Three-dimensional imaging method and system for human body

The present invention is applicable to the technical field of three-dimensional imaging. Provided are a three-dimensional imaging method and system for a human body and a method for simultaneously calibrating multiple control base stations. Under the condition that effective fields of view of all distributed sensors do not spatially overlap, the structural parameters and the global matching parameters of all the sensors are calibrated. By using a corresponding point searching method that combines phase shift with random structured light, the image collection time for obtaining single-viewpoint depth data is shortened. By using the thought of time multiplexing, the whole data collection time of the system is compressed, and the design of distributed computing enhances the computing capability of the whole system and increases the speed for data acquisition. According to the calibrated global matching parameters of all the different sensors, the depth data of the different sensors is matched automatically. The system can be debugged and expanded conveniently, the automation degree is high, and the three-dimensional scanning process is easy to implement.