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computer vision: video camera alternatives — Parallax Forums

computer vision: video camera alternatives

lipservicelipservice Posts: 4
edited 2005-01-28 15:25 in General Discussion
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.

Comments

  • GadgetmanGadgetman Posts: 2,436
    edited 2005-01-28 09:41
    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...
  • bobledouxbobledoux Posts: 187
    edited 2005-01-28 14:23
    Try This:

    http://www.seattlerobotics.org/encoder/jan97/lowresv.html
  • GadgetmanGadgetman Posts: 2,436
    edited 2005-01-28 14:33
    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_bsteve_b Posts: 1,563
    edited 2005-01-28 15:25
    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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