A Study on the Straight-Line Drawing Tasks for the Non-sighted People

详细信息    查看全文

• 作者：Chih-Fu Wu ; Cherng-Yee Leung ; Yung-Hsiang Tu ; Kuang-Chieh Hsu ; Huei-Tang Lin
• 关键词：Industrial design ; Straight ; line drawing ; non ; sighted people ; ruler
• 刊名：Lecture Notes in Computer Science
• 出版年：2007
• 出版时间：2007
• 年：2007
• 卷：4556
• 期：1
• 页码：453-461
• 全文大小：227 KB
• 刊物类别：Computer Science
• 刊物主题：Artificial Intelligence and Robotics
  Computer Communication Networks
  Software Engineering
  Data Encryption
  Database Management
  Computation by Abstract Devices
  Algorithm Analysis and Problem Complexity
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1611-3349

文摘

A new ruler employs the finger touch to be the main pointing sensor with two locators at the two ends, and a unique pen in a smooth track to draw a line. The tasks of making straight line with two difference rulers (Ruler S: ruler used at school; Ruler C: new touch ruler) between non-sighted people (blindfolds and blinds) were observed: (1) free-line; (2) constrained-line; (3) extension-line; (4) closing-line; and (5) conjoining-line. Stages of those tasks were measured: searching, positioning, plotting, and checking, with reacting time and the deviation. The Paired t-test shown Ruler S had a larger reacting time for blinds at task (4), (5). MANOVA shown the blinds had larger reacting time at task (3), while (5) on deviation; Ruler C had a larger error at start- point of task (3) and a larger length error of task (3); while Ruler S had a larger error at end-point of task (4). Conclude that some revised design of the ruler really affected the performance of the straight-line tasks, while some did not.