Sensor fusion

This app displays your device's 3D orientation using a 3D compass visualization. It showcases the capabilities of various sensors and sensor fusion techniques. Gyroscope, accelerometer, and compass data are combined in different ways, resulting in a rotatable 3D compass that mirrors your device's movements.

A key innovation is the fusion of virtual sensors: "Improved Orientation Sensor 1" and "Improved Orientation Sensor 2." These fuse the Android Rotation Vector with a virtual gyroscope, providing unprecedented stability and accuracy in pose estimation.

For comparison, the app also includes:

• Improved Orientation Sensor 1 (fuses Android Rotation Vector and calibrated gyroscope; less stable, but more accurate)
• Improved Orientation Sensor 2 (fuses Android Rotation Vector and calibrated gyroscope; more stable, but less accurate)
• Android Rotation Vector (Kalman filter fusion of accelerometer, gyroscope, and compass)
• Calibrated Gyroscope (separate Kalman filter fusion result of accelerometer, gyroscope, and compass)
• Gravity + Compass
• Accelerometer + Compass
• Deprecated Android Orientation Sensor (complementary filter fusion of accelerometer, gyroscope, and compass)

The source code is publicly accessible; find the link in the About section.

Version 2.0.117 Update (Jul 22, 2024)

This update features a complete redesign of the user interface, now presented as a 3D compass.