Hot on the heels of the GigE vs. FireWire throw-down comes a helpful contribution from Point Grey. In “USB 3.0 Interface Debate” (allegedly also available on the Advanced Imaging website, ‘though I couldn’t find it,) Michael Gibbons of Point Grey explains why the guys in Vancouver are backing that particular horse.
The article goes into considerable depth about the architecture of USB 3.0, how it maintains compatibility with 2.0 and how it delivers higher performance. It’s well-worth reading, if only to get a better understanding of the camera options you’ll have in the near future.
When you’re done with that, you might also want to take a look at “New Standards to Speed Data Transfer” (Advanced Imaging, March 10, 2009,) which compares GigE with the S3200 variant of FireWire.
My view, for what it’s worth, is that while USB 3.0 will have its attractions – principally ease of use and bandwidth – most of the machine vision world will stick with CameraLink and GigeE.
And what of FireWire? Well the poll I conducted tied: 50% said that Firewire had a place and 50% thought that it would be suplanted by GigE. I guess all we can conclude from that is that no one really knows.
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Have you heard about Intel's Light Peak technology? It should come out later this year and looks tailor-made for imaging:
*Fast - 10 Gb/s (with plans to go to 100 Gb/s)
*Long - 100 meter cable length
*Cheap - Small, inexpensive optical cables
*Standard independent - could host GigE Vision
*Ubiquitous - could replace nearly all the ports on your MacBook
Here's a quick overview presentation from Intel's website.
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