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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)

In this embodiment, the first image capturing module captures images of the object in motion. The number of pixels that the images of the object travel through on the imaging plane of the first image capturing module per unit time is determined. The line frequency for image capturing on the object is determined according to the determined number of pixels. Thereby, the image capturing frequency of the second image capturing module, i.e., of the line scan camera, can be controlled according to the determined line frequency, so that the second image capturing module captures images of the object with the line frequency. In this way, even if the speed of the object changes, the embodiment can facilitate to avoid deformation of images that may occur due to compression or stretch during the image capturing of the object.

Sixth Embodiment

FIG. 8 is a schematic flowchart of a method for controlling image capturing provided by the sixth embodiment of the present application. Referring to FIG. 8, the method for controlling image capturing of this embodiment may include the following operations.

Step 801: capturing images of an object in motion by a first image acquisition module continuously.

In this embodiment, the step of capturing images of object in motion continuously is similar to the step 701 of the foregoing method embodiment, and is not repeated herein.

Step 802: determining relative positions of a feature point of the object in the i-th image and the (i+1)-th image.

權(quán)利要求

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