| 摘要 |
The invention can be used in airborne survey with pilot-less aircrafts, at architectural measurements, in military science, for study of deformations of engineering constructions, medicine, etc. The method works as follows: on the main optical axis of the digital camera a fragment of control-measuring graticule (CMG) is installed, with possibility of its rotation with respect to the central cross in vertical plane. This is brought to working state. Pointing to the center of the object of shooting is performed, with shooting not less than in four positions, with rotation by 360°. Coordinates of the central cross of the fragment of CMG are determined for each position, by those layout elements of inner orientation of the digital camera are determined. The fragment of the CMG is displaced along the main optical axis, with shooting at least in two positions. Coordinates of the crossings of the CMG fragment are determined. The value of sections and focal distance of the digital camera are calculated. The method provides additional determination of focal distance of the digital camera and possibility to obtain all the elements of the inner orientation of the digital camera at once and with one method. |
