Research on Auditory Display Technology Based on Visual Information

A new recognizing obstacle method based on the visual information with the different voice was proposed in this paper, which overcame the flaw of the former ETA system to be unable to distinguish the outside obstacle concrete information. This method extraction goal object´s color and the shape characteristic, with the established database retrieval math, distinguishes the goal object and then sends out the corresponding pronunciation. After a period of time´s training, the blind person can skilled listen to the sound to know the obstacle information.