Research Online

Logo

Goldsmiths - University of London

An Empirical Evaluation of a Screen Navigation and Graphics Manipulation Technique for Blind and Visually impaired Individuals

Ohene-Djan, James and Fernando, S. 2018. An Empirical Evaluation of a Screen Navigation and Graphics Manipulation Technique for Blind and Visually impaired Individuals. TACCESS ACM Transactions on Accessible Computing, [Article] (Forthcoming)

[img]
Preview
Text
ComputerAidedDrawing&NavigationTechniqueMain.pdf - Accepted Version
Available under License Creative Commons Attribution Non-commercial.

Download (9MB) | Preview

Abstract or Description

The representation of pictorial data by partially sighted and BVI (Blind and Visually Impaired) people has gathered momentum with research and development, however little research has focussed on the use a of screen layout to provide BVI users with spatial orientation to create and reuse graphics. This paper contributes an approach to navigating on the screen, manipulate computer graphics and user-defined images. The formal specification described in this paper enables features such as zooming, grouping and drawing by calling primitive and user-defined shapes. It enables blind people to engage and experience drawing and art production on their own. It is easy to learn, efficient and takes less time to complete. An empirical evaluation was conducted to validate the suitability of SETUP09 technique and to evaluate the accuracy, efficiency of the navigation and drawing techniques proposed. The experiment results confirmed high accuracy and competency with both sighted and BVI users. The BVI participants managed to successfully complete the drawing tasks with an average of 2.16 (m:s) without the help of a support worker.

Item Type:

Article

Keywords:

Blind Drawing, Diagram Drawing for Blind and Visually Impaired Users, Screen Navigation for Blind and Visually Impaired People, Formal specification of a Drawing tool, Image Perception, Sensory Substitution

Departments, Centres and Research Units:

Computing

Dates:

DateEvent
1 June 2018Accepted

Item ID:

24180

Date Deposited:

21 Sep 2018 14:07

Last Modified:

21 Sep 2018 14:07

Peer Reviewed:

Yes, this version has been peer-reviewed.

URI:

http://research.gold.ac.uk/id/eprint/24180

View statistics for this item...

Edit Record Edit Record (login required)