NAVIG: augmented reality guidance system for the visually impaired

Katz, Brian F. G.; Kammoun, Slim; Parseihian, Gaëtan; Gutierrez, Olivier; Brilhault, Adrien; Auvray, Malika; Truillet, Philippe; Denis, Michel; Thorpe, Simon J.; Jouffrais, Christophe

doi:10.1007/s10055-012-0213-6

Cited by 123 publications

(56 citation statements)

References 37 publications

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“…The integration of an RI device into an augmented blindman's cane or head-mounted systems could aid visually impaired people in navigation by identifying and describing surroundings beyond the limited sensing range of a physical cane [116,117,118,119]. For instance, Gassert et al [117] described the augmentation of a white cane with a ToF sensor.…”

Section: Aids For Handicapped Peoplementioning

confidence: 99%

Real-Time Range Imaging in Health Care: A Survey

Bauer

Seitel

Hofmann³

et al. 2013

Lecture Notes in Computer Science

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Abstract. The recent availability of dynamic, dense, and low-cost range imaging has gained widespread interest in health care. It opens up new opportunities and has an increasing impact on both research and commercial activities. This chapter presents a state-of-the-art survey on the integration of modern range imaging sensors into medical applications. The scope is to identify promising applications and methods, and to provide an overview of recent developments in this rapidly evolving domain. The survey covers a broad range of topics, including guidance in computer-assisted interventions, operation room monitoring and workflow analysis, touch-less interaction and on-patient visualization, as well as prevention and support in elderly care and rehabilitation. We put emphasis on dynamic and interactive tasks where real-time and dense 3-D imaging forms the key aspect. While considering different range imaging modalities that fulfill these requirements, we particularly investigate the impact of Time-of-Flight imaging in this domain. Eventually, we discuss practical demands and limitations, and open research issues and challenges that are of fundamental importance for the progression of the field.

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Section: Aids For Handicapped Peoplementioning

confidence: 99%

Real-Time Range Imaging in Health Care: A Survey

Bauer

Seitel

Hofmann³

et al. 2013

Lecture Notes in Computer Science

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“…In terms of hardware, ETAs can be developed in different ways depending mainly on the type of input sensors and how information is transmitted to the visually impaired person (VIP). Input sensors commonly found in the literature are GPS cameras, IMUs, RFID readers, infrared lasers and others (Fajarnes et al, 2010;Katz et al, 2012;Mehta et al, 2011;Tapu et al, 2016). Each input sensor can be used alone or in conjunction with others to provide safety information to the user via acoustic audio feedback (Schauerte et al, 2012), where sounds represent the information, or the user receives some other physical stimulus, such as vibrations (Bourbakis, 2008).…”

Section: Introductionmentioning

confidence: 99%

Embedded Navigation and Classification System for Assisting Visually Impaired People

Dourado

Pedrino

2018

Proceedings of the 13th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Application

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Loss of vision has a large detrimental impact on a person's mobility. Every day, visually impaired people (VIPs) face various challenges just to get around in the most diverse environments. Technological solutions, called Electronic Travel Aids, help a VIP with these challenges, giving greater confidence in the task of getting around in unfamiliar surroundings. Thus, this article presents an embedded navigation and classification system for helping VIPs indoors. Using stereo vision, the system is able to detect obstacles and choose safe ways for the VIP to walk around without colliding. A convolutional neural network using a graphics processing unit (GPU) classifies the obstacles. Acoustic feedback is transmitted to the VIP. The article also features a wearable prototype, to which the system hardware is docked for use. Using the system, the prototype could detect and classify obstacles in real time defining free paths, all with battery autonomy of about 6 hours.

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“…One of the most problematic tasks for VI people is outdoor navigation. In the literature this element is typically termed as Macro-Navigation or Orientation [1]. It includes multiple processes such as being oriented, selecting an appropriate path, maintaining the path, and detecting when the destination has been reached [2].…”

Section: Introductionmentioning

confidence: 99%

“…This results in difficulties relating to correct orientation or heading, piloting (i.e. guidance from place to place using land marks) and retaining the path etc [1]. A system that assists visually impaired persons' navigation and orientation in real time will be of great benefit to achieve this demanding task.…”

Section: Introductionmentioning

confidence: 99%

Smart Cane Outdoor Navigation System for Visually Impaired Deaf-blind and Blind Persons

Pulli¹

2014

Commun Disord Deaf Stud Hearing Aids

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Purpose: The purpose of this study is to build an outdoor navigation system to assist Visually Impaired (VI) persons' navigation independently in urban areas, regardless of the person's hearing status. An augmented cane, magnetic point or continuous metallic trails, pulsing magnet apparatuses, and the transmission of serialized vibration braille encoded guidance are the features of the proposed navigation system. Trails of magnetic points or metal and pulsing magnet apparatuses will be installed on the sidewalks in the city centres. People with VI are able to sense the magnet points or the metallic trail through their augmented cane. This system will assist them to walk independently. Pulsing magnet apparatuses will be installed at Point of Interests (POI) on sidewalks, such as turns and other decision points, to inform persons through serialized vibrational messages. Methods:The research follows design science research framework with characteristics of prototype construction validation in Living Lab environment.Qualitative research methods (interviews and questionnaire) are employed to for user centered development process and to evaluate afterwards how well the designed artifacts meet the requirements it was set to resolve. Quality Function Deployment (QFD) method will be applied to convert users' requirements into the features of the system.Usability experiments are defined to evaluate the usability of the proposed system in user tests. Pre-test qualitative interviews were performed in Pakistan with 15 blind or VI persons. All the subjects also participated into the system's usability testing. Results:The feedback of the test persons on about the proposed system after participating in the practical experiment of the system was positive. Based on the results, this kind of system would aid their navigation. The study also collected usability suggestions for further development of the system. Conclusion:The proposed navigation system receives positive feedback from the potential users and the stakeholders. 13 out of the 15 blind and VI test persons were able to follow the test track successfully with the prototype and they found the proposed infrastructure applicable as navigation aid for the VI as a whole.

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NAVIG: augmented reality guidance system for the visually impaired

Cited by 123 publications

References 37 publications

Real-Time Range Imaging in Health Care: A Survey

Real-Time Range Imaging in Health Care: A Survey

Embedded Navigation and Classification System for Assisting Visually Impaired People

Smart Cane Outdoor Navigation System for Visually Impaired Deaf-blind and Blind Persons

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