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Re: Frame grabbing

Hi Ewan

Well I wonder, are you going to need to view those images later or you just
need to store them and retrieve them at a later time on a computer?

The idea would be not to use a full blown PC based system with an OS
but rather something around a PIC/AVR microcontroller and a few other chips
(for hardware compression?) or even use a microprocessor based system.
The challenge would be to take the firewire signals and convert them to some
usable format (jpg, tga etc and store on the CF) all without the need for an
OS.

I've seen a few projects around the Net that were developed around PICs
that would read CD ROM or a CF the files on the same so perhaps a bit more
research just to give you some perspective on the scope or the requirements.

Unfortunatelly Java or even C will not do, you will have to deal with
Assembler
(microcontroller assembler, derivate of normal Assembler) but luckilly there
are
plenty of resources on the Net to get going on that.

Just thought to toss out what first came to mind, else I'd like to see your
project
get going (a project page with updates would be cool)

-pedja

----- Original Message -----
From: "Ewan Sinclair" <>
To: <>
Sent: Sunday, November 09, 2003 8:33 PM
Subject: Frame grabbing

> Myself and a friend are trying to assemble a small wearable system that
can
> grab frames from a firewire camera and store them (We were thinking of
using
> CF for storage). It seems like a bit of overkill to buy a PC-104 board and
> firewire module or mini-ITX board for such a simple task, but I'm not too
> sure what else to do.
>
> In any case, in terms of software, I gather that White Dwarf Linux is the
> best bet for an OS. Unfortunately, I am a bit stumped when it comes to the
> grabbing and storing of frames. I have a fair knowledge of Java and a
pretty
> rudimentary knowledge of C, is this a relatively easy task to accomplish
in
> either language? Also, does the process vary much from camera to camera?
Any
> links to resource sites would be hugely appreciated.
>
> Ewan
>
>
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