METHODS FOR IMPROVED MODULATION OF VIDEO SIGNALS
First Claim
Patent Images
1. A method for modulating a video signal comprising:
- selecting frames of a plurality of frames for modulation;
designating a first magnitude alternation pattern for each of one or more transition areas between subfields of a field of the selected frames;
designating a second magnitude alternation pattern for each of the subfields of the field of the selected frames, wherein the first magnitude alternation pattern is not the same pattern as the second magnitude alternation pattern; and
altering intensity of a plurality of pixels of a plurality of scan lines of the field of the selected frames as designated by either the first magnitude alternation pattern or the second magnitude alternation pattern.
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Abstract
A method for modulating a video signal. Frames of a plurality of frames are selected for modulation. A first magnitude alternation pattern is designated for each of a first area of a field of the selected frames. A second magnitude alternation pattern is designated for each of a second area of the field of the selected frames. The intensity of a plurality of pixels of a plurality of scan lines of the field of the selected frames is altered as designated by either the first magnitude alternation pattern or the second magnitude alternation pattern.
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Citations
21 Claims
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1. A method for modulating a video signal comprising:
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selecting frames of a plurality of frames for modulation;
designating a first magnitude alternation pattern for each of one or more transition areas between subfields of a field of the selected frames;
designating a second magnitude alternation pattern for each of the subfields of the field of the selected frames, wherein the first magnitude alternation pattern is not the same pattern as the second magnitude alternation pattern; and
altering intensity of a plurality of pixels of a plurality of scan lines of the field of the selected frames as designated by either the first magnitude alternation pattern or the second magnitude alternation pattern. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An encoding system comprising:
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a source; and
an encoder configured to;
obtain a video signal from a source, the video signal comprising a plurality of frames, each of the plurality of frames each comprising a plurality of scan lines, each of the plurality of scan lines comprising a plurality of pixels, each of the plurality of pixels comprising an intensity, select frames of the plurality of frames for modulation, designate a first magnitude alternation pattern for each of one or more transition areas between subfields of a field of the selected frames, designate a second magnitude alternation pattern for each of the subfields of the field of the selected frames, wherein the first magnitude alternation pattern is not the same pattern as the second magnitude alternation pattern, and alter the intensity of the plurality of pixels of the plurality of scan lines of the field of the selected frames as designated by either the first magnitude alternation pattern or the second magnitude alternation pattern.
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10. A method for modulating a video signal comprising:
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selecting frames of a plurality of frames for modulation;
determining locations of edges in a plurality of scan lines of a field for each selected frame;
designating a first magnitude adjustment for the locations of edges;
designating a second magnitude adjustment for a remainder portion of the field for each selected frame, wherein the first magnitude adjustment is not the same value as the second magnitude adjustment; and
altering the intensity of the plurality of pixels of the plurality of scan lines of the field of the selected frames as designated by either the first magnitude adjustment or the second magnitude adjustment. - View Dependent Claims (11, 12, 13, 14, 15)
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16. An encoding system comprising:
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a source; and
an encoder configured to;
obtain a video signal from a source, the video signal comprising a plurality of frames, each of the plurality of frames each comprising a plurality of scan lines, each of the plurality of scan lines comprising a plurality of pixels, each of the plurality of pixels comprising an intensity, select frames of the plurality of frames for modulation;
determining locations of edges in the plurality of scan lines of a field for each selected frame, designate a first magnitude adjustment for the locations of edges;
designate a second magnitude adjustment for a remainder portion of the field for each selected frame, wherein the first magnitude adjustment is not the same value as the second magnitude adjustment, and alter the intensity of the plurality of pixels of the plurality of scan lines of the field of the selected frames as designated by either the first magnitude adjustment or the second magnitude adjustment.
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17. A method for modulating a video signal comprising:
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selecting a series of intensity multipliers;
selecting frames of a plurality of frames for modulation;
associating each intensity multiplier of the series of intensity multipliers with one or more frames from the selected frames; and
for each intensity multiplier, altering the intensity of the plurality of pixels of the plurality of scan lines of a field of the selected frames at a magnitude adjusted by the intensity multiplier. - View Dependent Claims (18, 19, 20)
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21. An encoding system comprising:
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a source; and
an encoder configured to;
obtain a video signal from a source, the video signal comprising a plurality of frames, each of the plurality of frames each comprising a plurality of scan lines, each of the plurality of scan lines comprising a plurality of pixels, each of the plurality of pixels comprising an intensity, select a series of intensity multipliers, select frames of the plurality of frames for modulation;
associate each intensity multiplier of the series of intensity multipliers with one or more frames from the selected frames, and for each intensity multiplier, altering the intensity of the plurality of pixels of the plurality of scan lines of a field of the selected frames at a magnitude adjusted by the intensity multiplier.
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Specification