Depth-based image enhancement
First Claim
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1. A device for performing one or more of depth-based image enhancement and depth-based video enhancement, the device comprising:
- a depth estimation unit that generates three-dimensional (3D) depth information from a two-dimensional (2D) image;
an image enhancement unit that enhances the 2D image according to the 3D depth information, wherein the image enhancement unit comprises one or more of the following elements;
a depth-based edge enhancement unit that emphasizes edge details of the 2D image;
a color space converter that converts the 2D image between color spaces to obtain a luma component and a chroma component of the 2D image;
a depth-based contrast adjustment unit that enhances contrast characteristics of the luma component;
a depth-based saturation adjustment unit that enhances saturation characteristics of the chroma component; and
a color space back-converter that converts the adjusted luma and chroma components back to a color space of the original 2D image, whereinthe color space converter converts the 2D image from red/green/blue (RGB) color space to hue/saturation/intensity (HSI) color space, and whereinthe color space back-converter converts the enhanced 2D image from the HSI color space back to the RGB color space.
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Abstract
A depth-based image enhancement system is disclosed. A depth estimation unit generates three-dimensional (3D) depth information from a two-dimensional (2D) image. Subsequently, an image enhancement unit enhances the 2D image according to the 3D depth information.
12 Citations
18 Claims
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1. A device for performing one or more of depth-based image enhancement and depth-based video enhancement, the device comprising:
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a depth estimation unit that generates three-dimensional (3D) depth information from a two-dimensional (2D) image; an image enhancement unit that enhances the 2D image according to the 3D depth information, wherein the image enhancement unit comprises one or more of the following elements; a depth-based edge enhancement unit that emphasizes edge details of the 2D image;
a color space converter that converts the 2D image between color spaces to obtain a luma component and a chroma component of the 2D image;
a depth-based contrast adjustment unit that enhances contrast characteristics of the luma component;
a depth-based saturation adjustment unit that enhances saturation characteristics of the chroma component; and
a color space back-converter that converts the adjusted luma and chroma components back to a color space of the original 2D image, whereinthe color space converter converts the 2D image from red/green/blue (RGB) color space to hue/saturation/intensity (HSI) color space, and wherein the color space back-converter converts the enhanced 2D image from the HSI color space back to the RGB color space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of using a device to perform one or more of depth-based image enhancement and depth-based video enhancement, the method comprising:
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using a processor to perform the steps of; generating three-dimensional (3D) depth information from a two-dimensional (2D) image; enhancing the 2D image according to the 3D depth information, wherein the enhancing step comprises one or more of the following sub-steps; enhancing edge details of the 2D image based on the 3D depth information;
converting the 2D image between color spaces to obtain a luma component and a chroma component of the 2D image;
adjusting contrast characteristics of the luma component based on the 3D depth information;
adjusting saturation characteristics of the chroma component based on the 3D depth information; and
converting the adjusted luma and chroma components back to a color space of the original 2D image;
whereinthe 2D image converting sub-step converts the 2D image from red/green/blue (RGB) color space to hue/saturation/intensity (HSI) color space, and wherein the luma/chroma back-converting sub-step converts the enhanced 2D image from the HSI color space back to the RGB color space. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification