Multi-camera exposure synchronous control system and method and unmanned aerial vehicle

Abstract

The invention discloses a multi-camera exposure synchronous control system, a multi-camera exposure synchronous control method and an unmanned aerial vehicle. The system comprises a shutter signal conversion module and an image acquisition equipment control assembly comprising a processor, a driving signal module and an image sensor, if the shutter signal conversion module detects the falling edgeof the image acquisition trigger signal, the shutter signal conversion module sends the image acquisition signal corresponding to the image acquisition trigger signal to the processor; if the idle control unit of each processor detects the falling edge of the image acquisition signal, the idle control unit controls the driving signal module to stop sending the synchronization signal; the reset control unit controls the image sensor to reset; the initialization control unit controls the image sensor to be initialized; the sending control unit controls the driving signal module to send the synchronizing signal again, and controls the image sensor to expose when receiving the rising edge of the appointed synchronizing signal; and if the receiving unit detects the rising edge of the next synchronizing signal of the appointed synchronizing signal, the receiving unit receives the image data so as to control the plurality of image sensors to be simultaneously exposed.

Description

technical field [0001] The invention relates to the technical field of surveying and mapping, in particular, to a multi-camera exposure synchronization control system and its method, and an unmanned aerial vehicle. Background technique [0002] In the field of aerial surveying, when measuring the target scene, it is generally: to use the tilted photography gondola carried by the UAV to obliquely photograph the target scene to obtain oblique photography data; and then use the obtained oblique photography data to perform three-dimensional Image modeling, and then realize the measurement of the target scene, wherein, the above-mentioned inclined photography cabin is: a camera system composed of multiple image acquisition devices, the image acquisition device can be a camera or a camera, and each image acquisition device corresponds to an image A sensor for collecting image data. [0003] Theoretically, in order to ensure the accuracy of the 3D image modeling of the target scen...

AI Technical Summary

Problems solved by technology

However, since the exposure start times of the image sensors of each image acquisition device are not synchronized, there is a time difference between the image sensors of the image acquisition devices. There is a deviation between the image data captured by the acquisition device and the corresponding GPS positioning position, and this deviation has a great impact on the later 3D image modeling

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