A close-range photogrammetry system and measurement method capable of positioning and attitude determination

Abstract

The invention discloses a close-shot photography measurement system capable of realizing positioning and attitude determination and a close-shot photography measurement method capable of realizing positioning and attitude determination, belongs to the technical field of science of surveying and mapping, and particularly relates to a photography measurement technology. The system is subjected to real-time tracking and positioning by a prism mounted on a camera and a total station erected within a whole-visible range; a horizontal dial mounted below a holder at the bottom of the camera and a vertical dial mounted on the left side or right side of the camera are used for carrying out real-time attitude determination. By construction of a relation model of the prism, the horizontal dial, the vertical dial and the camera, positioning and attitude determination data are converted to the center of the camera, so that an image can be shot by the photography measurement, and information such as the position and attitude of the camera can be acquired. By use of a large-inclination-angle multi-base-line photography measurement algorithm and combination of line element and angle element initial values of the exterior orientation provided by a positioning and attitude determination system, large-inclination-angle and multi-base-line close-shot photography measurement can be quickly calculated; therefore, the efficiency and accuracy of image matching are improved, and the data processing precision is improved.

Description

technical field

[0001] The invention relates to a close-range photogrammetry system capable of positioning and fixing an attitude and a measurement method, belonging to the field of surveying and mapping science and technology, and in particular to photogrammetry technology. The system uses the prism installed on the camera and the total station installed in the field of vision to track and position the system in real time, and uses the horizontal dial installed under the pan / tilt at the bottom of the camera and the vertical dial on the left / right side of the camera to track and locate the system in real time. The system performs real-time attitude determination. By establishing the relationship model between the prism, the horizontal dial, the vertical dial and the camera, the positioning and attitude data are converted to the center of the camera, so that the position and attitude of the camera can be obtained while taking images with photogrammetry technology. Background ...

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