[Nfb-science] ideas for labeling small 3-D printed objects

Mon Apr 16 19:48:46 UTC 2018

Thanks for the suggestions everyone.

On 4/16/18, Fahlberg, Tim R.  (TCH) via Nfb-science
<nfb-science at nfbnet.org> wrote:
> Along this line (making QR codes findable that is) ...
>
> Here's some good and bad news about an accessible app that "gives feedback
> to users so that they can center and scan QR codes".
>
> The good news was that the UWashington created an accessible app for the
> iPhone, TGV: Tactile Graphics with a Voice, http://bit.ly/tgvoice that could
> do this. The bad news is that the app hasn't been updated to work with iOS
> 11 (although it could be as I believe the source code is available).  At
> 32:40 in this YouTube video you can hear/see it in use:
> http://bit.ly/tgvdemo (Original link:
> https://www.youtube.com/watch?v=ZsF_jy4S4wc&feature=youtu.be&t=32m40s )
>
> A description of it from the iTunes page: Tactile Graphics with a Voice is a
> joint project with the University of Washington and the DIAGRAM center
> (http://diagramcenter.org/diagramwebinars.html#tactile). When VoiceOver is
> turned on, it gives feedback to users so that they can center and scan QR
> codes. It is part of a larger project to allow people who are blind to
> access text on tactile graphics using embedded QR codes.  This material is
> based upon work supported by the National Science Foundation Grant No.
> IIS-1116051. This work was supported by the U.S. Department of Education,
> Office of Special Education Programs (Cooperative Agreement #H327B100001).
> The barcode scanning code we used was adapted from ZXing's open source
> library (https://github.com/zxing/zxing).
>
> There were plans to add a feature so that if there were multiple QR codes
> near a tactile image (each QR code having a tactile marker that indicated
> its presence) that it would know which one you wanted to listen to based on
> which QR code your finger was closest to. But that feature wasn't added by
> the original team. I met Dr. Richard Ladner, the professor who led this
> team, who has done a lot of other work in this area, and he told me the
> source code was available.
>
> One more thing worth experimenting with if you decide to go in the direction
> of "talking" QR codes is QR code size - amount of text versus scannable
> distance. This is something I learned from the "Download written summary of
> Webinar Q & A" - found on the diagram center #tactile page linked to above:
>
> 19. QUESTION: “Is there limitation how much information you can put on a QR
> code?”
> ANSWER: QR codes come in different resolutions so there is no simple answer.
>   For a 1-inch square code, you can get about 125 characters at the highest
> resolution.  It would be scanned from 6 inches away. QR codes are designed
> to be scanned by cameras found on smartphones.
>
> Dr. Richard Ladner, also provides the PowerPoint presentation he used for
> the TGV presentation - YouTube video.
>
> Tim
>
> -----Original Message-----
> From: Nfb-science <nfb-science-bounces at nfbnet.org> On Behalf Of Donald
> Winiecki via Nfb-science
> Sent: Monday, April 16, 2018 1:38 PM
> To: Kendra Schaber <redwing731 at gmail.com>
> Cc: Donald Winiecki <dwiniecki at handid.org>; NFB Science and Engineering
> Division List <nfb-science at nfbnet.org>
> Subject: Re: [Nfb-science] ideas for labeling small 3-D printed objects
>
> Hi Kendra,
>
> You make a good point! How about this:
>
> If the fabricated artifacts are located in little compartments or cubbies,
> then we could put the bar code or QR code in a particular place on the
> bottom of the compartment.  By placing the bar code or QR code in a
> predictable place within the compartment -- perhaps even providing a place
> to rest the phone and camera so it will focus on the code -- we make it more
> likely that a patron of the museum will be able to use the exhibit as
> intended.
>
> Designing for interactive exhibits is really a matter of designing the space
> so that it is easy to do things one way, and less likely people will do
> things in any other way.  This makes it more certain that patrons to the
> museum will experience the materials as the experts want them to experience
> them.
>
> Of course, one reason to not design in this way is if the goal is to get the
> museum patrons to `discover` their own way.  We might design an interactive
