HDR enhancement with temporal multiplex
First Claim
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1. A system comprising:
- a sensor for measuring luminance values corresponding to light focused onto the sensor at a plurality of pixel locations of a captured image, the luminance values having a dynamic range;
a memory including a set of instructions; and
a processor, wherein when executed by the processor, the instructions cause the system to;
generate a multi-segment tone mapping curve;
map the tone mapping curve to values in a look up table at equally spaced locations;
apply a multi-tap sync filter to the values within the look up table;
generate, based on the filtered values in the look up table, a set of tone mapping values corresponding to the multi-segment tone mapping curve for equally spaced input values for storage into the look up table; and
process the luminance values using the look up table to apply the tone mapping curve to the luminance values of the pixels.
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Abstract
Systems, apparatuses and methods may a performance-enhanced computing system comprising a sensor for measuring luminance values corresponding to light focused onto the sensor at a plurality of pixel locations, a memory including a set of instructions, and a processor. The processor executes a set of instructions causing the system to generate a multi-segment tone mapping curve, generate a set of tone mapping values corresponding to the multi-segment tone mapping curve for equally spaced input values between zero and one for storage into a look up table, and process the luminance values using the look up table to apply the tone mapping curve to the luminance values of the pixels.
48 Citations
14 Claims
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1. A system comprising:
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a sensor for measuring luminance values corresponding to light focused onto the sensor at a plurality of pixel locations of a captured image, the luminance values having a dynamic range; a memory including a set of instructions; and a processor, wherein when executed by the processor, the instructions cause the system to; generate a multi-segment tone mapping curve; map the tone mapping curve to values in a look up table at equally spaced locations; apply a multi-tap sync filter to the values within the look up table; generate, based on the filtered values in the look up table, a set of tone mapping values corresponding to the multi-segment tone mapping curve for equally spaced input values for storage into the look up table; and process the luminance values using the look up table to apply the tone mapping curve to the luminance values of the pixels. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. At least one non-transitory computer readable storage medium comprising a set of instructions, which when executed by a computing system, cause the computing system to:
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generate a multi-segment tone mapping curve; map the tone mapping curve to values in a look up table at equally spaced locations; apply a multi-tap sync filter to the values within the look up table; generate, based on the filtered values in the look up table, a set of tone mapping values corresponding to the multi-segment tone mapping curve for equally spaced input values for storage into the look up table; and process luminance values of an image using the look up table to apply the tone mapping curve to the luminance values. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification