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An Image Processing Approach for Blind Mobility Facilitated Through Visual Intracortical Stimulation
Author(s) -
Mohammadi Hossein Mahvash,
GhafarZadeh Ebrahim,
Sawan Mohamad
Publication year - 2012
Publication title -
artificial organs
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.684
H-Index - 76
eISSN - 1525-1594
pISSN - 0160-564X
DOI - 10.1111/j.1525-1594.2011.01421.x
Subject(s) - computer vision , computer science , artificial intelligence , object (grammar) , perspective (graphical) , image processing , visual prosthesis , image (mathematics) , stimulation , psychology , neuroscience
This article presents an image processing approach dedicated for a blind mobility aid facilitated through visual intracortical electrical stimulation. The method examines a display framework based on the distances related to a scene. The distances of objects to the walker are measured using a size perspective method which uses only one camera without any occlusion effect. The method extracts the information of the closest object to the camera and transfers a sense of distance to a blind walker. The proposed image processing method can estimate the distances of objects within 7.5 m of the walker, and alert the presence of the closest object to the person. This new method offers the advantages of information reduction and scene understanding suitable for visual prosthesis.