USB 2.0 Verus Firewire for web camera's

deadfingers

Hi,

I am looking for opinions and facts on weather it is better to use a usb 2.0 web camera or a f irewire camera as I am working on a vision project and I would like some information on which camera to choose.

Thanks
D

Chalk

would a web cam not be streaimng the data at an incredibly slow rate?

i run a webcam on usb 1.1 [640x480 vga, - sony eyetoy] - home monitoring from work
are you trying to run a much higher data rate camera?

deadfingers

No i am using a firewire camera at the mo, its running at 400MB/S which is real time. Usb 1.1 runs at 12.5MB/S i think!

mukki

heres a good site for getting an idea of speeds

http://www.acme.com/build_a_pc/bandwidth.html
here ya go the one furthest from the bottem is best

so i guess usb2 beats IEEE 1394 (firewire)
but IEEE 1394b is way ahead

but best bet is to plug you 640x480 webcam into the 4-way interleaved PC1600 (DDR200) SDRAM slot :rolleyes:

padraigf

Firewire isnt 400 mB/s. It's 400 mb/s. Bit of a difference.....
USB 2.0 should be pretty much the exact same as firewire for your application. A camera wont come close to saturating either.

A DV camera uses 25 mb/s which is 3.25 mB/s. Usb 1.1 ain't good enough, but anything else is.

unkel

Firewire is 400mbps, USB 2 is 480mbps

USB is a little bit faster so, but there is not much in it. Firewire cables are generally more expensive as are firewire cards

Ciaran500

In practice firewire seems to be faster than USB2.

http://www.frozentech.com/index.php?option=com_content&task=view&id=7&Itemid=1
http://www.usb-ware.com/firewire-vs-usb.htm

Chalk

480mbps webcams @_@

dvds dont go that speed.....

and where are you gettign the upload...