| OCR Text |
Show easily through sweeping result, the motion of a plane As a found. function of the position of a scanning slit was A calibration scheme was developed which described. known required that six light-emitting diodes be flashed at locations within working the apart, each sensing assemblies pi/2 the position and orientation of each scanner The proper transformation of scanning box could be deduced. planes fitting By volume. scanner box with two light source radians was space became possible. A least mean squares approximation would reduce the data to three-dimensional coordinates. An arrangement of spinning disk and four two scanner light boxes, source mounted in the upper corners of a room, optimal arrangement (Fig. 1.2). seen. with a sensing assemblies, was chosen as an With this arrangement, light-emitting diodes located almost anywhere could be each in the room |
