| 摘要 |
The method uses a CCD camera (2) mounted on a turntable (3) and pivoted about a perpendicular axis (5), for alignment of the optical axis (7) with the scanned floor, ceiling or wall surface, before rotation through 360 deg about the turntable axis (6), in synchronism with the scanning raster of the CCD camera. The digital data provided by the camera are transformed into a required viewing perspective before storage in a data memory. The digital data are transformed using the equation R = R0 + tA(DfiB(tet0)rb, where R is the position vector of a point, R0 is the position of the camera, t is the scale factor of their imaged point, A(jDfi) is the rotation matrix of the angle jDfi about the second rotation axis, j is the image line of the output image, Dfi is the angle increment, B(tet0) is the rotation matrix of the tilt angle tet0 about the tilt axis and rb is the vector of the image con-ordinates. An Independent claim for a CCD camera mounted on a turntable is also included.
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