| 摘要 |
PROBLEM TO BE SOLVED: To estimate the precise camera parameters for a parameter undecided image, when a plurality of reference points whose precise three-dimensional coordinate values have been found out exist in a photographed time-series image. SOLUTION: An image to be used as an initial image is fetched from a time-series image database 4, and space information on a reference point group is arranged in the image. Two-dimensional coordinates in the time-series image in the reference point group are found on the basis of a measured matrix as their track data, and the relative three-dimensional coordinate matrix and the precise three-dimensional coordinate matrix of the reference point group are found. A specific value matrix is extracted from the relative three-dimensional coordinate matrix, the left-side matrix and the right-side matrix of the specific value matrix are extracted from the precise three-dimensional coordinate matrix so as to be combined, and a three-dimensional coordinate matrix is generated. A camera motion matrix is found, by using the factorization method on the basis of a matrix in which a noise has been removed from the matrix, and on the basis of the three-dimensional coordinate matrix, and the camera parameters are found. |
