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Data processing method and device, scanner calibration system and scanner calibration method

A technology of data processing device and calibration system, which can be used in measurement devices, optical devices, instruments, etc., and can solve problems such as insurmountable accuracy.

Active Publication Date: 2021-08-06
杭州思锐迪科技有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] The embodiment of the present application provides a data processing method, device, scanner calibration system and scanner calibration method to at least solve the problem in the related art that the temperature deformation of the measured object affects the accuracy of camera calibration.

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  • Data processing method and device, scanner calibration system and scanner calibration method
  • Data processing method and device, scanner calibration system and scanner calibration method
  • Data processing method and device, scanner calibration system and scanner calibration method

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Embodiment Construction

[0044] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be described and illustrated 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 application, and are not intended to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application. In addition, it can also be understood that although such development efforts may be complex and lengthy, for those of ordinary skill in the art relevant to the content disclosed in this application, the technology disclosed in this application Some design, manufacturing or production changes based on the content are just conventional technical means, and...

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Abstract

The invention provides a data processing method and device, a scanner calibration system and a scanner calibration method, and the method comprises the steps: obtaining a first position feature of a calibration object after temperature deformation in a world coordinate system and at an environment temperature, obtaining a second position feature of the calibration object after temperature deformation in a pixel coordinate system and at the environment temperature, and calculating he calibration parameters of the scanner according to the first position feature and the second position feature. The accurate position feature of the calibration object after deformation under the influence of the temperature in the pixel coordinate system can be obtained in the scanning process of the scanner, and therefore the calibration accuracy of the scanner under the influence of temperature deformation is improved.

Description

technical field [0001] The present application relates to the technical field of photogrammetry, in particular to a data processing method and device, a scanner calibration system and a scanner calibration method. Background technique [0002] In the field of photogrammetry, scanner calibration can determine the conversion relationship between the physical size and pixel size of the measured object, thereby correcting the distortion of the scanner and improving the accuracy of photogrammetry results. At present, the scanner calibration process generally obtains the pixel size of the measured object, and directly calculates the conversion relationship based on the pixel size and the known physical size. In this way, the measured object is susceptible to deformation due to temperature, so that The inaccurate pixel size obtained by the scanner will affect the calibration of the scanner and ultimately affect the accuracy of photogrammetry. [0003] For the problem that the temp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C25/00G01B11/00
CPCG01C25/00G01B11/002
Inventor 郑俊周国勇
Owner 杭州思锐迪科技有限公司
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