[accessibleimage] Re: Haptic rendering of images

Hi Lisa,

Thanks for that. Yes, when I referred to supplementing images I was thinking about either auditory output, haptic output, or both in addition to a visual image. At least in terms of object identification I would hypothesise that additional information related to the object would help.

The Sensable tools are similar to the IFeel products from Logitech, apart from they offer force feedback along more plains. This enables them to display 3D virtual objects, which can be thought of as some sort of touch based virtual reality. One common use of Sensable's devices does seem to be for virtual sculpture, or simulation of different objects, and so this might be an avenue worth exploring in relation to the blind.

Will
----- Original Message ----- From: "Lisa Yayla" <lisa.yayla@xxxxxxxxxx>
To: <accessibleimage@xxxxxxxxxxxxx>
Sent: Thursday, January 19, 2006 9:57 AM
Subject: [accessibleimage] Re: Haptic rendering of images


Hi,
By supplementing images, do you mean sound and haptic feedback by a mouse?
When we tried it out it was sort of parallel with trying out the Virtouch.
So the idea was how to make
screen images available to someone who is blind. Hmm well it was just a
trial.  Isn't that what tools from
Sensable do?
At the time we just tried with a simple shape. The person who tried it out
was born blind.
Best,
Lisa

accessibleimage@xxxxxxxxxxxxx skriver: 
Hi Lisa,

Interesting.  I hadn't thought about the potential use for supplementing
images before, mainly I was considering scenarios involving image
replacement.  I can see this being useful for low vision users, who can
see
a visual image, but for whom supplementary information may be beneficial.

If you don't mind me asking, what sort of tasks and users were you
working
with?  It's an interesting use, and one that I think is worthy of further
discussion.

Thanks,

Will
----- Original Message ----- From: "Lisa Yayla" <lisa.yayla@xxxxxxxxxx>
To: <accessibleimage@xxxxxxxxxxxxx>
Cc: <accessibleimage@xxxxxxxxxxxxx>
Sent: Wednesday, January 18, 2006 8:28 AM
Subject: [accessibleimage] Re: Haptic rendering of images


Hi Will,

I have worked a little bit with Logitechs haptic feedback mouse a few
years back. We tried it out a bit. It was very interesting and
definitly a 
lot of potential. I was using the designer bit adding effects to images.
There was a bit of software problem, but is likely was more due to need
of 
learning the program better.   A state agency in Canada uses the haptic
feedback for freely available downloadable maps with sound. Have also
used 
Virtouch a  haptic mouse.  Also some years ago.
The limited experience I have gotten is that these tools can be very
useful for the user. From the designers end it would be advantageous the
programs are relativly easy to use. There is the cost issue also.
Regards,
Lisa

accessibleimage@xxxxxxxxxxxxx skriver: 
Hi,

Whilst I don't really work in accessibility any more, it's no longer my
day job but rather something of a part time hobby now, I may be able to
combine accessibility with my day job, if only in a little way.  I'm
currently working on my PhD in the field of using haptic devices to aid
in collaberative working between two parties.  For those of you
unfamiliar with the field of haptics, it is the study of kinesthetics
and 
cutaneous touch and applying these to generate virtual objects that
people can touch.  Consider it something akin to touchable virtual
reality.

Whilst I'm investigating it's application to enhancing collaberation, it
strikes me that this could be a means by which blind people could gain
access to images, in fact, Sensable, who make the devices I'm using,
cite
accessibility as one of the potential applications. So, I'm wondering
if 
anyone has had previous experience with using haptic devices and
virtually generated tactile images.  If so, what were your impressions
and did you encounter any problems?  I'm fast gaining an understanding
of 
the psychology involved with this sort of interface, and it would be
interesting to see if current psychological thought can't resolve some
of 
the problems that may exist.

Thanks,

Will 


Lisa Yayla
Huseby Kompetansesenter
Oslo Norway
lisa.yayla@xxxxxxxxxx



Lisa Yayla
Huseby Kompetansesenter
Oslo Norway
lisa.yayla@xxxxxxxxxx





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