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Population of blind people in the world, with low vision, visually impaired per million

Population of blind people in the world, with low vision, visually impaired per million

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Article
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Comprehending the environment accurately and proficiently is one of the fundamental undertakings for the visually impaired. Many electronic travel aid devices are utilizing stereo vision techniques. However, there is no existing technology that helps to fulfill the requirements of the visually impaired and be economical at the same time. All the cu...

Citations

... The usability was also assessed involving VI users. Moreover, Bansal et al. (Bansal et al., 2020) proposed to combine stereo vision with ultrasonic sensors to detect the obstacles in a real-time surrounding. The proposed system uses stereo vision to recognize and track objects located at a farther distance, while ultrasonic sensors were used to detect objects located at shorter distances. ...
... (Caraiman et al., 2019) 2019 Stereo vision for the scene reconstruction and segmentation in outdoor environments. (Bansal et al., 2020) 2020 Obstacle detection using stereo vision with ultrasonic sensors in a real-time surrounding. (Tissot, 2003) 2003 PDA-based navigation using Dijkstra's algorithm, taking into consideration the user's preferences. ...
Article
Independent indoor navigation for the Visually Impaired (VI) is extremely challenging, especially in unfamiliar environments. This paper presents the development process for a navigator system for the VI that plans an optimized path to safely lead them to their desired destination. The first contribution of this research paper is proposing a path planning algorithm, based on the well-known Ant Colony Optimization (ACO) technique. The algorithm computes an optimized route considering the user's preferences while avoiding collisions with fixed obstacles. The algorithm's output consists of the moving directions for VI users, which are delivered to them via audio commands to direct their movements. A path following algorithm was also implemented so that the calculated path is dynamically updated whenever the VI diverts from the initially pre-defined path. This functionality utilizes a step and deviation detector that counts and monitors the user's steps, matching them with the expected path. Finally, a thorough usability evaluation involving both visually impaired and unimpaired users was conducted; the results indicate that the system ultimately achieves its intended goals in terms of effectiveness, efficiency and most importantly, user satisfaction. Ó 2022 The Author(s). Published by Elsevier B.V. on behalf of King Saud University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Conference Paper
Full-text available
In the world there are around 300 million people [1],who have problems with vision, among those 40 million are completely blind and around 260 million have poor vision due to some cases being partial or complete visual disability. and among them around 95 percent of these stay in developed countries, where they find it very difficult to perform basic day to day activities like commuting. They are unable to read traffic warning signs and regulatory signs, also they can’t read the information signs to know their exact position and they often rely on other pedestrians to guide them to their destination.