Image collection control method and device, and vehicle chassis image obtaining system
摘要
說明書
where, v is the speed of the vehicle, p1 is the size of a single pixel of the line scan camera 14, f1 is the focal length of the line scan camera 14, and H is the distance between the line scan camera 14 and the vehicle.
The unit of the above line frequency Q is Hz.
The control module 13 can determine the line frequency for image capturing Q by combining the formula (2) and formula (3): Q=Vp*(p1/f1)*(f2/p2)*(h/H)??(4)
As an optional implementation, in order to accurately obtain the distance h between the vehicle and the image capturing module and the distance H between the line scan camera and the vehicle, ranging modules, such as ultrasonic ranging modules or laser ranging modules, may be used to obtain the distance h between the vehicle and the image capturing module and the distance H between the line scan camera and the vehicle in real-time.
The control module 13 transmits the determined line frequency to the line scan camera 14. The line scan camera 14 captures images of the chassis of the vehicle with the determined line frequency. In this way, the control module 13 controls the line scan camera 14 to perform image capturing on the chassis of the vehicle with the determined line frequency. In other words, this achieves line frequency of the line scan camera 14 that matches with the speed of the vehicle, thereby eliminating the deformation of images of the chassis captured by the line scan camera 14 that may occur due to stretch or compression.
