scholarly journals Development of a White-Cane-Extension to Detect Automatic Doors

2021 ◽  
Vol 12 (1) ◽  
pp. 1-6
Author(s):  
Wataru Uemura ◽  
Takato Hayama
Keyword(s):  
Visually Impaired ◽  
Detection Method ◽  
Infrared Sensor ◽  
White Cane ◽  
Impaired Person ◽  
Visually Impaired Persons ◽  
The Doors

The majority visually impaired persons are using a white cane to move within their environment. They avoid to collision the obstacles by detecting objects when swinging white cane touches them. An automatic door is opened when it detects the person comes to it by the sensor, for example, infrared sensor. This kind of automatic doors are very useful because we need not touch the doors in order to open them. However, for majority visually impaired persons, it is difficult to detected automatic doors because they detect the object by touching. In this paper, we propose the detection method which tells the existence of automatic doors to the visually impaired person. The device is consisted of an infrared sensor and a vibration motor. The infrared sensor is put on the tip of the white cane and the vibration motor is put on close to the hand. And when it detects the infrared signal, the vibration motor runs. Then the visually impaired persons can through the automatic door in safety without any cares

Approaches to Increasing Assertive Behavior and Communication Skills in Blind and Visually Impaired Persons

1986 ◽  
Vol 80 (6) ◽  
pp. 794-798
Author(s):  
Rona L. Harrell ◽  
Felice A. Strauss
Keyword(s):  
Social Interactions ◽  
Learned Helplessness ◽  
Visually Impaired ◽  
Blind And Visually Impaired ◽  
Assertive Behavior ◽  
Structured Intervention ◽  
Impaired Person ◽  
Assertion Training ◽  
Partially Sighted ◽  
Visually Impaired Persons

Many visually impaired individuals are found to be too passive or too aggressive in their social interactions. Lack of assertive behavior is related to the concept of learned helplessness. Components of assertive behavior are described with suggestions for enabling the visually impaired person to develop these skills. The underlying concepts of assertion training are explained along with specific techniques to be utilized in the school or rehabilitative setting. With a structured intervention resulting in improved assertiveness skills, blind or partially sighted individuals can increase their effectiveness in communicating with others and can feel more in control of their lives.

Game Aspects in Collaborative Navigation of Blind Travelers

2016 ◽  
pp. 497-523
Author(s):  
Jan Balata ◽  
Zdenek Mikovec ◽  
Pavel Slavik ◽  
Miroslav Macik
Keyword(s):  
Quality Of Life ◽  
User Interface ◽  
Navigation System ◽  
Visually Impaired ◽  
Self Confidence ◽  
Game Mechanics ◽  
Impaired Person ◽  
Game Elements ◽  
Visually Impaired Persons

This chapter shows how elements of gamification, i.e. game thinking and game mechanics, can be integrated into a collaborative navigation system for visually impaired persons in order encourage them to travel independently and thus improve their quality of life and self-confidence. The system supports independent navigation in unknown places by mediating help from another visually impaired person, who is familiar with the particular place. Our system utilizes a thermal user interface to introduce an additional communication channel and thus to increase the usability of the system. The system has been successfully enhanced by game elements and illustrates the potential of introducing game elements into these systems.

Assistive cane for visually impaired persons for uneven surface detection with orientation restraint sensing

Sensor Review ◽  
2020 ◽  
Vol 40 (6) ◽  
pp. 687-698
Author(s):  
Bhupendra Singh ◽  
Monit Kapoor
Keyword(s):  
Visually Impaired ◽  
Design Methodology ◽  
The State ◽  
Content Type ◽  
Additional Equipment ◽  
Vibration Pattern ◽  
White Cane ◽  
The Many ◽  
Visually Impaired Persons ◽  
Additional Device

Purpose The reduced ability of eyes to see clearly even with the use of glasses is known as the state of visual impairment. Among the many challenges faced, outdoor travel is one of them requiring to travel through surfaces, which has potholes and bumps. Design/methodology/approach The depth of the pothole and height of the bump is also conveyed to the user through different vibration pattern of various intensity. With available electronic travel aids, the visually impaired persons are still more inclined to rely on their white cane than carrying additional equipment for obstacle avoidance. In the system, all the components can be attached to the white cane, requiring no additional device to carry. Findings Upon experimentation with different obstacle types, the system obtained a 24.88% higher score in comparison to normal walking cane. A comparison with the state of the art available systems is also provided. Originality/value Moreover, the accuracy of the assistive cane can be heavily degraded if the cane is not properly held by the user. To restrict the user to hold the cane in only required orientation an alignment sensing switch is also proposed, which is missing in the current available literature.

