A multi-resolution large field of view high-precision photogrammetry device

Abstract

The invention discloses a multiresolution large visual field angle high precision photogrammetry apparatus, which comprises: a dimensional visual sense system that at least comprises two large visual field cameras, wherein, an intersection of visual fields covers a detected area, and the two large visual field cameras are used for measuring low precision three dimensional positions of targets of the detected object in the detected area; multiple small visual field cameras, wherein, union of the visual fields covers the detected area, small visual field cameras are used for imaging the detected object; a data processing part, which connects to a three-dimensional visual sense system and multiple small visual field cameras, is used for determining which visual field of the small visual field cameras the detected object is located in, according to the low precision three dimensional positions of the detected object measured by the dimensional visual sense system, further determining a high precision three dimensional position of the detected object according to image positions of the detected object in these small visual field cameras.

Description

technical field [0001] The invention belongs to the field of stereo vision photogrammetry, and relates to a multi-resolution, large-field angle, high-precision photogrammetry device and measurement method, in particular to a multi-resolution, large-field angle, high-precision photogrammetry device based on different spatial resolutions and arranging combined cameras and measurement methods. Background technique [0002] Object space three-dimensional coordinate measurement can be applied in many fields. The three-dimensional coordinate measurement of objects can be realized by means of three-coordinate instrument, laser measurement and stereo vision measurement. Among them, the measurement accuracy of three-coordinate instrument and laser measurement is higher than that of traditional photogrammetry. Compared with photogrammetry, CMM and laser measurement generally cannot measure multiple points at the same time, and the efficiency of sequential measurement is very low. Mo...

AI Technical Summary

Problems solved by technology

In the process of monitoring a large measurement field, although the measurement target indicating the measurement point is only a small part of the image, the traditional measurement system still needs to sample all the image projections, which will generate a large amount of redundant data, causing the computer to Deal with problems such as large amount of data and low work efficiency

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