Image analysis – Applications – 3-d or stereo imaging analysis
Patent
1996-05-22
1998-11-03
Boudreau, Leo H.
Image analysis
Applications
3-d or stereo imaging analysis
382156, 382275, G06K 900, G06K 962
Patent
active
058321063
ABSTRACT:
A method and an apparatus for acquisition of calibrated three dimensional data from camera image. The apparatus for acquisition of calibrated three dimensional data from camera image includes a cameral, alight source and an image processing computer. The camera acquires a light strip image of a target object. The light illuminates light strip to the target object and provides information about the illumination angle form base line (or reference line). The image processing computer obtains image and information about the angle .theta. of light plane from base line; computes connection strength of neural network and acquires calibrated three dimensional data in neutral network based on the obtained information. The mapping relationship between a control point in the three-dimensional space and a control point projected onto the two-dimensional image plane and illumination angle of light source to control point are derived by the neural network circuit.
REFERENCES:
"Geometric Camera Calibration Using Systems of Linear Equation" Keith D. Gremban, Charles E. Thorpe and Takeo Kanade, IEEE (1984).
"Camera Models Based on Data from Two Calibration", H.A. Martins, J.R. Birk, and R.B. Kelley, Revised Feb. 4, 1981, Computer Graphics and Image Processing 17, 173-180 (1981).
"Radiometric CCD Camera Calibration and Noise Estimation", Glenn E. Healey and Raghava Kondepudy, IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 16. No. 3, Mar. 1994.
Irwin Sobel, "On Calibrating Computer Controlled Cameras for Perceiving 3-D Scenes", 1974 by North-Holland Publishing Company, Artificial Intelligence 5, pp. 185-198.
H. A. Martins et al., "Camera Models Based on Data from Two Calibration", 1981 by Academic Press, Inc., Computer Graphics and Image Processing 17, pp. 173-180.
Roger Y. Tsai, "A Versatile Camera Calibration Technique for High-Accuracy 3D Machine Vision Metrology Using Off-the-Shelf TV Cameras and Lenses", 1987 IEEE, IEEE Journal of Robotics and Automation, vol. RA-3, No. 4, Aug. 1987, pp. 323-344.
Boudreau Leo H.
Electronics and Telecommunications Research Institute
Korea Telecommunication Authority
Mehta Bhavesh
LandOfFree
Method for camera calibration of range imaging system by use of does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for camera calibration of range imaging system by use of , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for camera calibration of range imaging system by use of will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-699158