Omnivision extension + Full package e-puck extension for Gumstix® Overo COM
Omnivision extension packaged with the e-puck extension for Gumstix Overo COM.
Camera for e-puck robot.
The camera is the same as the one mounted on the e-puck, having a maximum resolution of 640x480 (thus 480x480 for this purpose) and a framerate of 18 fps with the current driver. The driver of the camera is open-source, you can find it at GCtronic.
To unwrap the image you must do a polar transform, and crop. RoboRealm is a great software package that can easily do this unwrap for you.
The omnivision module was re-designed to include 3 RGB leds placed 120° from each other and an additional battery pack that doubles the available energy.
Once you get an image from the camera you can post-process the image in order to see the whole 360-degrees laid out in a rectangular strip. For this purpose vision software called RoboRealm; you can download a free 30 days trial. Once you installed the software you can proceed with the following steps:
Grab an image from the camera
Start RoboRealm, open the grabbed image and apply a polar transformation (Transforms=>Polar); you should get an image similar to the following one
Finally you need to simply cut the relevant part of the image, as shown here