John Stowers

A single-file, virtualenv-first python sandbox for running your own LLM and agent generated code

Loopbio in 2020 and 2021: remote use of Loopy, the locust virtual reality system, the science it was used for, and what we added to the products.

A friendly fork of FreemoVR, and the first VR system for freely walking locusts

Loopbio from 2017 to 2019: the Motif and Loopy products, and the science they were used for.

A virtual reality system for freely moving flies, fish and mice

Loopbio’s first year: camera-synchronisation hardware, frames and lighting rigs, and the first scientists using the tools.

Co-founding Loopbio, and the observation that led me there.

Compiling OpenCV 3.0 on Ubuntu 12.04

The most important design principle is minimising the cost of the inevitable failure of your abstraction - and how Python, OpenCV, Arduino, GNOME Shell and ROS each position themselves around it.

Patterns for managing a real-time multi-camera tracking setup

Simplified ROS Distribution

Simplified ROS Distribution

lightweight development prefixes on Linux

ROS + Gtk

Bash Cheat Sheet

python-pcl

ROS + Gtk

An organised person would have blogged about going to GUADEC before the event started.

2011 has been an interesting year.

This page contains a minimal GNU Make reference, adapted for my use from The official quick reference Automatic Variables: Here is a summary of the automatic variables.

I was recently asked to help a colleague access his image processing C-library from python; quite a common task.

I just released PyGTK 2.24, which will almost certainly be the last major PyGTK release.

The PyGTK team is pleased to announce the return of the highly popular all-in-one installer for Windows.

I’m hacking on the new Kinect at the moment and the OpenGL viewer didn’t work for me so I threw together this terrible quality gtk+ one.

I recently made a number of improvements to osm-gps-map , the easy to use mapping widget.