擴視機又稱電子助視器(Video Magnifier),是一種幫助閱讀平面材料的設備,該設備通過攝像頭獲取影像並顯示在一個較大的屏幕上。這種設備可以幫助無法使用放大鏡弱視患者閱讀。

特性

專業電子助視器可提供數倍至數十倍的自動光學變焦,以及亮度、色彩、對比度等調整,可以適應不同大小的紙張和閱讀需要。其連接的輸出設備也可自行調整,如使用較大的LCD顯示器或較小的平板電腦等。

電子助視器的缺點是體積大,便攜性差,通常需要連接電源使用,並且價格高昂。

在智能行動裝置(智慧型手機、平板電腦等)普及後,一些軟體也提供了電子助視器的功能。[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]. (原始內容存檔於2023-11-29) (中文).  See also the download page for their software頁面存檔備份,存於網際網路檔案館) (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.