Patent ID: 6674892
Filing Date: 2004-01-06
Classification: G06K,G06T

Abstract:
A computer-implemented method for correcting an epipolar axis to approximate a horizontal axis, the epipolar axis associated with first and second images of a stereo image pair, where a first region of the first image corresponds to a second region of the second image, the method comprising:partitioning the first and second images into a plurality of vertically striped regions, each region of the first image corresponding to a region of the second image; vertically shifting a region of the first image in a direction calculated to vertically align a portion of the region with a substantially matching portion of the corresponding region; identifying a portion of the second region that substantially matches a portion of the first region; calculating a vertical offset between the portion of the first region and the substantially matching portion of the second region; vertically shifting the first region according to the calculated vertical offset to vertically align the substantially matching portions of the first and second regions; repeating the identifying and calculating steps for at least two portions of the first region in order to calculate at least two vertical offsets; and determining an average of the at least two vertical offsets.