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

專利號
US11176685B2
公開日期
2021-11-16
申請人
Hangzhou Hikrobot Technology Co., Ltd(CN Zhejiang)
發(fā)明人
Yuanji Chen; Pinjiang He; Wencong Zhang
IPC分類
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.

說明書

In this embodiment, the line frequency Q for capturing an image of the object may be determined according to the following formula:
Q=v*(f1/p1)/H=Vp*(p2/f2)*(f1/p1)*(h/H);

where Vp is the number of pixels on the imaging plane of the first image capturing module that the image of the object passes through per unit time; p2 is the size of a single pixel of the first image capturing module, and the unit of which may be millimeter; f2 is the focal length of the first image capturing module, the unit of which may be millimeters; p1 is the size of a single pixel of the second image capturing module, the unit of which may be millimeters; f1 is the focal length of the second image capturing module, and the unit of which may be millimeters; h is the distance between the first image capturing module and the object, the unit of which can be mm; H is the distance between the second image capturing module and the object, the unit of which can be millimeter; and the character of * indicates multiplication, and the character of/indicates division.

In this embodiment, when the object passes through the first image capturing module, the distance h between the first image capturing module and the object is determined; and when the object passes through the second image capturing module, the distance H between the second image capturing module and the object is determined.

權(quán)利要求

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