Three-dimension measuring system for dynamic object

Abstract

The invention discloses a three-dimension measuring system for a dynamic object, which comprises a clock synchronous controller, a digital light processing (DLP) projector, two charge coupled device (CCD) cameras, an image acquisition card and a computer, wherein a color wheel for generating colorful images is removed from the DLP projector, included angles between optical mandrels of the CCD cameras and the optical mandrel of the DLP projector are both between 20 and 60 degrees, and the relative positions of the DLP projector and the CCD cameras are unchanged during measurement; the computer is a graphic card with a calculation-based uniform equipment framework; and the clock synchronous controller is connected with the DLP projector and the CCD cameras respectively, the DLP projector is connected with the computer, and the CCD cameras are connected with the computer through the graphic card respectively. The system has a most obvious characteristic of high measuring speed and can calculate and display the three-dimensional information of the dynamic object in real time.

Description

technical field [0001] The invention belongs to the field of precision measurement, and in particular relates to a three-dimensional measurement system for dynamic objects, which can perform real-time three-dimensional measurement on moving objects. Background technique [0002] With the rapid development of computer science and technology, the three-dimensional measurement technology of dynamic objects has more and more extensive application prospects in many industries. In the field of industrial automation, this technology can be used to monitor the production line in real time, and to find quality problems in production in time; in the fields of sports analysis, medical treatment, 3D games and movie special effects, this technology can be used to measure the movement of human body or animals. morphological and expression features, and realize three-dimensional digital processing; in the automobile safety test test, this technology can also be used to conduct a complete t...

AI Technical Summary

Problems solved by technology

[0011] Song Zhang of the United States also uses GPU in the real-time dynamic three-dimensional measurement technology, and realizes the measurement of facial expression changes, but its algorithm can not make good use of the parallel computing function of GPU, so it can only be used to measure the movement speed. slow object

[0012] To sum up: At present, although structured light measurement technology can measure the three-dimensional surface shape of objects with high precision, it needs to take multiple images during the measurement process, and the processing time is too long, which cannot meet the needs of real-time dynamic object measurement. In most cases, only offline data processing can be performed

Therefore, the existing structured light measurement technology cannot realize high-resolution real-time dynamic measurement.

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