擴視機又称电子助视器(Video Magnifier),是一种帮助阅读平面材料的设备,该设备通过摄像头获取影像并显示在一个较大的屏幕上。这种设备可以帮助无法使用放大镜弱视患者阅读。

特性

专业电子助视器可提供数倍至数十倍的自动光学变焦,以及亮度、色彩、对比度等调整,可以适应不同大小的纸张和阅读需要。其连接的输出设备也可自行调整,如使用较大的LCD显示器或较小的平板电脑等。

电子助视器的缺点是体积大,便携性差,通常需要连接电源使用,并且价格高昂。

在智能移动设备(智能手机、平板电脑等)普及后,一些软件也提供了电子助视器的功能。[1][2]

參考文獻

  1. ^ Wei, Jiawei. 兄弟合力替視障者開啟新「視」界 [Brothers join forces to open new "vision" for the visually impaired]. 輔大生命力新聞 (Fu Jen Catholic University Life-Force News) (Taiwan: Public Television Service Foundation). 5 April 2010 [12 June 2014]. (原始内容存档于2023-11-29) (中文).  See also the download page for their software页面存档备份,存于互联网档案馆) (in Chinese).
  2. ^ Hughes, Gregory; Robinson, Peter. Photonote: The making of a classroom adaptation system. Cambridge Workshop on Universal Access and Assistive Technology. Cambridge: 197–206. April 2008. ISBN 978-1-84800-210-4.  See also Hughes, Gregory; Robinson, Peter. Photonote evaluation: aiding students with disabilities in a lecture environment (PDF). ACM Conference on Computers and Accessibility. Tempe AZ. October 2007.  Also Hughes, Gregory; Robinson, Peter. Lecture adaptation for students with visual disabilities using high-resolution photography (PDF). ACM Conference on Computers and Accessibility. Portland, Oregon. October 2006.