; from the lookup table, retrieving an entry as a function of the inputs; providing the retrieved entry to an analytic mixing model the analytic mixing model including one or more mathematical equations that define mixing of multiple colors; and using the analytic mixing model, predicting the color as a function of the retrieved entry.
Claim 41
Dependent Claim
35 words
A color prediction process, according to claim 34 , further comprising: transforming the inputs for presentation to the lookup table; and retrieving the entry from the lookup table as a function of the transformed inputs.
Claim 42
Independent Claim
97 words
A method for characterizing the colorimetric response of an output device, the method comprising: obtaining color values from color output produced by the output device; applying an analytic mixing model as a function of the color values and a type of the output device to produce information characterizing the output device, the analytic mixing model including one or more mathematical equations that define mixing of multiple colors by the output device; and applying a multi-dimensional lookup table to compensate the analytic mixing model for colorimetric characteristics of the output device resulting from interaction of different color channels.
Claim 43
Independent Claim
97 words
A method for characterizing the colorimetric response of an output device, the method comprising: obtaining color values from color output produced by the output device; applying an analytic mixing model as a function of the color values and a type of the output device to produce information characterizing the output device, the analytic mixing model including one or more mathematical equations that define mixing of multiple colors by the output device; and applying a multi-dimensional lookup table to compensate the analytic mixing model for colorimetric characteristics of the output device resulting from interaction of different color channels.
Claim 44
Dependent Claim
22 words
The method of claim 36 , wherein the output device comprises one of a visual display monitor and a hardcopy printing device.
Claim 45
Dependent Claim
26 words
The method of claim 36 , wherein the colorimetric characteristics of the output device include calorimetric characteristics of media on which the color output is produced.
References Cited (Backward Citations)
US4393398A
Cited
US4500919A
Cited
WO1991002427A1
Cited
US5053866A
Cited
US5339176A
Cited
EP0539868A2
Cited
US5428720A
Cited
US5754184A
Cited
US5583666A
Cited
US5543940A
Cited
EP0684728A1
Cited
WO1996008916A1
Cited
US5612902A
Cited
US5526140A
Cited
US5781206A
Cited
US5963263A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-05-14 | 2004-11-13 | 2005-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-05-14 | 2008-11-13 | 2009-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-05-14 | 2012-11-13 | 2013-05-15 | $7700.00 | Window Closed / Lapsed |