Distance correcting apparatus of surroundings monitoring...

Image analysis – Applications – 3-d or stereo imaging analysis

Reexamination Certificate

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C345S419000, C356S012000

Reexamination Certificate

active

06985619

ABSTRACT:
A distance correcting apparatus of a surroundings monitoring system includes a stereo imaging means for stereoscopically taking a pair of images of a frontal scenery, a parallax calculating means for calculating a parallax based on the pair of images, a distance calculating means for calculating a distance to an object based on the parallax and a parameter for correcting distance, an approximation line calculating means for calculating a plurality of approximation lines extending in the distance direction in parallel with each other based on the images, a vanishing point calculating means for calculating a vanishing point of the images from a point of intersection of the approximation lines and a parameter correcting means for correcting the parameter based on the calculated vanishing point.

REFERENCES:
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patent: 5825915 (1998-10-01), Michimoto et al.
patent: 6163337 (2000-12-01), Azuma et al.
patent: 6385334 (2002-05-01), Saneyoshi et al.
patent: 06341837 (1994-12-01), None
patent: 10307352 (1998-11-01), None
Saneyoshi et al., 3-D Image Recognition System for Drive Assist, IEEE 1993, pp. 60-65.
Saneyoshi, 3-D Image Recognition System by Means of Stereoscopy Combined with Ordinary Image Processing, IEEE 1994, pp. 13-18.
Weiss et al., An Error Analysis for Surface Orientation from Vanishing Points, IEEE 1990, pp. 1179-1185.
Bellutta et al., “3D Visual Information from Vanishing Points,” IEEE 1989, pp. 41-49.

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