东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2011, Vol. 32 ›› Issue (2): 223-226.DOI: -

• 论著 • 上一篇    下一篇

基于提升小波变换的图像可听化方法

田亚男;王旭;   

  1. 东北大学信息科学与工程学院;
  • 收稿日期:2013-06-19 修回日期:2013-06-19 发布日期:2013-04-04
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(60970157)

An image sonification method based on lifting wavelet transform

Tian, Ya-Nan (1); Wang, Xu (1)   

  1. (1) School of Information Science and Engineering, Northeastern University, Shenyang 110819, China
  • Received:2013-06-19 Revised:2013-06-19 Published:2013-04-04
  • Contact: Tian, Y.-N.
  • About author:-
  • Supported by:
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摘要： 传统的图像可听化方法多是在空间域选择映射特征,且声音编码维度比较单一,使得盲人学习和使用这种声音的难度较大.针对这一问题,提出了一种基于变换域的图像可听化方法,即对图像小波变换低频系数进行映射,使用频率和音长进行声音编码,将图像表示为电子音乐.实验表明,盲人对这种方法表示的图像具有较高的识别率,并且声音的听感优美,长时间收听不易疲劳.

关键词: 电子行走辅助, 视觉替代, 可听化, 听觉显示, 小波变换

Abstract: In the conventional image sonification method the mapping features selected in the space domain and the simple sound coding make the blind difficult to understand such a sound. A method based on the transform domain is therefore presented, where the low frequency coefficients of wavelet transform are mapped into the frequency and sound length so as to represent the image in electronic music. Experimental results showed that the blind is able to understand the images mapped into the auditory representation. Moreover, the sound is pleasing to ear and enjoyable.

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