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Assistive Technology Seminar
Fall 2011




                               Julia D Olsheskiki
                               Abhishek Srivastava
                               Hyewon Suh
   RP is an eye diseases causing retinal
    degeneration.

   Symptoms
      ▪ Symptoms often first appear in childhood, but severe vision
        problems do not usually develop until early adulthood.
      ▪ Decreased vision at night or in low light
      ▪ Loss of side (peripheral) vision, causing "tunnel vision"
      ▪ Loss of central vision (in advanced cases)
                                   (Source: National Center for Biotechnology Information, U.S)
Needs Analysis 1 – w/ Vincent
   People with RP tend to have tunnel vision but often not aware of it because
    brain is filling in the missing info.

   Trouble with low light environments. – can be problematic if it suddenly
    becomes dark due to weather or shadows.

   Trouble with less familiar routes – if wrong turn is made, it can be very
    problematic to find way home.

   Many individuals feel the need to hide their disability and it is often these
    individuals that have the most trouble. This puts them at risk for injury. This
    has implications for the inconspicuous nature of the design.

   Despite all risk, people in early stage of RP want to drive to maintain their
    independence.

   Because these individuals can "see", they tend to over-estimate their
    abilities and often neglect to plan ahead.
System Design 1
   Create a in-vehicle device to assist drivers with RP
   Visual display that dynamically changes with
    lighting conditions
     enlarge display and increase contrast when driver enters
      area with low light
     Provide driver more navigational details when in
      unfamiliar area
   Give driver information regarding the length of
    their route and remaining time until dusk or
    weather event
Needs Analysis 2 – FFB distribution list

   Atlanta Chapter leader, “My support group has successfully
    talked some of our RP driving members out of driving, so I do
    not know that many that still are.”
   Respondent 1, “ Sometimes with Atlanta traffic it would be dark
    by the time I got to my neighborhood. I would have to pull into
    the shopping center about 2 miles away and wait for my
    husband to come and get me at the shopping center as I was
    afraid to drive on the dark roads to get home.”
   Respondent 2, “As far as traffic lights were concerned I would just
    follow the car in front of me through an intersection praying the
    light was green. After a few times doing that I took myself off
    the road.”
Needs Analysis 2 – FFB distribution list
   Respondent 3, “I cannot drive as soon as dusk begins.”
   Respondent 4, “With sunshine streaming through the windows
    of the car it is blinding with those of us with RP. I would
    sometimes wear a visor and sunglasses to try to combat this
    situation.”
   Respondent 5, “The last few years that I did drive were purely
    luck and a prayer that I did not get killed or kill someone
    else...”
   Respondent 5, “At one moment, I would look and the lane would
    be clear and then the next second...a truck would barrel by
    which I did not see until it was passing...it was as if it came out of
    no where! “
System Design 2

   Need to augment the missing, peripheral
    information
   Include warning for lane merges
Needs Analysis 3 – w/ Brenda
   RP Diagnosed in her 40s with 25% vision loss, 16 years later she
    now has 75% vision loss
   Driving
     ▪ 10 miles to work would take 3 bus changes and a 2 hr
       commute with public transportation – also, her closest bus
       stop is 3 miles away
       ▪ planning to leave the home that she and her late husband purchased to
         move into more urban area with better public transportation
     ▪ drives to only places she knows (e.g., grocery store) during
       the day on weekends
     ▪ nervous about 4-way stops, feels like cars “appear out of
       nowhere”
     ▪ Hides the fact that she still drives from her support group
Needs Analysis 3 – w/ Brenda
   Work
     ▪ Didn't tell anybody at work about her condition for a long
       time for fear of retribution
     ▪ No special software for computer, but uses mainstream
       system magnifiers (i.e., font enlargement)

   Problems in real life
      ▪ Crowds
      ▪ Dark restaurants
      ▪ Bright light -> glare
      ▪ TV bottom line “ticker” information is useless
System Design 3
   Provide detailed information on route regarding
      ▪ Pedestrians
      ▪ Traffic Lights
      ▪ Lighting conditions – dark/glare
        ▪ Weather Change
        ▪ Time remaining until dusk
      ▪ Intersections
      ▪ Lane merging
   Good size
      ▪ Not a king-size "monster”, portable, not hiding driver’s viewing
        window

   Detailed information is very helpful
      ▪ Many times, pedestrians blend in with the background and hard to
        tell if an actual person is standing there

   Font and display change
      ▪ Ability to read changes with lighting conditions and stress level
      ▪ e.g) Under stressful situations like unexpected weather change, eye
        condition get affected and see worse than usual

