Rotary 3D information rapid acquisition equipment

Abstract

The invention provides rotary 3D information rapid acquisition equipment, which comprises an image acquisition device, a rotating device and a background plate, wherein the rotating device is used fordriving the image acquisition device to rotate and driving the background plate to rotate; the background plate and the image acquisition device are kept oppositely arranged in the rotating process,so that the background plate becomes a background pattern of an image acquired by means of the image acquisition device during acquisition; and the projection length M of the background plate in the horizontal direction and the projection length N of the background plate in the vertical direction meet the following relationship: 3.5*L*tan beta>M>0.9*L*tan beta, 3.5*L*tan beta>N>0.9*L*tan beta, wherein beta is the half field angle of the image acquisition device, and L is the distance from the image acquisition device to the background plate. The rotary 3D information rapid acquisition equipment proposes the additional arrangement of the background plate which rotates along with a camera for the first time, so as to accelerate the synthesis speed and improve the synthesis precision at the same time.

Description

technical field [0001] The invention relates to the technical field of shape measurement, in particular to the technical field of 3D shape measurement. Background technique [0002] When performing 3D measurement, 3D information needs to be collected first. The currently commonly used methods include using machine vision to collect pictures of objects from different angles, and matching and splicing these pictures to form a 3D model. When collecting pictures from different angles, multiple cameras can be set at different angles of the object to be tested, and pictures can also be collected from different angles by rotating a single or multiple cameras. But no matter which of these two methods, it involves the problems of synthesis speed and synthesis accuracy. To some extent, the synthesis speed and synthesis accuracy are a pair of contradictions. The increase of the synthesis speed will lead to the decrease of the final 3D synthesis accuracy; to improve the 3D synthesis a...

AI Technical Summary

Problems solved by technology

And the field has always believed that the way to solve the above problems lies in the selection and update of the algorithm. Up to now, there is no method to improve the synthesis speed and synthesis accuracy from other angles.

However, the optimization of the algorithm has reached the bottleneck. Before the emergence of a better theory, it is impossible to improve the synthesis speed and synthesis accuracy.

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