computer vision: video camera alternatives

lipservice

low cost electronic sensor alternatives are there to video cameras?

ie
photosensitive transistors?

essentially i would like to be able recognize the area of an object (hand, paper cutout) placed directly above an array of sensors, and display a low res image (silhouette) of the object on an lcd.

Gadgetman

Well, in a robot-building book they mentioned taking an old 2114 or similar RAM chip with the metallic top, carefully remove the lid and using the chip as a CCD...

I have no idea how good it is, or where to get hold of the chips...

bobledoux

Try This:

http://www.seattlerobotics.org/encoder/jan97/lowresv.html

Gadgetman

You could also look for one of those cheap 'keychain' digital cameras and hack it apart to get the lens and CCD chip.
(But where to find the data-sheet?)

steve_b

Those keychain cameras are nice and cheap....got me a couple for some future projects....but what then you'd need is a way to convert it from it's digital (file-like) format in to a video signal for an LCD.· Assuming you'd have some sort of component input, you'd have the image to that....

The CMUcam will track colour blobs for you.· but I don't know how you might output that signal to a display.

There is this method from seattle robotics: http://www.seattlerobotics.org/encoder/200110/vision.htm


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Steve
http://members.rogers.com/steve.brady
"Inside each and every one of us is our one, true authentic swing. Something we was born with. Something that's ours and ours alone. Something that can't be learned... something that's got to be remembered."