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Subject:

Re: Blink monitoring/switching

From:

Aejaz Zahid <[log in to unmask]>

Reply-To:

A discussion list for Assistive Technology professionals.

Date:

Thu, 3 Apr 2014 10:31:38 +0000

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (113 lines)

Excellent! Thanks Will. I was thinking the same for a potential Google Glass app :)

The Inference Group at Cambridge (who developed Dasher) were also working on an open source cam based gesture switch system a while back: http://www.inference.phy.cam.ac.uk/opengazer/#switch

Not sure where they are with the project now.

Cheers,

A.



Aejaz Zahid
Head of Research & Development



-----------------------------
Aejaz Zahid

Head of Assessment Services

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-----Original Message-----
From: A discussion list for Assistive Technology professionals. [mailto:[log in to unmask]] On Behalf Of Will Wade
Sent: Wednesday, April 02, 2014 7:23 PM
To: [log in to unmask]
Subject: Re: Blink monitoring/switching

A little slow to respond.. I've just posted this to the access group but thought this may be useful here!

Switch Viacam is from the same group as Eviacam  - the webcam based mouse. Switch viacam allows you to have two areas detected from a camera and set thresholds for each area and a switched action. I've just got it successfully monitoring a blink on each eye - but I'm not sure how useful it would be as a longterm solution - it doesn't track and follow that area (which would be nice if both projects are combined or maybe as a google glass app) so you would have to very little head movement and configure it each time the individual sits down.  The download is here:  http://sourceforge.net/projects/sviacam/files/1.0/sviacam_1.0.0.exe/download and project page here: http://sviacam.sourceforge.net

w

-----Original Message-----
From: A discussion list for Assistive Technology professionals. [mailto:[log in to unmask]] On Behalf Of Harbach Geoff
Sent: Wednesday, February 5, 2014 9:39 AM
To: [log in to unmask]
Subject: Re: Blink monitoring/switching

We have developed a movement sensor that we have used on situations where the client has little or no gross movements, but a flicker in a finger or an eyebrow etc.

Just tried it on myself, and I can adjust the sensitivity to ignore ordinary blinks, but detect a more forceful blink.

We may be able to loan you one for a trial but can't guarantee this.

I will send you a copy of the manual directly.

Geoff

G.J.Harbach  I.Eng  MIED  IIPEM  ATPsoc
Registered Clinical Technologist
Rehabilitation Engineering Specialist
Department of Healthcare Science
West Midlands Rehabilitation Centre
91 Oak Tree Lane, Selly Oak.
Birmingham B29 6JA
Tel 0121 466 3066
[log in to unmask]
[log in to unmask]
www.actwmids.nhs.uk



-----Original Message-----
From: A discussion list for Assistive Technology professionals.
[mailto:[log in to unmask]] On Behalf Of Stuart Marsden
Sent: 04 February 2014 15:33
To: [log in to unmask]
Subject: Blink monitoring/switching

---
This message was sent from an email address external to NHSmail but gives the appearance of being from an NHSmail (@nhs.net) address. The recipient should verify the sender and content before acting upon information contained within.

The identified sender is [log in to unmask]
---
Hi All,

Does anyone have any experience with capturing blinks as an input to a switch?

We have a client requiring a high degree of supervision and who has severely limited function. He has limited control of the direction of his gaze but has good control of blinking. We'd hope to monitor blinking and perhaps alarm when blinking stops.

As is often the case, money is tight, but we do have some resources to build or adapt software, or electro-mechanical gadgets.

Thanks in advance for any ideas or suggestions.

Best

Stu



Dr Stuart Marsden CEng
Clinical Measurement Section
Medical Physics Department
The James Cook University Hospital
South Tees Hospitals NHS Trust
Middlesbrough, TS4 3BW

[log in to unmask]
Tel: 01642 282847 (internal: 52847)

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