Jeff studied econometrics in graduate school, then spent a 30 year career writing code in statistics, economics, and biotech. Now writing computer vision software in Python to enable small Raspberry Pi computers to track wildlife and manage Yin Yang Ranch, his small urban permaculture farm in Southern California. Author / maintainer of imageZMQ, a set of Python classes for moving OpenCV images between computers using the ZMQ messaging library. Also an avid touring cyclist.