Bradley’s Status Report for 5/8/21

This week, I spent time improving the pen tracking algorithm by taking into consideration acceleration data. I used the same methodology as our previous approach (application of rotation matrix + double integration) but instead limited it to a much smaller time scope. The acceleration informs us of the direction of pen travel, so we can look at both the openCV positional data as well as the accelerometer data in a weighted calculation to give a more refined estimate of the center of the user’s hand. I also implemented some quality of life features into the pen, such as being able to disable the pen in case the user wants to use an actual mouse instead, as well as calibrating the orientation of the pen. I also spent time with Jade/Jenny to try and solder the parts onto a smaller PCB that would be further shaped into a pen, but due to a COVID scare, that task could not be finished.