Image upsampling technique
AssigneeSharp Laboratories of America, Inc.
InventorsDean Messing, M. Ibrahim Sezan, Scott J. Daly
Life of this patent
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Abstract
A upscaling (upsampling) technique for digital images and video for presentation on a display.
Claims37
A method for modifying an image from a first resolution to a modified image having a greater second resolution:
- (a) receiving said image having said first resolution;
- (b) filtering said image with a non-linear filter to create a first channel and a second channel, wherein said first channel includes primarily texture information and said second channel includes primarily edge and flat region information;
- (c) interpolating said first channel to a greater resolution using a first filter;
- (d) interpolating said second channel to a greater resolution using a second filter;
- (e) combining said first channel and said second channel to form said modified image having said second resolution.
A method for modifying an image from a first resolution to a modified image having a greater second resolution:
- (a) receiving said image having said first resolution;
- (b) filtering said image with a splitting filter to create a first channel and a second channel, wherein said first channel includes primarily texture information and said second channel includes primarily edge and flat region information;
- (c) interpolating said first channel to a greater resolution using a first filter;
- (d) interpolating said second channel to a greater resolution using a second filter;
- (e) combining said first channel and said second channel to form said modified image having said second resolution.
A method for modifying an image from a first resolution to a modified image having a greater second resolution:
- (a) receiving said image having said first resolution;
- (b) separating said image into a first channel and a second channel;
- (c) interpolating said first channel to a greater resolution using a first filter in such a manner that primarily enhances texture information;
- (d) interpolating said second channel to a greater resolution using a second filter that primarily enhances contour information;
- (e) combining said first channel and said second channel to form said modified image having said second resolution.
A method for modifying an image from a first resolution to a modified image having a greater second resolution:
- (a) receiving said image having said first resolution;
- (b) separating said image into a first channel and a second channel;
- (c) interpolating said first channel to a greater resolution using a first filter in such a first manner that primary enhances first selected information;
- (d) interpolating said second channel to a greater resolution using a second filter in such a second manner that primarily enhances second selected information;
- (e) combining said first channel and said second channel to form said modified image having said second resolution.
A method for modifying an image from a first resolution to a modified image having a greater second resolution:
- (a) receiving said image having said first resolution;
- (b) separating said image into at least three channels;
- (c) interpolating each of said at least three channels to a greater resolution using a respective filter in such a first manner that primary enhances different selected information;
- (d) combining said interpolated at least three channels to form said modified image having said second resolution.
Dependencies are inferred from the claim text.