Geoffrey L. Barrows's Blog (23)

125 milligram optical flow sensor "TinyTam"

As an exercise in size reduction, we have prototyped a complete optical flow sensor in a 125 milligram and 7mm x 7mm package. This mass includes optics, image sensing, and all processing. Below is a video and two close-up photographs. In the video, note the green vector indicating measured optical flow as a result of image motion.

Image… Continue

Added by Geoffrey L. Barrows on November 1, 2010 at 11:30am — 6 Comments

User programmable sub-gram optical flow / vision sensor

For a long time I've been wanting to make an ultra minimalist vision / optical flow sensor for the hobbyist and experimentalist community. I've been pursuing this as a small IR&D pet project at Centeye. We're almost there.

The above photo shows one of these sensors next to a millimeter scale. The part count is small- One of our 64x64 custom image sensors, an Atmel ATmega644 processor,…


Added by Geoffrey L. Barrows on July 6, 2010 at 7:41pm — 29 Comments


Season Two of the Trust Time Trial (T3) Contest 
A list of all T3 contests is here. The current round, the Vertical Horizontal one, is here

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