Customizable game interface for disabled people

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Révision de 13 janvier 2020 à 18:28 par Privarar (discussion | contributions) (Results)

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Project schedule.png
Titre du projet Customizable game interface for disabled people
Cadre Projets de spécialité
Page principale Projets de spécialité image

Encadrants Céline Coutrix

Students


Context

Introduction

Looking at the current ways to interact with machines and especially with video games as of today, the industry seems to struggle to propose new tools for the disabled people on a high scale.

Indeed it can be a challenging task considering the difference between each people’s disability, making it hard to propose one single solution.

Throughout this project we wanted to offer a solution for people whose movements are limited to their head. Hence the focus on facial recognition and being able to interact with the game through facial gestures, in our case the eyes and the mouth.


Addressed problem

Objective

The main goal of this study is to test this way of interacting with video games and see its positive impact while comparing it to the user’s usual way of doing the same action.

For this purpose we’ll ask the user to play a single 2D platform game requiring 3 different controls (go left, go right, jumping), enabling us to test different combinations, even doing several actions in one facial gestures.


Approach

Implementation for the prototype

Facial Recognition

First, we use … to recognise the face and build the model predicting points around the eyes and the mouth. We’ll then use them to measure the distance between two points and defining a threshold at which something should be activated (opening mouth/closing eyes up to a certain point).

Key Binding

Then we have … to link what was activated to a key on the keyboard (example: right eye closing for right arrow, left eye for left arrow etc.).

Graphical User Interface

Once this is done we also have … to build the GUI which would be the way to tune the experiment for the user. This way the user could choose which facial gesture to link to which key, which threshold to set for it and all of that to make this tool usable by the highest number of users possible (knowing that each of them can have different preferences depending on their disability).

Planning of experiment

For this experiment, we will conduct the test with two different video games. The first one being a platforming game serving more as a playground to test different combinations of facial gestures.

For this purpose we set a default configuration for the facial gestures :

  • right eye for right arrow
  • left eye for left arrow
  • opening mouth for jumping
  • both eyes for going right and jumping

The idea is to let the user get used to the controls for a few minutes and possibly ask for another configuration depending on his preferences.

Next step will be to make the user play a second video requiring timing. The game is … and requires only two controls: one for accelerating, another one for breaking. Our guess is that left eye for breaking and right eye for accelerating is a good configuration to first try it out, then again, the user could change it depending on his preferences.

We let the user try to pass the first level for a few minutes and measure the results.

Setup

For the setup of this experiment, we only need a room with enough light to get detected well by the facial recognition program. In our case it changed depending on the person’s disponibilities, thus it went from the library’s entrance to an amphi at Ensimag.

We use the computer’s webcam to do it so we only needed a place to seat together and set the camera such that the user can both see the screen and the camera can see his face.

We then ask the participant to fill up a survey asking both for his feelings about the experiment overall and what he would add to improve it. Considering it is for playing video games, the fact that it isn’t too cumbersome for the user to really get into the game is particularly important, thus asking about the entertaining aspect of the experiment is important in our case.

Results

time

Conclusion & Discussion