Wearable Extraction System of Region Suited to Safe Ambulation for Low Vision

The objects have potentially dangerousness for pedestrians, such as illegally-parked bicycles, power poles, stopping vehicles, etc., could be found in a street. Those objects are threats to the safety of elderly and disabled people with impaired vision, because it is difficult for them to find those objects. In this paper, to enhance the elderly and disabled people's mobility, we propose the method to estimate the region which is feasible for people's mobility in life space. In this method, the images are obtained from a head-mounted wearable sensor device, and the suited region for walking is estimated using a weak assumption with respect to an installation requirement of the device and the geometric relationship between the device and the target region. The performance and the validity are shown by applying the proposed method to a number of scenes in life space.