Apparatus generating 3-dimensional image from 2-dimensional image and method thereof
First Claim
1. An apparatus generating a 3-dimensional image from a 2-dimensional image, comprising:
- a generator generating a shading image for a 2-dimensional input image by estimating a direction of illumination of the input image;
a combiner combining the input image with the shading image and outputting the combined image in 3-dimensions; and
a mapper converting a 3-dimensional image not in a range of a displayable color gamut to a 3-dimensional image within the range of the displayable color gamut.
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Abstract
A 3-dimensional image is generated from an input 2-dimensional image based upon illuminative characteristics of the input image by filtering the 2-dimensional input image with filters of different orientations, outputting base shading images corresponding to the filters, extracting positive pixel values for each base shading image, calculating a difference between the pixel values of the input image and the extracted positive pixel values, calculating a median value of the calculated difference, selecting the filter to output a base shading image of smallest median, outputting a shading image by filtering the input image with the selected filter, combining the input image with the shading image and outputting the 3-dimensional image based upon the combined image. A previously selected filter for a preceding image can be considered when selecting a filter for a current image, enabling generation of 3-dimensional moving pictures.
26 Citations
21 Claims
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1. An apparatus generating a 3-dimensional image from a 2-dimensional image, comprising:
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a generator generating a shading image for a 2-dimensional input image by estimating a direction of illumination of the input image; a combiner combining the input image with the shading image and outputting the combined image in 3-dimensions; and a mapper converting a 3-dimensional image not in a range of a displayable color gamut to a 3-dimensional image within the range of the displayable color gamut. - View Dependent Claims (2)
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3. An apparatus generating a 3-dimensional image from a 2-dimensional image, comprising:
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a generator generating a shading image for a 2-dimensional input image by estimating a direction of illumination of the input image; and a combiner combining the input image with the shading image and outputting the combined image in 3-dimensions, wherein the generator comprises; a filtering unit filtering the input image with filters of different orientations, and outputting base shading images respectively corresponding to the filters; a positive value extractor extracting positive pixel values of each base shading image; a subtractor calculating a difference between pixel values of the input image and the positive pixel values extracted for each base shading image; a median calculator calculating a median value of the difference that is calculated with respect to each base shading image; and a filter selector selecting the filter to output the base shading image of a smallest one of the median values, wherein the filtering unit outputs the shading image by filtering the input image with the filter selected by the filter selecting unit. - View Dependent Claims (4, 5, 6)
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7. An apparatus generating a 3-dimensional image from a 2-dimensional image, comprising:
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a generator generating a shading image for a 2-dimensional input image by estimating a direction of illumination of the input image; a combiner combining the input image with the shading image and outputting the combined image in 3-dimensions; and an image quality improver improving an image quality of the shading image, wherein the image quality improver comprises; a noise eliminator eliminating a noise signal from the shading image; a blurring unit diffusing both the noise-free shading image and a not noise-free shading image from the noise eliminator; and a gain adjustor adjusting a shading correlation value of the diffused shading image. - View Dependent Claims (8, 9)
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10. A method of generating a 3-dimensional image from a 2-dimensional image, comprising:
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generating a shading image with respect to an input 2-dimensional image by estimating a direction of illumination of the input image; combining the input image with the shading image and outputting a 3-dimensional image; and converting a 3-dimensional image not in a range of a displayable color gamut to a 3-dimensional image within the range of the displayable color gamut. - View Dependent Claims (11)
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12. A method of generating a 3-dimensional image from a 2-dimensional image, comprising:
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generating a shading image with respect to an input 2-dimensional image by estimating a direction of illumination of the input image; and combining the input image with the shading image and outputting a 3-dimensional image, wherein generation of the shading image further comprises; filtering the input image with filters of different orientations, and outputting base shading images respectively corresponding to the filters; extracting positive pixel values for each base shading image; calculating a difference between pixel values of the input image and the positive pixel values extracted with respect to each base shading image; calculating a median value of the difference calculated with respect to each base shading image; selecting one of the filters to output the base shading image of a smallest one of the median values; and outputting the shading image by filtering the input image with the selected filter. - View Dependent Claims (13, 14)
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15. A method of generating a 3-dimensional image from a 2-dimensional image, comprising:
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generating a shading image with respect to an input 2-dimensional image by estimating a direction of illumination of the input image; combining the input image with the shading image and outputting a 3-dimensional image; and improving quality of the shading image prior to combining the input image with the shading image, wherein improving of the image quality comprises; eliminating a noise signal from the shading image; diffusing both the noise-free shading image and a not noise-free shading image from the noise elimination; and adjusting a shading correlation value of the diffused shading image. - View Dependent Claims (16, 17)
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18. A system converting input 2-dimensional images to respective 3-dimensional images, comprising a programmed processor generating shading images based upon illuminative characteristics of the input images and by estimating a direction of illumination of the input images, combining the shading images with the input images, converting each combined image to a 3-dimensional image, and automatically adjusting noise, blur and/or gain of the 3-dimensional image.
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19. A system converting input 2-dimensional images to respective 3-dimensional images, comprising a programmed processor generating shading images based upon illuminative characteristics of the input images and by estimating a direction of illumination of the input images, combining the shading images with the input images, converting each combined image to a 3-dimensional image, and automatically converting the 3-dimensional image to be within a range of a displayable color gamut.
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20. A system converting input 2-dimensional images to respective 3-dimensional images, comprising a programmed processor generating shading images based upon illuminative characteristics of the input images and by estimating a direction of illumination of the input images, combining the shading images with the input images, converting each combined image to a 3-dimensional image, and automatically updating the shading images based upon a difference in illumination characteristic of an input image and previous input images.
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21. A system converting input 2-dimensional images to 3-dimensional images, comprising:
a programmed processor estimating illumination directions of input 2-dimensional images in any color format, automatically generating illuminatingly adjusted and gain adjusted colored 3-dimensional images based upon the estimated illumination directions of the input images, and converting ones of the generated 3-dimensional images not in a range of a displayable color gamut to a 3-dimensional images within the range of the displayable color gamut.
Specification