Two-dimensional plane calibration method and device
A two-dimensional plane, calibration method technology, applied in the field of computer vision, can solve the problems of difficult large-scale application of security systems, complex optical imaging models, difficult camera parameters, etc., to achieve the effect of simplifying computational complexity
Active Publication Date: 2018-05-29
TENCENT TECH (SHENZHEN) CO LTD
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However, due to the complex optical imaging model of the camera, it is difficult to calculate the parameters of the camera, and it is difficult to apply it in a large-scale security system
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[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0025] The two-dimensional plane calibration method provided by the embodiment of the present invention can be applied in such as figure 1 shown in the application environment. refer to figure 1 As shown, the camera 110 communicates with the terminal 120 through a network. Specifically, the camera 110 monitors the real-time pictures of the real scene, and transmits the acquired monitoring pictures to the terminal 120 through the network for display. The camera image plane equation, the two-dimensional plane equation of the monitoring area, the corresponding relationship between the points on the...
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The invention relates to a two-dimensional plane calibration method, comprising: selecting an arbitrary point on a monitoring screen; acquiring the coordinates of a point on the image plane corresponding to the point on the monitoring screen; and according to the correspondence between the previously established point on the image plane and a point on the two-dimensional plane, obtaining the coordinates of the point on the two-dimensional plane corresponding to the coordinates of the point on the image plane. In the above-mentioned two-dimensional plane calibration method, the coordinates of the point on the two-dimensional plane corresponding to any point on the monitoring screen can be obtained through the correspondence between the coordinates, and the calibration of the two-dimensionalplane is completed without calculating the internal and external parameters of the camera, thereby simplifying the computational complexity. The invention also provides a two-dimensional plane calibration device.
Description
technical field [0001] The invention relates to the field of computer vision, in particular to a two-dimensional plane calibration method and device. Background technique [0002] One of the basic tasks of computer vision is to calculate the geometric information of objects in three-dimensional space from the image information acquired by the camera, and then reconstruct and recognize the objects. The relationship between the three-dimensional geometric position of a point on the surface of a space object and its corresponding point in the image is determined by the geometric model of the camera imaging, and these geometric model parameters are camera parameters. However, due to the complex optical imaging model of the camera, it is difficult to calculate the parameters of the camera, and it is difficult to apply it in the security system on a large scale. Contents of the invention [0003] Based on this, it is necessary to provide a two-dimensional plane calibration meth...
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IPC IPC(8): G06T7/80
CPCG06T2207/30204
Inventor 张磊
Owner TENCENT TECH (SHENZHEN) CO LTD