Calibration of measurement units in alignment with a skeleton model to control a computer system
A system having a plurality of sensor modules and a stereo camera and a computing device. Each sensor module has an inertial measurement unit (IMU) measuring its orientation relative to a reference orientation. Different IMUs may have different reference orientations. To calibrate the IMUs with resp...
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| Format | Patent |
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| Language | English |
| Published |
18.05.2021
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| Online Access | Get full text |
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| Summary: | A system having a plurality of sensor modules and a stereo camera and a computing device. Each sensor module has an inertial measurement unit (IMU) measuring its orientation relative to a reference orientation. Different IMUs may have different reference orientations. To calibrate the IMUs with respect to a common reference (e.g., defined based on a standardized pose of a user), the stereo camera captures a stereo image of a respective sensor module attached to a respective portion of the user; the inertial measurement unit of the respective sensor module generates an orientation measurement at a time of capturing the stereo image; and the computing device calculates, based on the stereo image, at least one orientation and uses the orientation and the orientation measurement in determining a rotation that calibrates measurements of the inertial measurement unit relative to the common reference. |
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