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Re: Webcams and focus

From: Duval Sebastien <>
Date: Tue, 06 Sep 2005 17:42:02 +0900

For endoscope like fibers with microdisplays, you might want to check 
work done at HITLab US
* http://www.hitl.washington.edu/research/endoscope/

There is a huge group here (I am visiting for a few weeks) working on 
the development of a new type of endoscope, and I know some practical 
applications were done, e.g. to help visually impaired people detect 
obstacles. Check Eric Seibel's publications with "low vision" in their 
title.
* http://www.hitl.washington.edu/people/eseibel/cv.html

-- 
Sebastien Duval, now in Seattle (USA)
Ph.D. student <http://www.soken.ac.jp>

-------- Original Message --------
Date: 2005/09/04 19:06
From: DLP
> Is focus (or lack of...) on a webcam,for those who are currently or have 
> been bonified cyborgs, ever been a problem?
> What are some ways you've found to deal with it?
> Recommend any particular optics or components for automatic or 
> electronically/mechanically aided focus with camera elements that are 
> appropriate for wearing?
> 
> I notice alot of 'borgs' today as in the past it seems are using hand 
> held digital cameras, such as Steve Mann in his photography; for 
> purposes similar to or of EyeTap and similar technologies is there any 
> middle ground between handheld digital cameras of high resolution(high 
> priced too!) and the universally affordable CCD or CMOS element common 
> in webcams and barebones kits sold by electronics suppliers?
> 
> Im looking at getting a camera soon to do OCR in Linux and in my case I 
> would really like to have a camera with the same perspective as I have, 
> in the same way an Eyetap has the same perspective as the wearer. For 
> this reason the topics of focus, quality/price, and footprint all become 
> perhaps a bit more important than just everyday-use cameras.
> 
> I understand the great advantage handheld digital cameras have are the 
> optics and the element they carry, but most importantly - in that they 
> contribute to the footprint - the optics. Has anyone experimented using 
> glass(or otherwise?) viewing fibers like those found in endoscopes with 
> cameras? What about endoscope like fibers  with microdisplays(Something 
> I hope to do, permitting I have the budget for it and it doesn't appear 
> utterly hopeless by the time I do have the budget for it)
> 
> Thanks all.
> 
> 
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