APPARATUS AND METHOD FOR RECONSTRUCTING THREE-DIMENSIONAL INFORMATION
First Claim
Patent Images
1. An apparatus for reconstructing three-dimensional (3D) information, comprising:
- a stereo image acquisition unit configured to acquire stereo images having a parallax therebetween from an object;
an edge information generation unit configured to generate edge information that is feature information about each of the stereo images, using an edge operator;
a normalized edge correlation calculation unit configured to calculate a normalized edge correlation coefficient for corresponding pixels in the stereo images by using the edge information;
an edge disparity space image generation unit configured to generate a 3D edge disparity space image based on the normalized edge correlation coefficient; and
a disparity information extraction unit configured to extract disparity surface information using the edge disparity space image.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed herein is an apparatus and method for reconstructing 3D information. The present invention calculates a normalized cross correlation value using luminance information included in two or more stereo images, calculates a normalized edge correlation value using local edge information, and extracts disparity surface information from a composite disparity image generated based on two types of matching costs.
-
Citations
16 Claims
-
1. An apparatus for reconstructing three-dimensional (3D) information, comprising:
-
a stereo image acquisition unit configured to acquire stereo images having a parallax therebetween from an object; an edge information generation unit configured to generate edge information that is feature information about each of the stereo images, using an edge operator; a normalized edge correlation calculation unit configured to calculate a normalized edge correlation coefficient for corresponding pixels in the stereo images by using the edge information; an edge disparity space image generation unit configured to generate a 3D edge disparity space image based on the normalized edge correlation coefficient; and a disparity information extraction unit configured to extract disparity surface information using the edge disparity space image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A method of reconstructing three-dimensional (3D) information, comprising:
-
acquiring, by a stereo image acquisition unit, stereo images having a parallax therebetween from an object; generating, by an edge information generation unit, edge information that is feature information about each of the stereo images, using an edge operator; calculating, by a normalized edge correlation calculation unit, a normalized edge correlation coefficient for corresponding pixels in the stereo images by using the edge information; generating, by an edge disparity space image generation unit, a 3D edge disparity space image based on the normalized edge correlation coefficient; and extracting, by a disparity information extraction unit, disparity surface information from the edge disparity space image. - View Dependent Claims (10, 11, 12)
-
-
13. A method of reconstructing three-dimensional (3D) information, comprising:
-
acquiring, by a stereo image acquisition unit, stereo images having a parallax therebetween from an object; calculating, by a normalized cross correlation calculation unit, a normalized cross correlation coefficient for the corresponding pixels in the stereo images using luminance information of a center pixel and neighboring pixels around the center pixel in each of the stereo images; generating, by a luminance disparity space image generation unit, a 3D luminance disparity space image based on the normalized cross correlation coefficient calculated for the corresponding pixels in the stereo images; generating, by an edge information generation unit, edge information that is feature information about each of the stereo images, using an edge operator; calculating, by a normalized edge correlation calculation unit, a normalized edge correlation coefficient for the corresponding pixels in the stereo images by using the edge information generated for each of the stereo images; generating, by an edge disparity space image generation unit, a 3D edge disparity space image based on the normalized edge correlation coefficient calculated for the corresponding pixels in the stereo images; combining, by a disparity space image combination unit, the luminance disparity space image generated by the luminance disparity space image generation unit and the edge disparity space image generated by the edge disparity space image generation unit into a single composite 3D space image; and extracting disparity surface information from the composite 3D space image into which the edge disparity space image and the luminance disparity space image are combined. - View Dependent Claims (14, 15, 16)
-
Specification