Method and arrangement for the automatic control of aerial photographic cameras
US4734724A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 1986 |
| Grant date | Mar 29, 1988 |
| Priority date | — |
| Expiry date | Aug 22, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B37/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and an arrangement for the automatic control of aerial photography cameras, in which a lens portrays the terrain overflown on a projected area, at least two photodetector rows being disposed on the projected area perpendicularly to the direction of motion of the terrain image and the direction and speed of motion of the terrain image on the projected area, the drift and the v.sub.g /h.sub.g ratio being determined from the signals of the photodetector. The method eliminating errors in the determination of v.sub.g /h.sub.g and drift, which are caused by tilts (.omega.) about the aircraft longitudinal and lateral (.psi.) axes. For this purpose the tilt (.omega., .psi.) of the aircraft is determined simultaneously with reading the photodetector rows and taken into consideration in the evaluation of the signals of the photodetectors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.