A high-speed acquisition and measurement device for target 3D information

Abstract

The present invention provides a high-speed acquisition and measurement device for target 3D information, including an image acquisition device, a rotating device and a background plate, wherein the rotating device is used to drive the rotation of the image acquisition device and the rotation of the background plate; the background plate and the image The acquisition device keeps relative arrangement during the rotation process, so that the background plate becomes the background pattern of the image collected by the image acquisition device during acquisition; the background plate is required to meet the preset conditions. For the first time, it is proposed to increase the synthesis speed and synthesis accuracy by increasing the way that the background plate rotates with the camera. By optimizing the size of the background plate, while reducing the burden of rotation, it is ensured that the synthesis speed and synthesis accuracy can be improved 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

However, in practical applications, it is found that unless there is an accurate angle measurement device, the user is not sensitive to the angle, and it is difficult to determine the angle accurately; the size of the target object is difficult to accurately determine, especially in some applications where the target object needs to be replaced frequently. A lot of extra work is required, and professional equipment is required to accurately measure irregular targets

Measurement errors lead to camera position setting errors, which will affect the speed and effect of acquisition and synthesis; the accuracy and speed need to be further improved

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