Scanner accuracy calibration method, device and computer equipment

Abstract

The present application relates to a method, device, and computer equipment for calibrating the accuracy of a scanner. During the working process of the scanner, at least two sets of calibration images collected by a camera and containing multiple dimensional information of a preset calibration reference object are acquired in real time; Based on the obtained calibration image, an optimization equation is established according to the limit constraint principle; and the camera parameters of the camera are calibrated according to the optimization equation. Multiple dimensions of information are involved in the optimization and adjustment of binocular parameters, which can avoid data overfitting caused by only a single dimension of information participating in the optimization and adjustment of binocular parameters. Moreover, based on multiple dimensional information and according to the limit constraint principle, an optimization equation is established, the constraints are more accurate, the optimization function is more convergent, and the real-time binocular parameter change can be calibrated more accurately.

Description

technical field [0001] The present application relates to the technical field of instrument calibration, and in particular, to a scanner accuracy calibration method, device, and computer equipment. Background technique [0002] At present, binocular imaging technology has been widely used in many fields such as industry, medical agriculture and so on. The long-term accuracy and stability of binocular scanning equipment has always been an important issue. For this reason, equipment manufacturers have spent a lot of energy on the design and production of camera lenses and other devices. No matter how the hardware is designed, the physical parameters of the binocular scanning device will still change over time during use. For example, the instantaneous change of temperature and angle with gravity during use will lead to changes in binocular parameters. Once the binocular parameters are changed, the accuracy of the measurement will be greatly reduced. [0003] In order to cop...

AI Technical Summary

Problems solved by technology

For example, instantaneous changes in temperature and the angle between gravity and gravity during use will lead to changes in binocular parameters

Once the binocular parameters change, the accuracy of the measurement will be greatly reduced

[0003] In order to cope with the long-term changes in binocular parameters, most manufacturers have adopted methods such as quick calibration to restore the accuracy of the scanner. This method can solve some problems, but it cannot calibrate the real-time binocular parameter changes during the operation of the binocular scanning equipment.

[0004] Aiming at the problem in the related technology that it is impossible to calibrate the real-time binocular parameter changes during the operation of the binocular scanning device, no effective solution has been proposed yet

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