> exhibit like this to help people learn how archaeologists design and conduct
> a dig, in order to better teach the systematic science behind archaeology.
>
>
> _don
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~
> Don Winiecki
> Handid Media • a 501(c)(3) non-profit organization dwiniecki at handid.org
> http://handid.org ~~~~~~~~~~~~~~~~~~~~~~~~d
>
> On Mon, Apr 16, 2018 at 12:28 PM, Kendra Schaber <redwing731 at gmail.com>
> wrote:
>
>> Hi all!
>>  The problem with QR scanner apps is that they don’t always see where
>> the bar coad is located. Sure, the phone may be able to read the bar
>> code but can it actually locate it? Not as well as some people think.
>> Their window has to be either tactile for us to line up the phone with
>> the bar code or the phone app has to have some sort of audio marker to
>> locate the bar code by sound. Where is that gap being filled?
>>
>>
>>
>> Blessed be!!!
>> Kendra Schaber,
>> Citizen Phenologist,
>> Aspiring climatology Student;
>>
>> Preparing to attend Chemeketa Community College for a transfer degree
>> with a climatology degree at Oregon State University, National
>> Federation of the Blind, Capitol Chapter, Salem, Oregon.
>> "When the student is ready, the teacher will appear" Author Unknown.
>>
>>
>> On Apr 16, 2018, at 09:33, Donald Winiecki via Nfb-science <
>> nfb-science at nfbnet.org> wrote:
>>
>> If the bar code can be associated with an audio file describing the
>> artifact, a certain measure of accessibility can be achieved!
>>
>> If the same bar code were to be associated with a BRF (or similar file)
>> that could be sent to a refreshable braille display that would provide a
>> different level of accessibility!
>>
>> Use of a bar code would require a bar code reader.  Modern smartphones
>> have
>> the capability to read bar codes, and web resources could be developed
>> that
>> allow the smartphone to use the bar code to jump to those resource, and
>> then play audio, or send BRF to an attached refreshable braille display.
>>
>> Tactile braille labels can certainly be created for each replica
>> artifact.
>> This label could also include the bar code incorporated into the artifact
>> itself.
>>
>> From there the work of museum design comes into play to invent a physical
>> display structure that allows museum patrons to inspect and manipulate
>> the
>> artifacts while also having access to audio, electronic braille, and/or
>> tactile braille.
>>
>> I imagine a table-height array of cubbies or compartments, with one
>> artifact in each compartment.  The arrangement of compartments and
>> included
>> artifacts would allow a patron to
>> move from one end of the display to the other in order to 
>> experience the artifacts in a particular order
>> ,
>> so that important time-related cultural, material and usage
>> characteristics
>> are learned in
>> the sequence that you -- as the anthropological expert -- consider to be
>> important.
>>
>> In my professional history I have been part of the design, construction
>> and
>> installation of several cultural and military history museums and find
>> this
>> to be an exciting possibility!
>>
>> Hope I haven't over analyzed this, or stepped on anyone's toes.
>>
>> Best,
>>
>> _don
>>
>> ~~~~~~~~~~~~~~~~~~~~~~~~~
>> Don Winiecki
>> Handid Media • a 501(c)(3) non-profit organization
>> dwiniecki at handid.org
>> http://handid.org
>> ~~~~~~~~~~~~~~~~~~~~~~~~d
>>
>> On Mon, Apr 16, 2018 at 9:50 AM, Cheryl Fogle-Hatch via Nfb-science <
>> nfb-science at nfbnet.org> wrote:
>>
>> Hello,
>>
>>
>> I am working with a local 3-D scanning company to scan and produce
>>
>> replicas of artifacts.  We are working with a collection of stone
>>
>> spear points that are small and triangular in shape.  I am looking for
>>
>> ideas about affixing Braille labels to them, or embedding something
>>
>> higher tech into the models as they are made.  The company usually
>>
>> puts a bar code on the replicas, so figuring out how to access that
>>
>> information is also a possibility.
>>
>>
>> Thanks in advance for any suggestions.
>>
>> Cheryl
>>
>>
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>>
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-- 
Cheryl Fogle-Hatch, Ph.D.
Archaeologist and Museum Professional
(443) 939-8217
c.k.fogle at gmail.com
https://www.linkedin.com/pub/cheryl-fogle-hatch/8/224/538
https://cherylfogle.academia.edu/