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Image collection control method and device, and vehicle chassis image obtaining system

專(zhuān)利號(hào)
US11176685B2
公開(kāi)日期
2021-11-16
申請(qǐng)人
Hangzhou Hikrobot Technology Co., Ltd（CN Zhejiang）
發(fā)明人
Yuanji Chen; Pinjiang He; Wencong Zhang
IPC分類(lèi)
G06T7/246; G06T7/80; G06T7/73; H04N5/225; H04N5/235
技術(shù)領(lǐng)域
capturing,image,module,scan,line,camera,vehicle,speed,object,chassis
地域： Zhejiang

摘要

Embodiments of a method and device for controlling image capturing and a system for acquiring an image of a chassis of a vehicle are provided, which relate to image capturing technology and can eliminate deformation of images occurred due to stretch or compression in image capturing. The system includes a speed measuring module, a control module, and a line scan camera. The speed measuring module measures the speed of the vehicle and transmits the measured speed of the vehicle to the control module. The control module determines line frequency for image capturing according to the speed of the vehicle, and controls the line scan camera to perform image capturing on the chassis of the vehicle with the line frequency.

說(shuō)明書(shū)

Tenth Embodiment

In this embodiment, the distance between the lens of the first image capturing module and the object is h, and the distance between the lens of the second image capturing module and the object is H.

The line linking the lens of the first image capturing module and the lens of the second image capturing module is not parallel to the direction of motion of the object, that is, the distances h and H are not equal.

The structure of the device of this embodiment is substantially the same as that of the embodiment 9, except that in this embodiment, the device for controlling image capturing may further include a first ranging module and a second ranging module. The first ranging module is configured to measure the distance between the lens of the first image capturing module and the object when the object passes through the first image capturing module. The second ranging module is configured to determine the distance between the lens of the second image capturing module and the object when the object passes through the second image capturing module.

In this embodiment, the control module 19 determines the line frequency for image capturing on the object according to the number of pixels that the image of the object travels across on the imaging plane per unit time, by:

determining the line frequency for image capturing Q on the object according to the following formula:
Q=Vp*(p2/f2)*(f1/p1)*(h/H);

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