scholarly journals Personal Guidance System for People with Visual Impairment: A Comparison of Spatial Displays for Route Guidance

2005 ◽  
Vol 99 (4) ◽  
pp. 219-232 ◽  
Author(s):  
Jack M. Loomis ◽  
James R. Marston ◽  
Reginald G. Golledge ◽  
Roberta L. Klatzky

This article reports on a study of route guidance using a navigation system that receives location information from a Global Positioning System receiver. Fifteen visually impaired participants traveled along 50-meter (about 164-foot) paths in each of five conditions that were defined by the type of display interface used. One of the virtual displays—virtual speech—led to the shortest travel times and the highest subjective ratings, despite concerns about the use of headphones.

2006 ◽  
Vol 59 (3) ◽  
pp. 497-504 ◽  
Author(s):  
Z. Hunaiti ◽  
V. Garaj ◽  
W. Balachandran

This paper presents research and development work on a novel system with a view of developing a navigation system for the guidance of visually impaired pedestrians. The prime aim of the new developed system is to enhance the mobility of visually impaired pedestrians using remote guidance provided by sighted person. However, the system can be used in many other applications. The system implementation is based on the integration of the Global Positioning System (GPS), Geographical Information System (GIS) database and a remote vision facility over the third generation (3G) of mobile networks, providing a technological platform enabling visually impaired pedestrians to be guided remotely by a sighted guide.


Author(s):  
MANDAR GAUDE ◽  
VIRESH CANDOLKAR

The objective of this study is the development of navigation system which supports activities of the visually impaired without help of others. This system navigates a visually impaired person by using information about GPS (Global Positioning system). In this navigation system, after setting the destination, position of user is obtained by GPS and a visually impaired user is guided along the predefined route.


Author(s):  
Prabha Ramasamy ◽  
Mohan Kabadi

Navigational service is one of the most essential dependency towards any transport system and at present, there are various revolutionary approaches that has contributed towards its improvement. This paper has reviewed the global positioning system (GPS) and computer vision based navigational system and found that there is a large gap between the actual demand of navigation and what currently exists. Therefore, the proposed study discusses about a novel framework of an autonomous navigation system that uses GPS as well as computer vision considering the case study of futuristic road traffic system. An analytical model is built up where the geo-referenced data from GPS is integrated with the signals captured from the visual sensors are considered to implement this concept. The simulated outcome of the study shows that proposed study offers enhanced accuracy as well as faster processing in contrast to existing approaches.


1977 ◽  
Vol 30 (1) ◽  
pp. 35-47 ◽  
Author(s):  
Edward M. Lassiter ◽  
Bradford Parkinson

The NAVSTAR Global Positioning System (GPS) is a satellite-based navigation system that will provide extremely accurate three-dimensional position fixes and timing information to properly equipped users anywhere on or near the Earth. The system will be available continuously regardless of weather conditions and will find extensive utilization in improved weapons delivery accuracies, range instrumentation, &c. Furthermore it will provide an ultimate saving in the number and cost of navigation and position-fixing systems currently employed or projected. It is a Joint Service programme managed by the U.S.A.F. with deputies from the Navy, Army and Marines and the Defense Mapping Agency. The system concept evolved from U.S.A.F. and Navy studies initiated in the mid-1960s. Current programme plans call for the deployment of six satellites in 1977 to permit demonstration and evaluation tests over the continental United States. The system will then be expanded through the deployment of additional satellites into an operational 24-satellite system.


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