Visual sense measuring instrument and visual sense measuring method

Abstract

The application discloses a visual sense measuring instrument and a visual sense measuring method; the visual sense measuring instrument comprises a machine body, a horizontal circle, a vertical circle, a lens, an image sensor and a horizontal sensor, a distance sensor, a horizontal direction adjusting turn button and a vertical direction adjusting turn button; the central axle of the horizontal circle and the primary optic axis of the lens are respectively vertical to the central axis of the vertical circle; the central axle of the horizontal circle, the primary optic axis of the lens and thecentral axis of the vertical circle intersect in one point; the primary optic axis of the lens vertically intersects with the image plane of the image sensor; the range finding optical axis of the distance sensor and the primary optic axis of the lens parallel or overlap, and intersect with the central axle of the horizontal circle; the line array of a photosensitive unit array of the image sensor is parallel to the central axis of the vertical circle; the column array of the photosensitive unit array of the image sensor is vertical to the central axis of the vertical circle; the central axleof the horizontal sensor is parallel to the central axle of the horizontal circle. The visual sense measuring instrument and method are non-contact, high in precision, high in efficiency, and can improve the photogrammetry precision.

Description

technical field [0001] The present application relates to the technical field of visual measurement, in particular to a visual measurement instrument and a visual measurement method. Background technique [0002] For the spatial three-dimensional size and position measurement of the measured object, a laser tracker system or a digital close-range photogrammetry system are generally used. The laser tracker system obtains the spatial information of the measured object through the dial measurement angle and laser distance measurement, which has the advantages of high precision and strong reliability. The digital close-range photogrammetry system obtains more than two images of the same object in different positions and directions through the camera, and obtains the precise three-dimensional coordinates of the point to be measured after image processing and matching and other related mathematical calculations. It has non-contact, high efficiency, etc. Significant advantages. ...

AI Technical Summary

Problems solved by technology

[0005] 1. The main optical axis of the TS16 camera is not coaxial with the collimation axis of the total station, and the focal point or image plane of the camera has no definite positional relationship with the instrument center point of the total station;

[0006] 2. The main parameters of TS16 camera are: 5 million pixels, field of view is 19.4°, camera sensor and lens have low resolution and narrow field of view

Although TS16 can determine the relationship between the principal optical axis and the collimation axis and the positional relationship between the focal point or image plane of the camera and the instrument center point of the total station through the method of self-calibration by the user, the movement of the horizontal dial and the vertical dial Under the combined effect, the complexity of the system is greatly increased, and it is impossible to achieve higher precision

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