A blind guidance system based on ICA edge detection and MIDI music display

The conventional blind guidance systems have some problems such as massive mapping data, low mapping efficiency and simple sound coding. These make the blind difficult to use the system. To solve these problems, a system is presented based on ICA edge detection and MIDI music display. In this system image edges that accord with visual characteristics are mapped into MIDI music by ICA edge basis functions' reconstruction. Experimental results showed that the system has higher recognition rates for the blind's recognizing the image contents.