The existing vision substitution methods are only used in special environments because their mapping features are obtained by object recognition.Aiming at this problem

a vision substitution method based on visual attention models is proposed.Firstly

regions of interest are extracted according to human visual properties.And on the basis of the auditory display theory

PSC mapping method is presented that the position

size and color of regions of interest are respectively mapped into note loudness

duration and pitch.Results show that this method corresponds with the cognitive processes of human vision.It is good at helping the blind to obtain the important information and reducing the difficulty of training and learning.Moreover

the mapped electronic music is pleasing to ear and enjoyable.