Make:

• DIY Halloween - The Classics :: Fog Chiller
• BUG on Arduino action
• NoiseBridge: new SF hacker space
• Pedal powered tank
• BASE jumping with accelerometers
• Self-disinfecting toilet brush

Can't wait for this to become standard tech!
Q Could you use an IR light source by the camera and use the red-eye effect to track the eyes? Then you wouldn't need batteries or a special wearable.

Human eyes are not reflective.
If they were, you would have 2 sparks on every pic you take with a flash.
At least you can use your idea to track your cat's eyes ;)

Immersive digital media for cats is an up and coming field, now more than ever before.

Also eyewear for dogs. Oh just you wait and see.

Ha ha ha, yes games for pets is an underexploited market. But seriously, there were articles about some company using IR and red-eye to track Billboard "hits" for market research, so there must be some reflection of IR from human eyes. And yes, most of my photos have a two red dots in the eyes when I use a cheap disposable camera. I also though of little reflector dots on the glasses to reduce weight and electronics, but if you could do it without any dorky headwear, then you're laughing all the way to the bank. Wouldn't be surprised if this were patented already.

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