METHOD AND SYSTEM FOR ENHANCED MODULATION OF VIDEO SIGNALS
First Claim
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1. A method comprising:
- accessing a matrix including a plurality of value adjustments, a particular value adjustment of the plurality of value adjustments being based on a pixel value of a particular pixel of a plurality of pixels of a frame of a video signal; and
applying the plurality of value adjustments of the matrix to the frame to alter the pixel value of at least a portion of the plurality of pixels of the frame of the video signal,wherein application of the plurality of value adjustments to the frame creates a modulated video signal.
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Abstract
A method, apparatus and system for signal modulation. A plurality of pixels are selected in a pattern such that a first pixel group of the plurality of pixels is unpaired with a second pixel group of the plurality of pixels throughout the pattern in a portion of a video signal. The intensity of the plurality of the pixels is altered at a constant magnitude in the portion of the video signal pursuant to the pattern in a substantially invisible way.
79 Citations
17 Claims
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1. A method comprising:
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accessing a matrix including a plurality of value adjustments, a particular value adjustment of the plurality of value adjustments being based on a pixel value of a particular pixel of a plurality of pixels of a frame of a video signal; and applying the plurality of value adjustments of the matrix to the frame to alter the pixel value of at least a portion of the plurality of pixels of the frame of the video signal, wherein application of the plurality of value adjustments to the frame creates a modulated video signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method comprising:
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designating a first grouping of pixels of a frame of a video signal to receive an intensity increase; designating a second grouping of pixels of the frame to receive an intensity decrease, the second grouping of pixels including a plurality of different pixels than the first grouping of pixels; accessing a matrix including a first grouping of value adjustments that correspond to the first grouping of pixels and a second grouping of value adjustments that correspond to the second grouping of pixels; and increasing the intensity of the first grouping of pixels of the frame based on the first grouping of value adjustments and decreasing the intensity of the second grouping of pixels of the frame based on the second grouping of value adjustments, wherein increasing the intensity and decreasing the intensity creates a modulated video signal. - View Dependent Claims (9, 10, 11)
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12. A computer-readable storage medium comprising instructions, which when executed by a processor, cause the processor to:
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access a matrix including a plurality of value adjustments, a particular value adjustment of the plurality of value adjustments being based on a pixel value of a particular pixel of a plurality of pixels of a frame of a video signal; and apply the plurality of value adjustments of the matrix to the frame to alter the pixel value of at least a portion of the plurality of pixels of the frame of the video signal, wherein application of the plurality of value adjustments to the frame creates a modulated video signal. - View Dependent Claims (13)
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14. A computer-readable storage medium comprising instructions, which when executed by a processor, cause the processor to:
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designate a first grouping of pixels of a frame of a video signal to receive an intensity increase; designate a second grouping of pixels of the frame to receive an intensity decrease, the second grouping of pixels including a plurality of different pixels than the first grouping of pixels; access a matrix including a first grouping of value adjustments that correspond to the first grouping of pixels and a second grouping of value adjustments that correspond to the second grouping of pixels; and increase the intensity of the first grouping of pixels of the frame based on the first grouping of value adjustments and decrease the intensity of the second grouping of pixels of the frame based on the second grouping of value adjustments, wherein increasing the intensity and decreasing the intensity creates a modulated video signal.
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15. A system comprising:
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an encoder to access a matrix including a plurality of value adjustments, a particular value adjustment of the plurality of value adjustments being based on a pixel value of a particular pixel of a plurality of pixels of a frame of a video signal, and apply the plurality of value adjustments of the matrix to the frame to alter the pixel value of at least a portion of the plurality of pixels of the frame of the video signal, wherein application of the plurality of value adjustments to the frame creates a modulated video signal. - View Dependent Claims (16, 17)
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Specification