Method and device for detecting optical axis offset error value
A technology of optical axis offset and detection method, applied in the direction of optical axis determination, lens position determination, testing optical performance, etc., can solve the problems of difficult measurement, optical axis offset error, etc., to achieve the effect of improving accuracy
Active Publication Date: 2019-02-01
SHENZHEN ORBBEC CO LTD
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[0005] In order to solve the problem that the optical axis offset error of the imaging device is difficult to measure, the present invention provides a method and device for detecting the optical axis offset error value
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[0026] The present invention will be described in detail below through specific embodiments in conjunction with the accompanying drawings, so as to better understand the present invention, but the following embodiments do not limit the scope of the present invention. In addition, it should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and only the components related to the present invention are shown in the drawings rather than the number of components, Shape and size drawing, the shape, quantity and proportion of each component can be changed arbitrarily during actual implementation, and the layout of the components may also be more complicated.
[0027] figure 1 It is a detection device 100 for an optical axis offset error value according to an embodiment of the present invention. The device 100 includes a projection device 110 , an imaging device 120 , and a controller 130 . ...
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The invention provides a method for detecting an optical axis offset error value. The method comprises the following steps that S1, a projection device projects a light point onto a flat plate; S2, animaging device shoots the light point to generate a first image and stores the first image in a storer; S3, the imaging device is rotated at a preset angle, shoots the light point again to generate asecond image and stores the second image in the storer; and S4, a controller processes the first image and the second image which are stored in the storer, and calculates the optical axis offset error value. The invention further provides a device for detecting the optical axis offset error value. According to the method and device for detecting the optical axis offset error value, through a modeof active imaging detection, under the condition without disassembling the imaging device, the optical axis offset error value of the imaging device is detected, and thus the accuracy of the imagingdevice during using and reliability of collected data are improved.
Description
technical field [0001] The invention relates to the field of optical measurement and manufacture, in particular to a detection method and device for an optical axis offset error value. Background technique [0002] With the development of optical technology and traditional manufacturing processes, cameras can not only be used to take pictures and record images, but have been widely used in optical measurement, 3D reconstruction, human-computer interaction, robotics and virtual reality and other fields. In order to ensure the accuracy of imaging measurement and positioning, the structure of high-precision camera lenses is becoming more and more complex, and there are higher requirements for the accuracy of the optical path transmitted by the lens. [0003] In the process of using a high-precision camera, the optical imaging system is directly associated with the acquisition target. In theory, the optical axis of the optical imaging system is coaxial with the mechanical axis o...
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IPC IPC(8): G01M11/02
CPCG01M11/0221
Inventor 黄杰凡黄源浩肖振中陈醒身
Owner SHENZHEN ORBBEC CO LTD