Study of the spatial object’s exterior attitude measurement based on multi-linear CCD

To overcome the conflict between the speed and the accuracy with area image sensors are used for attitude measurement, an exterior attitude measurement with nine linear CCD cameras combination for spatial object is presented. The attitude angle of the measured object is determined by the spatial solution while the coordinate reconstruction is separately carried on by three subsystems for 3D coordinate reconstruction of point target (S3DCRPT) with three point cooperation targets (PCTs) on the measured object. Two forms of a new optical system construction are designed to solve the interference problem with one-one relationship between the PCTs and the S3DCRPT optical subsystems, improve measurement accuracy and save space. The hardware platform based on multi-CPU is constructed to ensure synchronous data collection, and increase processing efficiency. The partial and global calibration were realized for the multi-cameras´ attitude measurement system. The test results show that the exterior attitude measurement method based on multi-linear CCD is feasible.