A calibration method, a calibration system and a calibration base station for a motion capture node

Abstract

The invention discloses a calibration method, a calibration system and a calibration base station of motion capture nodes. According to the method, firstly, according to slewed laser beams emitted bythe calibration base station, a rectangular coordinate system is built; then according to calibration time reference, actual arrival time of pulse signals and the scanning speed of the slewed laser beams, included angle of the pulse signals and coordinate axes are determined; finally, according to relative positions of the included angles and the motion capture nodes, calibration is conducted. Therefore, bBy means of the calibration method, calibration system and calibration base station of the motion capture nodes, the non-distinctive node calibration s can be calibratedrealized, when a producer produces the nodes, there is no need to distinguish the nodes are not needed to be distinguished, there is no need to download different programs for the different nodes, there is no need to develop different molds, and during storage, there is no need to distinguish specifically, so that the production efficiency is greatly improved, and the production cost is reduced; meanwhile, during use,there is no need to distinguish the nodes, there is no need to wear according to stated positions, calibration can be conducted after wearing is conducted, the calibration time is short, and the learning cost is low, so that the calibration method, calibration system and calibration base station of the motion capture nodes are user friendly, has good application prospects, and are convenient to implement and popularize.

Description

technical field [0001] The invention relates to the technical field of motion capture, in particular to a motion capture node calibration method, a calibration system and a calibration base station. Background technique [0002] The current motion capture has several nodes in use. Each node collects the posture information of different parts of the body, and then transmits it to the host computer. The host computer needs to distinguish which node the data belongs to when displaying. The existing calibration scheme is to burn different application programs for each node during production. Assuming that there are 17 nodes, 17 programs are required, and they need to be differentiated on the hardware. It is easy to cause confusion during production, wrong programs, and production efficiency. Very low, high production cost. When users use it, they also wear fixed nodes on fixed parts according to the text prompts on the nodes. For example, they can only wear the head nodes on th...

AI Technical Summary

Problems solved by technology

The existing calibration scheme is to burn different application programs for each node during production. Assuming that there are 17 nodes, 17 programs are required, and they need to be differentiated on the hardware. It is easy to cause confusion during production, wrong programs, and production efficiency. Very low, high cost to generate

When users use it, they also wear fixed nodes on fixed parts according to the text prompts on the nodes. For example, they can only wear the head nodes on the head, which is not only inconvenient to use, but also leads to data errors if the user wears the wrong cause motion capture failure

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