Accelerometer and Gyroscope calibration: Bias, Non-othagonality and scale factor

One of the first entries in this blog dealt with calibrating an magnetometer. This post will be a continuation of that, only for the inertial sensors. The magnetometer calibration can be found here. Most AHRS use an accelerometer, gyroscope and a magnetometer. Gyroscopes and accelerometer require calibration as well which will be the subject of this post. Below I'll outline a process in which calibrates an accelerometer and gyroscope for scale factors errors, bias and non-orthogonality. The method can be preformed without any special tools. Source code can be found at the project repository here

Raspberry Pi Speed Sign Detector: Classifiers and Neural Networks

This post will detail a progress update on a speed limit sign detection project. It will present the results of a lbp classifier and neural networking for the purpose of detecting US speed limit signs. Readers are encouraged to read part 1 before continuing with this post.

All code for this project can be found here