Objective of a fractional PWM The derivation of the equation for fractional pulse width modulation (frac_pwm) is shown along with the verilog code implementation. This code has been tested to work on a Spartan 3AN and is available on Bitbucket. My related blog was written June 4, 2016 on a fractional divider (FD) circuit for […]
Fractional PWM in verilog Read More »
Introduction / Motivation I want to formalize an idea I’ve had in analyzing data. This is a work in process. I’m interested to see if machine learning can be applied to a specific engineering problem. The problem I’m working on is in the field of reliability. Specifically I want to determine why a small percentage
Finding Anomalies Read More »
Introduction This blog covers a course project I completed for Learn OpenCV for Faces, conducted by Satya Mallick. The project objective is to use a webcam to detect US coin currency on a table and classify each coin, counting the total change. The project is using OpenCV and Python (WinPython 3.65) running on a Acer
OpenCV Coin Detection Project Read More »
Background Since early 2011 I have used the Labjack digital I/O as a tool in test equipment for reliability testers. I started with Windows based GUI’s with custom app code written in Java. Since that time the same basic architecture was used in a half-dozen programs. The working tool chain has been Netbeans IDE and
Labjack Installation Pre/Post 2015 Read More »
Watershed Compared to Houghs Transform The Watershed algorithm is compared to using the Hough transform to detect circles. In doing so an inherent weakness was found with the Watershed algorithm for this particular application. Specifically, I am using HoughCircles in OpenCV and for the watershed approach I’m using distance_transform_edt from scipy and watershed from skimage.morphology. To show
Compare Houghs Transform to Watershed Algorithm Read More »