Basic Study of the Influence of the Manner of Grasping, Number of Contacts, and Auditory Information on Recognition of Hardness of Objects by Visually Impaired Persons Using White Canes

2018 ◽  
Vol 22 (1) ◽  
pp. 121-132 ◽  
Author(s):  
Kiyohiko Nunokawa ◽  
Manabu Chikai ◽  
Kouki Doi ◽  
Shuichi Ino ◽  
◽  
...  
Keyword(s):  
Visually Impaired ◽  
Environmental Information ◽  
Basic Knowledge ◽  
Auditory Information ◽  
Basic Study ◽  
Rubber Sheet ◽  
Operation Conditions ◽  
White Cane ◽  
Finger Tip ◽  
Visually Impaired Persons

White canes are widely used as tools to assist visually impaired persons to walk. The white cane is used to acquire environmental information as a clue for walking. It is important to know what information can be acquired by using the cane, how accurate the acquired information is, and how we can improve the information and accuracy. Clarification of these questions would contribute to development of white canes that enable better acquisition of environmental information. It would also assist in the design of buildings with appropriate guidance for visually impaired persons on the basis of information acquired through the canes. In this study, in order to acquire basic knowledge about hardness recognition, experiments were performed using four conditions: 1) Tapping or pushing the object with the index finger tip and white cane tip, 2) use or non-use of the auditory sense to study its usefulness, 3) different ways of grasping the cane, and 4) different number of checks. Nine visually impaired persons who usually walked alone using white canes participated in the experiments. They estimated the hardness of a rubber sheet under various combinations of the operation conditions and hearing conditions. Results showed that the number of checks had little effect on the user’s estimation of the hardness of the sheet. For the recognition of the contact target hardness using the white cane, it was effective to simultaneously use information from different modalities, namely tactile and auditory information. We also observed that, when pushing the cane with the index fingers, the users could feel the objects as if they had directly touched them with the fingers.

scholarly journals Mental health how (re)constitutive tool in ways of living of visually impaired persons

10.3823/2596 ◽  
2019 ◽  
Vol 12 ◽  
Author(s):  
Érico Gurgel Amorim ◽  
Jacileide Guimarães ◽  
Olivia Morais de Medeiros Neta ◽  
Ingrid Gurgel Amorim ◽  
Rafael Otávio Bezerra de Morais
Keyword(s):  
Mental Health ◽  
Visual Impairment ◽  
Visually Impaired ◽  
University Hospital ◽  
Semistructured Interview ◽  
The Face ◽  
Impaired Person ◽  
The One ◽  
Visually Impaired Persons ◽  
The City

Objective: to analyze mental health in the face of visual impairment, identifying the stages of psychological distress in the encounter with the not seeing. Method: This is an exploratory study with a qualitative approach. Fifteen adults with visual impairment attended at a specialized ophthalmology ambulatory in a university hospital in the city of Natal, Rio Grande do Norte, Brazil were studied, from June to August 2015, through a semistructured interview. The speeches were analyzed based on the theory of mourning. Results: the results showed that the mental health of the visually impaired person is structured through a normative apparatus constituted of individual and social attributes dynamically constructed. These attributes are related to the constitution of stages of mourning, characterized by shock, denial, bargaining, depression, and acceptance. The mental health of the visually impaired person contemplates the phases of normal mourning, established before the condition of visual loss, as structuring mode in a process of personal reconstruction, reflected in the ways of walking the life, proper from each one. Conclusion: With this study, it was possible to understand the ways of constitution and reconstitution of people in dealing with a new condition, the one of visual impairment, providing caregivers, family, and society with an ethical spirit and solidarity, more compliant and humane in the to deal with people with disabilities.

