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Re: Web-Cam for PCM-5822, USB/Linux

From: Marcus Wolschon <>
Date: Sat, 06 Jan 2001 11:41:16 +0100

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Doug Sutherland wrote:
> 
> Jeff King wrote:
> 
> > I'm looking for a Web-Cam that (eventually) will run on a yet
> > to be purchased 5822. USB and under Linux. Prefer 640x480.
> 
> Me too, and I want to continuously time/location stamp images
> and archive them, eventually also with audio samples, so I
> can fast forward and rewind through any of my days :)
> 
> > Any recomendations?

I just bought a Philips Vesta-Pro. It has a compression-chip
to do 640x480 at 15fps and averything less at 30fps. Image-
quality is the best I have ever seen in a USB-cam (not my
firts one). Taken apart it's _much_ smaller that it looks
from the outside. I've just taken it apart and am looking for
a plug to extend the wiring between the camery and the compression-
board (separatable and connected by a small 32pin or so plug)
and integrate the camera-board into one ear-piece of my head-set.

Only problem for me is finding such a plug (for not having
to solder with <1mm accuracy) and building a good-looking case.

Just beware of the cheap plastic and the seal at the bottom when
taking that one apart. Never screw out the optics! The plastic
is so cheap that when screwing it back in you erode the grooves.

You can find images, Linux-drivers,... at
http://www.smcc.demon.nl/webcam/
It has cost me 150DM, thats about 75$.

> As far as I can tell, all of these USB webcams are basically
> the same. They all seem to use CMOS or CCD sensors and they
> are all cheap digital cameras.

Then you have not seen it all. _Most_ are cheap ones but you
get good-quality images from _some_ of them. I tried a 3com
that a friend of mine installed as a webcam for his shop.
You are able to read the text on a monitor filmed that is 
about 2m away.

> There may be small diffrences
> in features or image quality between different chipsets, but
> they all appear to be pretty much the same. Seems that the
> most popular chipsets are the VLSI vision (CPiA) and Omni
> Vision (OVL511) chipsets, and there are multiple products
> for each of these with different packaging from different
> vendors. All you need to do is pick a webcam from the
> following list in the packaging that you like:
> 
> http://www.qbik.ch/usb/devices/showdevices.php3?id=9

Nice list.

> 
> I am planning to use the D-Link DSB-C300 primarily because
> the OVL511 driver was written for this specific camera. I
> will naturally rip the webcam apart, throw away the factory
> packaging, make my own small custom cables, and flatten the
> device to make it wearable and covert (I did this with the
> videumcam traveler pcmcia cam and also the parallel port
> creative video blaster).
> 
> > Also, anyone ever use multiple USB cams? I'm hoping to be
> > able to put 4 of them. (This going to go into my car).
> 
> I haven't tried it, but I read about people who have done
> this. If you check the above URL and read the "more info"
> comments for each webcam, you will see comments from some
> people who have done this. Hmmm, and just as it would be
> cool to fast-foward and rewind through any of my days, it
> would also be cool to fast-forward and rewind through any
> you car's days :) It would be even better with multiple
> perspectives. And it could prove to be useful when one of
> those nasty fender benders happens.
> 
>   -- Doug
> 
> ------------------------------------------------------------
>   Grow your own Wearables: http://wearables.los-gatos.net
>  What I'd like is to have you call me and my jacket answers
> ------------------------------------------------------------
> 
> --
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