Let's Make Robots!

machine vision

Waiting for a Pixy and Thinking of Challenge

I don't know how many of you ordered a Pixy from their Kickstarter, but I've seen the camera mentioned several times on LMR.

I was thinking of issuing a challenge to see who comes up with the first Pixy aided robot but I think such a challenge needs to be better defined.

What would be a good challenge? Line following with Pixy as the only sensor?

Simple 4 pixel camera sensor

In the following I describe a simple 4 pixel camera sensor, which can be versatilely used in robotics.

The sensor consists in general of four pin photo diodes with a relatively large photo sensitive area, arranged in a square, and an according collimator lens. Every photo diode can be thought of a quadrant of a two dimensional graph. We can use the sensor to measure the intensity of light, detect motions, track a light source in two dimensions or do basic 2-D optical flow calculations.

When complete, Navigate via GPS, colision avoidance sensors, and machine vision
Using a
I have decided to move on to other things, GPS had some serious flaws, one of which would require me to drill out all the rivets, remove his shell, and replace two … Read more

Roborealm

Does anyone use Roborealm for machine vision? I just want to know if it's worth buying it or if there is a free software of the same sort?

Uses a webcam and robot vision to navigate around obstacles
Obstacle avoidance is one of the most important aspects of mobile robotics. Without it robot movement would be very restrictive and fragile. This tutorial explains … Read more