Automatic exposure method and device for multi-channel aerial camera

Abstract

The invention belongs to the technical field of aerial photography camera design, and particularly relates to an automatic exposure device for a multi-channel aerial photography camera, which comprises more than one acquisition device (1), a main controller (2), an external trigger interface (3) and an image interface (4), wherein the plurality of acquisition devices (1) are respectively and electrically connected with the main controller (2), the main controller (2) is electrically connected with the image interface (3), and the external trigger interface (4) is electrically connected with the main controller (2); wherein the acquisition device (1) comprises a lens (11) and a detector (12); and the lens (11) is electrically connected with the detector (12). The beneficial effects are thatthe main controller is used to configure the detector to rapidly switch between the Master mode and the Trigger mode. When the detector is in a standby state, a reasonable aeration value is obtainedby applying an automatic dimming function of the detector in a Master mode; and when an external trigger comes, quickly switching to a Trigger mode, and shooting by applying the latest cached exposureparameters. Under the condition that the design complexity is not increased, the problems of excessive exposure and insufficient exposure are effectively solved.

Description

technical field [0001] The invention belongs to the technical field of aerial camera design, and in particular relates to an automatic exposure method and device for a multi-channel aerial camera. Background technique [0002] In recent years, multi-channel aerial photography cameras have shown broad application prospects in the fields of smart agriculture, emergency remote sensing, and spectral detection with the advantages of low cost, flexibility, and quick response. A multi-channel aerial camera requires simultaneous exposure of multiple imaging channels. Due to the inconsistent response of detectors to different spectra, how to reasonably set the exposure time of multiple imaging channels to obtain high-quality images has always been a difficult point in the design of aerial cameras. [0003] There are two traditional solutions: the first is to calibrate the aerial camera. During the aerial photography mission, the light metering equipment is used to measure the illumi...

AI Technical Summary

Problems solved by technology

[0004] The first method, first of all, the manufacturing cost of the aerial camera is higher and the weight is heavier; secondly, a lot of calibration work needs to be done before the aerial camera; finally, due to the imperfect modeling data, it is still inevitable that there will be regional overexposure or underexposure Case

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