   Quicker warning
      ▪ In urgent situation (e.g. merging), speed up the speech rate
   Speech rate adjustment
   Richer auditory feedback

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Assistive GPS for patients with RP

  • 1. Assistive Technology Seminar Fall 2011 Julia D Olsheskiki Abhishek Srivastava Hyewon Suh
  • 2. RP is an eye diseases causing retinal degeneration.  Symptoms ▪ Symptoms often first appear in childhood, but severe vision problems do not usually develop until early adulthood. ▪ Decreased vision at night or in low light ▪ Loss of side (peripheral) vision, causing "tunnel vision" ▪ Loss of central vision (in advanced cases) (Source: National Center for Biotechnology Information, U.S)
  • 3.
  • 4. Needs Analysis 1 – w/ Vincent  People with RP tend to have tunnel vision but often not aware of it because brain is filling in the missing info.  Trouble with low light environments. – can be problematic if it suddenly becomes dark due to weather or shadows.  Trouble with less familiar routes – if wrong turn is made, it can be very problematic to find way home.  Many individuals feel the need to hide their disability and it is often these individuals that have the most trouble. This puts them at risk for injury. This has implications for the inconspicuous nature of the design.  Despite all risk, people in early stage of RP want to drive to maintain their independence.  Because these individuals can "see", they tend to over-estimate their abilities and often neglect to plan ahead.
  • 5. System Design 1  Create a in-vehicle device to assist drivers with RP  Visual display that dynamically changes with lighting conditions  enlarge display and increase contrast when driver enters area with low light  Provide driver more navigational details when in unfamiliar area  Give driver information regarding the length of their route and remaining time until dusk or weather event
  • 6. Needs Analysis 2 – FFB distribution list  Atlanta Chapter leader, “My support group has successfully talked some of our RP driving members out of driving, so I do not know that many that still are.”  Respondent 1, “ Sometimes with Atlanta traffic it would be dark by the time I got to my neighborhood. I would have to pull into the shopping center about 2 miles away and wait for my husband to come and get me at the shopping center as I was afraid to drive on the dark roads to get home.”  Respondent 2, “As far as traffic lights were concerned I would just follow the car in front of me through an intersection praying the light was green. After a few times doing that I took myself off the road.”
  • 7. Needs Analysis 2 – FFB distribution list  Respondent 3, “I cannot drive as soon as dusk begins.”  Respondent 4, “With sunshine streaming through the windows of the car it is blinding with those of us with RP. I would sometimes wear a visor and sunglasses to try to combat this situation.”  Respondent 5, “The last few years that I did drive were purely luck and a prayer that I did not get killed or kill someone else...”  Respondent 5, “At one moment, I would look and the lane would be clear and then the next second...a truck would barrel by which I did not see until it was passing...it was as if it came out of no where! “
  • 8. System Design 2  Need to augment the missing, peripheral information  Include warning for lane merges
  • 9. Needs Analysis 3 – w/ Brenda  RP Diagnosed in her 40s with 25% vision loss, 16 years later she now has 75% vision loss  Driving ▪ 10 miles to work would take 3 bus changes and a 2 hr commute with public transportation – also, her closest bus stop is 3 miles away ▪ planning to leave the home that she and her late husband purchased to move into more urban area with better public transportation ▪ drives to only places she knows (e.g., grocery store) during the day on weekends ▪ nervous about 4-way stops, feels like cars “appear out of nowhere” ▪ Hides the fact that she still drives from her support group
  • 10. Needs Analysis 3 – w/ Brenda  Work ▪ Didn't tell anybody at work about her condition for a long time for fear of retribution ▪ No special software for computer, but uses mainstream system magnifiers (i.e., font enlargement)  Problems in real life ▪ Crowds ▪ Dark restaurants ▪ Bright light -> glare ▪ TV bottom line “ticker” information is useless
  • 11. System Design 3  Provide detailed information on route regarding ▪ Pedestrians ▪ Traffic Lights ▪ Lighting conditions – dark/glare ▪ Weather Change ▪ Time remaining until dusk ▪ Intersections ▪ Lane merging
  • 12. Good size ▪ Not a king-size "monster”, portable, not hiding driver’s viewing window  Detailed information is very helpful ▪ Many times, pedestrians blend in with the background and hard to tell if an actual person is standing there  Font and display change ▪ Ability to read changes with lighting conditions and stress level ▪ e.g) Under stressful situations like unexpected weather change, eye condition get affected and see worse than usual  Quicker warning ▪ In urgent situation (e.g. merging), speed up the speech rate
  • 13. Speech rate adjustment  Richer auditory feedback