With just one quick glance at the scene, a sighted person can obtained enough spatial information to navigate through the scene. A wall on the left and the right, a ball is situated just right in the front. This is the spatial information that helps us navigate through any unfamiliar environment. As sighted person, we are taking this spatial information for granted This much-needed information is lost on the visually impaired and the blind Preliminary literature investigations have shown how spatial information of the facing scene can greatly benefit individuals with impairments. This paper investigated the possibility of extracting spatial information awareness of the facing scene given its disparity image. After the whole disparity image is analysed using gradient operator, it is broken into three equal sections, foreground, mid-ground and background Each section is analysed independently according to the needed spatial information. The relative size of the object occupied in the three sections contains needed information of the facing scene spatial information and also information regarding the type of the facing scene, close range, mid range or outer range. Experiments, which extracted spatial information awareness, were conducted on both a synthetic disparity image and real disparity images, yielding promising results.
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