Mobility Aid For The Blind By Amir Gonnen. The oldest aids Walking Cane Guide dog Problems: –...
-
date post
21-Dec-2015 -
Category
Documents
-
view
216 -
download
0
Transcript of Mobility Aid For The Blind By Amir Gonnen. The oldest aids Walking Cane Guide dog Problems: –...
![Page 1: Mobility Aid For The Blind By Amir Gonnen. The oldest aids Walking Cane Guide dog Problems: – Skills and Training phase – Range – Very little information.](https://reader035.fdocuments.in/reader035/viewer/2022062714/56649d5a5503460f94a3ab6b/html5/thumbnails/1.jpg)
Mobility Aid For The BlindMobility Aid For The Blind
By Amir Gonnen
![Page 2: Mobility Aid For The Blind By Amir Gonnen. The oldest aids Walking Cane Guide dog Problems: – Skills and Training phase – Range – Very little information.](https://reader035.fdocuments.in/reader035/viewer/2022062714/56649d5a5503460f94a3ab6b/html5/thumbnails/2.jpg)
The oldest aidsThe oldest aidsWalking CaneGuide dogProblems:
– Skills and Training phase– Range– Very little information conveyed
![Page 3: Mobility Aid For The Blind By Amir Gonnen. The oldest aids Walking Cane Guide dog Problems: – Skills and Training phase – Range – Very little information.](https://reader035.fdocuments.in/reader035/viewer/2022062714/56649d5a5503460f94a3ab6b/html5/thumbnails/3.jpg)
A Technological SolutionA Technological Solution
Information about the
environment
Digital Processing
Perceptual input perceived
by the blind
Sensor Computer Output Device
This is where I’m going to focus
![Page 4: Mobility Aid For The Blind By Amir Gonnen. The oldest aids Walking Cane Guide dog Problems: – Skills and Training phase – Range – Very little information.](https://reader035.fdocuments.in/reader035/viewer/2022062714/56649d5a5503460f94a3ab6b/html5/thumbnails/4.jpg)
Recent DevelopmentsRecent DevelopmentsSoundscapes from “The vOICe”“Stereo vision system for the Visually
Impaired”, University of Guelph, Canada
The “NavBelt”The “GuideCane”
![Page 5: Mobility Aid For The Blind By Amir Gonnen. The oldest aids Walking Cane Guide dog Problems: – Skills and Training phase – Range – Very little information.](https://reader035.fdocuments.in/reader035/viewer/2022062714/56649d5a5503460f94a3ab6b/html5/thumbnails/5.jpg)
“ “ The vOICeThe vOICe””
![Page 6: Mobility Aid For The Blind By Amir Gonnen. The oldest aids Walking Cane Guide dog Problems: – Skills and Training phase – Range – Very little information.](https://reader035.fdocuments.in/reader035/viewer/2022062714/56649d5a5503460f94a3ab6b/html5/thumbnails/6.jpg)
Stereo VisionStereo Vision
![Page 7: Mobility Aid For The Blind By Amir Gonnen. The oldest aids Walking Cane Guide dog Problems: – Skills and Training phase – Range – Very little information.](https://reader035.fdocuments.in/reader035/viewer/2022062714/56649d5a5503460f94a3ab6b/html5/thumbnails/7.jpg)
The “NavBeltThe “NavBelt””
![Page 8: Mobility Aid For The Blind By Amir Gonnen. The oldest aids Walking Cane Guide dog Problems: – Skills and Training phase – Range – Very little information.](https://reader035.fdocuments.in/reader035/viewer/2022062714/56649d5a5503460f94a3ab6b/html5/thumbnails/8.jpg)
The “GuideCaneThe “GuideCane””
![Page 9: Mobility Aid For The Blind By Amir Gonnen. The oldest aids Walking Cane Guide dog Problems: – Skills and Training phase – Range – Very little information.](https://reader035.fdocuments.in/reader035/viewer/2022062714/56649d5a5503460f94a3ab6b/html5/thumbnails/9.jpg)
ProblemsProblemsToo much informationMissing sub-conscious vision
processes– Interpretation of a continuous 2D
signal into a set of recognizable objects in a 3D space
– Movement velocity and direction
![Page 10: Mobility Aid For The Blind By Amir Gonnen. The oldest aids Walking Cane Guide dog Problems: – Skills and Training phase – Range – Very little information.](https://reader035.fdocuments.in/reader035/viewer/2022062714/56649d5a5503460f94a3ab6b/html5/thumbnails/10.jpg)
SolutionSolution
Emulating some of the sub-conscious processes in a computer
Describe the world as a set of objects in a 3D space
![Page 11: Mobility Aid For The Blind By Amir Gonnen. The oldest aids Walking Cane Guide dog Problems: – Skills and Training phase – Range – Very little information.](https://reader035.fdocuments.in/reader035/viewer/2022062714/56649d5a5503460f94a3ab6b/html5/thumbnails/11.jpg)
Intro to the SimulationIntro to the Simulation
![Page 12: Mobility Aid For The Blind By Amir Gonnen. The oldest aids Walking Cane Guide dog Problems: – Skills and Training phase – Range – Very little information.](https://reader035.fdocuments.in/reader035/viewer/2022062714/56649d5a5503460f94a3ab6b/html5/thumbnails/12.jpg)
Do We Get A Better Do We Get A Better PerceptionPerception??
The Simulation:– A 3D room with several objects– Each object has its own sound
The sound is located at the object– Stereo sound the direction of the object– Volume How far is the object
The beat scanner– divides the field view into sectors– More accurate perceptual direction
![Page 13: Mobility Aid For The Blind By Amir Gonnen. The oldest aids Walking Cane Guide dog Problems: – Skills and Training phase – Range – Very little information.](https://reader035.fdocuments.in/reader035/viewer/2022062714/56649d5a5503460f94a3ab6b/html5/thumbnails/13.jpg)
More About the SimulationMore About the SimulationThe simulation solves several
problems:– How to separate sounds of different
objects, so that not all objects will be heard at once ?
– How to give a good indication of object’s type, direction and distance at the same time ?
Tradeoff between Resolution in Time and in Space.
![Page 14: Mobility Aid For The Blind By Amir Gonnen. The oldest aids Walking Cane Guide dog Problems: – Skills and Training phase – Range – Very little information.](https://reader035.fdocuments.in/reader035/viewer/2022062714/56649d5a5503460f94a3ab6b/html5/thumbnails/14.jpg)
ExperimentExperimentLet the subject close her eyes and
guess which object is visible, its direction and its distance.
Results:– Recognition was correct in 80%-90% of
the cases.– Notable improvement over time.
![Page 15: Mobility Aid For The Blind By Amir Gonnen. The oldest aids Walking Cane Guide dog Problems: – Skills and Training phase – Range – Very little information.](https://reader035.fdocuments.in/reader035/viewer/2022062714/56649d5a5503460f94a3ab6b/html5/thumbnails/15.jpg)
Experiment VideoExperiment Video
![Page 16: Mobility Aid For The Blind By Amir Gonnen. The oldest aids Walking Cane Guide dog Problems: – Skills and Training phase – Range – Very little information.](https://reader035.fdocuments.in/reader035/viewer/2022062714/56649d5a5503460f94a3ab6b/html5/thumbnails/16.jpg)
ConclusionConclusionStill a lot of work to be done
– Computer vision: how do we recognize objects on 3D space using a raw 2D signal ?
– How do we assign sounds to different objects ?
– How much information can be perceived using sound in a given time frame ?
Real progress could be achieved when we understand and able to emulate the cognitive processes of human vision