Pattern-matching processing method and image processing apparatus
First Claim
1. A pattern-matching processing method, comprising an area generating step for generating a left area and a right area each having a given range from a left image and a right image photographed in stereo, a pixel generating step for generating an interpolation pixel between pixels contained in the left area or the right area, and a pattern-matching step for performing pattern matching using the left area and the right area.
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Abstract
The present invention relates to a pattern-matching processing method based on left and right images of an object photographed in stereo. A left area and a right area are generated, each having a fixed pattern containing plural pixels extracted from the left and right images, respectively, and in the left area, a reference image is generated by calculating an interpolation pixel value to be used between two transversely adjacent pixels based on the average of the two pixel values, and by calculating an interpolation pixel value to be used between two vertically adjacent pixels based on the average of the plural pixel values surrounding the relating position. Similarly, in the right area, interpolation pixel values are calculated and a comparison image is generated. Then pattern matching is performed between the reference image and the comparison images generated sequentially by shifting the right original image pixel by pixel.
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Citations
22 Claims
- 1. A pattern-matching processing method, comprising an area generating step for generating a left area and a right area each having a given range from a left image and a right image photographed in stereo, a pixel generating step for generating an interpolation pixel between pixels contained in the left area or the right area, and a pattern-matching step for performing pattern matching using the left area and the right area.
- 12. An image processing apparatus measuring the distance to an object that is photographed as images, by performing pattern-matching processing based on left and right images photographed by a stereo camera, and comprising a pixel generating unit for generating a left area and a right area each having a fixed range from the left image and the right image and for generating interpolation pixels between pixels contained in the left area or the right area, a pattern-matching processing unit having a pattern-matching unit performing pattern matching on the left area and the right area, and a distance measuring unit for calculating the distance from the difference in positions of the left image and the right image based on the matching position specified by performing pattern matching on the left area and the right area.
Specification