Evaluating Influential Parameters on Camera Calibration in Close Range Photogrammetry

Camera Calibration is an important step in the close-range photogrammetry projects. Different parameters can effect calibration of a digital camera. In this paper, some influential parameters are assessed. For this purpose, by building a ۳D test field and several experiments, the effects of ۹۰-degree camera rotation, environmental illumination, number of images and image overlap on camera calibration are assessed. As a result, the precision improved by ۹۰-degree camera rotation, increase in the number of images and sufficient image overlaps.

Keywords:

Calibration , Digital Camera , Close range photogrammetry