Topic
Switch access scanning
About: Switch access scanning is a research topic. Over the lifetime, 2 publications have been published within this topic receiving 10 citations.
Papers
29 Jun 2011
TL;DR: Through the analysis of navigation behavior of eight able-bodied users, a new scanning system called hold-and-release scanning was developed and was found to be significantly more efficient than existing scanning systems.
Abstract: Many users with severe motor impairments, such as quadriplegics, interact with computers using an indirect selection technique called switch access scanning. Switch scanning allows for iteratively selecting an input from a set of input options using a single switch input and which replaces the use of a keyboard or a mouse, which they may be unable to use. Navigating an avatar in a 3D virtual world using existing switch access scanning systems is slow and erroneous because these interfaces are non-linear and requires players to provide continuous (holding a key) and mixed inputs (holding two or more keys). Through the analysis of navigation behavior of eight able-bodied users, a new scanning system called hold-and-release was developed. Using simulation hold-and-release scanning was found to be significantly more efficient than existing scanning systems. Multistep selection was found to be most efficient for mixing inputs, but expanding the selection set has no approximation errors.
16 citations
1 Aug 2014
TL;DR: This paper has described an initiative called SABARI, where technology has been used to replace the partner, where the computer acts as a partner, highlighting the item one by one and when the particular item is highlighted, the individual presses the switch or moves a body part to activate the switch.
Abstract: Individuals with multiple disabilities have difficulty in communicating with the external world. A predominant method of communication is to have a chart of pictures or letters/words and make the individual point to the particular picture or letter. For individuals with limited mobility, a partner is usually employed, who points and reads the item one by one in the chart. When the particular item is pointed, the individual indicates an yes choice through some means such as eye-blinking. In this paper, we have described an initiative called SABARI, where technology has been used to replace the partner. In other words, the computer acts as a partner, highlighting the item one by one and when the particular item is highlighted, the individual presses the switch or moves a body part to activate the switch. We have developed several software applications based on this methodology and some of these are being used by Vidyasagar (Formerly called Spastic Society of India).
2 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2014 | 1 |
| 2011 | 1 |