Method and system for prediction of gamma characteristics for a display
First Claim
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1. A method comprising:
- measuring gamma characteristics for a plurality of average power levels of a display to determine respective gamma controlled functions based on respective gamma curves derived from measured gamma characteristics;
determining respective basis vectors and coefficients for the gamma controlled functions of the plurality of average power levels; and
during operation of the display, in response to a different average power level, interpolating between coefficients associated with known average power levels to determine a respective coefficient and gamma controlled function for the different average power level.
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Abstract
A method and system for gamma adjustment for average power level dependency displays includes applying gamma controlled functions over a range of values at a plurality of average power levels (APLs) for a display. The gamma controlled functions include coefficients for reconstruction of the gamma controlled functions. Upon a change to an APL, interpolation is performed between the coefficients to predict a new gamma controlled function for the new APL.
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Citations
19 Claims
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1. A method comprising:
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measuring gamma characteristics for a plurality of average power levels of a display to determine respective gamma controlled functions based on respective gamma curves derived from measured gamma characteristics; determining respective basis vectors and coefficients for the gamma controlled functions of the plurality of average power levels; and during operation of the display, in response to a different average power level, interpolating between coefficients associated with known average power levels to determine a respective coefficient and gamma controlled function for the different average power level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A display system, comprising:
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a display means configured to display input content; a storage means configured to store coefficients and gamma controlled functions for a plurality of average power levels; a sensor configured to determine when a change to an average power level has occurred or a new average power level has been received; and a processor configured to be responsive to the sensor and, during operation of the display means, in response to a different average power level determined by said sensor, interpolating between coefficients associated with known average power levels to determine a respective coefficient and gamma controlled function for the different average power level. - View Dependent Claims (13, 14, 15)
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16. A display system, comprising:
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a display device configured to display input content; a memory configured to store coefficients and gamma controlled functions for a plurality of average power levels; a sensor configured to determine when a change to an average power level has occurred or a new average power level has been received; and a processor configured to be responsive to the sensor and, during operation of the display means, in response to a different average power level determined by said sensor, interpolating between coefficients associated with known average power levels to determine a respective coefficient and gamma controlled function for the different average power level. - View Dependent Claims (17, 18, 19)
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Specification