A Mobile Navigation System Based on Visual Cues for Pedestrians with Cognitive Disabilities

2015 ◽  
pp. 173-190 ◽  
Author(s):  
Javier Gómez ◽  
Timo Ojala
Keyword(s):  
Field Study ◽  
Navigation System ◽  
Visual Cues ◽  
Cognitive Disabilities ◽  
Urban Setting ◽  
Decision Points ◽  
Shortest Route ◽  
Mobile Navigation ◽  
Current Location ◽  
Intermediate Targets

The authors present a prototype of a mobile navigation system designed for pedestrians with cognitive disabilities. The system first determines the shortest route from current location to a desired predefined destination from a set of candidate routes obtained from Bing Maps and Google Maps. Then the system extracts intermediate targets (decision points) from the route according to street crossings. The guidance to the next intermediate target is provided in the form of atomic textual and auditory instructions, together with visual cues extracted automatically from Google Street View. The experimental evaluation of the application is carried out via a field study with two subjects with Down syndrome in authentic urban setting. The chapter concludes with a reflection on the design of the system and the findings of the field study.

Men, bodily change and urethritis: a qualitative study

Sexual Health ◽  
2005 ◽  
Vol 2 (1) ◽  
pp. 25 ◽  
Author(s):  
M. K. Pitts ◽  
A. M. A Smith ◽  
A. Mischewski ◽  
C. Fairley
Keyword(s):  
Qualitative Study ◽  
Sexual Health ◽  
Visual Cues ◽  
Health Centre ◽  
Urban Setting ◽  
Ability To Act ◽  
Sexually Transmissible Infection ◽  
Transmissible Infection ◽  
Visual Changes ◽  
The Way

Objectives: To describe how men narrate the process of bodily change as a trigger to presentation for a suspected sexually transmissible infection. Methods: The study was qualitative with 18 men presenting at a specialist sexual health centre in an urban setting. Results: All men gave narratives that included accounts of bodily changes prior to presentation. The nature, severity and persistence of those changes were unrelated to subsequent diagnosis. Men responded particularly to visual changes as cues to action. Conclusions: The men exhibited limited skills in understanding the significance and the specifics of bodily change as they may relate to a sexually transmissible infection. While these men identified a broad range of changes as potentially indicative of a sexually transmissible infection, their ability to act on visceral rather than visual cues appears constrained in that they were less able to respond to the feel of their body than the way that it looked.

scholarly journals Impact of Used Communication Technology on the Navigation System for Hybrid Environment

2012 ◽  
Vol 2012 ◽  
pp. 1-10
Author(s):  
Juraj Machaj ◽  
Peter Brida ◽  
Michal Mlynka
Keyword(s):  
Navigation System ◽  
Indoor Positioning ◽  
Point Of View ◽  
Positioning System ◽  
Real Time System ◽  
Communication Platform ◽  
Mobile Navigation ◽  
Navigation Service ◽  
The University ◽  
Indoor Positioning System

This paper deals with navigation of mobile device in outdoor and indoor environment by only navigation system or application. In the paper, the navigation system is proposed in the light of seamless navigation service. Main parts of the system from positioning point of view are based on GPS and WifiLOC system. WifiLOC is an indoor positioning system based on Wi-Fi technology. The proposal of the system will be described in detail. The system is implemented at the University of Zilina as a pilot, noncommercial project; therefore it is called University Mobile Navigation System (UMNS). The navigation system can be characterized as real-time system, that is, the system operations cannot be significantly delayed. Since delay of the system depends significantly on communication platform used for map information downloading or communication with the localization server. We decided to investigate an impact of the used communication platform on the time needs for some of the functions implemented in navigation system. Measurements were performed in the real-world application. Next experiment is focused on testing of the accuracy of used indoor positioning system. Outdoor positioning accuracy is not tested because GPS is utilized in outdoor, and this system was already exhaustively investigated.

Field Comparison of Driving Performance Using a Portable Navigation System

2009 ◽  
Vol 63 (1) ◽  
pp. 39-50 ◽  
Author(s):  
Wen-Chen Lee ◽  
Mi-Chia Ma ◽  
Bor-Wen Cheng
Keyword(s):  
Standard Deviation ◽  
Field Study ◽  
Recent Work ◽  
Navigation System ◽  
Smart Phone ◽  
Driving Performance ◽  
Factorial Experiment ◽  
System A ◽  
Portable Navigation ◽  
Voice Instruction

Recent work has revealed that increasing numbers of drivers now receive driving instructions using a portable navigation system. A 2×2×2 (position×display decrease mode×voice) factorial experiment was executed to compare driving performance when using a portable navigation system (PNS). Thirty-two subjects were paid to participate in this field study, and a smart phone was adopted as the portable navigation device. The results indicated that drivers using the PNS under the conditions up position and with voice instruction performed better in terms of trip duration, mean speed, and the standard deviation of speed.

Visual Orientation and Navigation

2014 ◽  
Author(s):  
Thomas W. Cronin ◽  
Sönke Johnsen ◽  
N. Justin Marshall ◽  
Eric J. Warrant
Keyword(s):  
Magnetic Fields ◽  
Visual Cues ◽  
Sensory Information ◽  
Visual Orientation ◽  
Animal Life ◽  
Auditory Cues ◽  
Current Location ◽  
Universal Feature ◽  
Invertebrate Animals ◽  
Chemical Stimuli

This chapter explains how orientation refers to an animal's ability to move or posture itself in a desired direction relative to its environment. The ability to orient is virtually a universal feature of animal life. Many animals go a step further and navigate through the environment, finding their way from their current location to a specific destination that might be meters or kilometers away. Orientation mechanisms, and even more those that underlie navigation, are often complex and multimodal, involving not only visual cues but also sensory information about gravity, magnetic fields, chemical stimuli, mechanical and auditory cues, and even internal stimuli. As for so many other aspects of visual ecology, many of the critical observations have involved invertebrate animals, but work on vertebrates is very active as well.

Sign in / Sign up

Export Citation Format

Share Document