Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!uunet!mcsun!cernvax!ethz!chx400!olsen!iony From: iony@olsen.UUCP (Ion Yadigaroglu) Newsgroups: comp.graphics Subject: Re: digitizing images (was Re: Scientific Visualization again) Summary: Use a CD player for digitizing? Keywords: digitizing CD Message-ID: <126@tobler.UUCP> Date: 28 Nov 89 16:13:41 GMT References: <11726@phoenix.Princeton.EDU> <1989Nov25.142552.1702@hellgate.utah.edu> <3399@jhunix.HCF.JHU.EDU> <5646@eos.UUCP> <1989Nov27.024857.9480@ux1.cso.uiuc.edu> Reply-To: iony@tobler.UUCP (Ion Yadigaroglu) Organization: Olsen & Associates, Zurich, Switzerland Lines: 18 This discussion brings to mind a project I've had for some time (not in any way started). I was thinking of modifying a CD player to make a microdensitometer. You would put the (small) strip of film on a disk with a big hole cut out. Advantage would be of course that you could re-use most of the CD player, including laser, lens, motor, speed-controling circuit, stepper motor for laser, and maybe even the feedback tracking circuit (to position the laser). The only hardware missing is a good intensity cell on the other side with its A/D converter. Problems are obvious though: difficulty in playing around with mass produced electronics, synchronizing all the different signals, taking care of curved pixels, etc. Anybody like the idea? Ion Brought to you by Super Global Mega Corp .com