scholarly journals RFID AND VIRTUAL REALITY TEST SETUP FOR VISUALLY IMPAIRED ASSISTIVE TECHNOLOGY

2021 ◽  
Vol 21 (1) ◽  
pp. 3-10
Author(s):  
Ingmar BEŠIĆ ◽  
◽  
Zikrija AVDAGIĆ AVDAGIĆ ◽  
Kerim HODŽIĆ
Keyword(s):  
Virtual Reality ◽  
Assistive Technology ◽  
Visual Impairment ◽  
Visual Information ◽  
Visually Impaired ◽  
Object Localization ◽  
Color Mapping ◽  
Test Setup ◽  
Impaired Person ◽  
Visually Impaired Persons

Visual impairments often pose serious restrictions on a visually impaired person and there is a considerable number of persons, especially among aging population, which depend on assistive technology to sustain their quality of life. Development and testing of assistive technology for visually impaired requires gathering information and conducting studies on both healthy and visually impaired individuals in a controlled environment. We propose test setup for visually impaired persons by creating RFID based assistive environment – Visual Impairment Friendly RFID Room. The test setup can be used to evaluate RFID object localization and its use by visually impaired persons. To certain extent every impairment has individual characteristics as different individuals may better respond to different subsets of visual information. We use virtual reality prototype to both simulate visual impairment and map full visual information to the subset that visually impaired person can perceive. Time-domain color mapping real-time image processing is used to evaluate the virtual reality prototype targeting color vision deficiency.

Color Contrast as on Aid for Visually Impaired Persons

1977 ◽  
Vol 71 (6) ◽  
pp. 252-257
Author(s):  
Vincent J. Sicurella
Keyword(s):  
Special Education ◽  
Visually Impaired ◽  
Color Contrast ◽  
Graduate Degree ◽  
Impaired Person ◽  
Visually Impaired Persons ◽  
Living Area

An architect who also has a graduate degree in special education, the author uses both these areas and his own experience as a visually impaired person, to show how color contrast can improve the effectiveness of limited vision in the home. Ten photographs illustrate practical suggestions for using color contrast in the kitchen, dining area, living area, bathroom, and office desk. All suggested remedies are inexpensive and simple enough for the visually impaired person to carry out himself.

Examination of a Guidance Robot for Visually Impaired People

2017 ◽  
Vol 29 (4) ◽  
pp. 720-727 ◽  
Author(s):  
Kazuteru Tobita ◽  
◽  
Katsuyuki Sagayama ◽  
Hironori Ogawa
Keyword(s):  
Visually Impaired ◽  
Rank Test ◽  
Rehabilitation Hospital ◽  
Visually Impaired People ◽  
Signed Rank ◽  
Impaired People ◽  
Signed Rank Test ◽  
White Cane ◽  
Visually Impaired Persons ◽  
Better Than

We are developing the robot in order to guide visually impaired persons in large hospitals. This paper describes the structure of the robot and the results of a demonstration examination in Kanagawa Rehabilitation Hospital, Japan. The robot navigates to the destination while steering, depending on the force with which the user pushes on the robot. The success rate for reaching a destination with the robot was higher than with a white cane in the testing at Kanagawa Rehabilitation Hospital. We evaluated the traveling time and the participant questionnaire as an endpoint by Wilcoxon signed-rank test. Though there is no advantage in traveling time between use of the white cane and the robot, according to the scores of the participants questionnaire, it was shown that traveling with the robot was better than traveling with the white cane for the participants.

Promoting Healthful Exercise for Visually Impaired Persons with Diabetes

1993 ◽  
Vol 87 (9) ◽  
pp. 361-364 ◽  
Author(s):  
D.M. Weitzman
Keyword(s):  
Visually Impaired ◽  
Current View ◽  
Impaired Person ◽  
Visually Impaired Persons

This article reports the current view that appropriate exercise is essential for many visually impaired persons with diabetes. It lists precautions for the visually impaired person with diabetes and specifies who should not exercise, explains “diabetes-specific” benefits of exercise, states the format of a safe workout, and includes an example of a successful exerciser.

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