Calibration of a CCD surface sensor and of a photogrammetric reproduction system is presented. A digital system including a camera with an 80 mm lens, a 120 mm lens for reproduction in the sensor surface, and a CCD camera without lens is calibrated. Analog-to-digital conversion, coordinate measurement, and data transfer are performed. Images are subjected to simultaneous calibration to determine the 3-D target point coordinates of the test field and the internal and external orientation parameters after bundle adjustment. Without previous image processing, accuracy is 10 to 20 micron. The CCD surface sensors can be applied in photogrammetric systems and as sensors for large-scale analog-to-digital conversion of measuring images. Digital image production and processing can be applied in photogrammetric point determination.
Deutsche Geodaetische Kommission Camera Calibration in Photogrammetric Practice
- Pub Date:
- Image Processing;
- Image Velocity Sensors;
- Analog To Digital Converters;
- Digital Systems;
- Instrumentation and Photography