Autonomous Smart White Cane Navigation System for Indoor Usage

Messaoudi, Mohamed Dhiaeddine; Ménélas, Bob-Antoine J.; Mcheick, Hamid

doi:10.3390/technologies8030037

Cited by 20 publications

(10 citation statements)

References 30 publications

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“…We implemented the obstacle detection and localization system to enable safe mobility for VIBs through the early detection of obstacles in their paths. A traditional device used by VIBs in their travels is the white cane, (12)(13)(14) which can only detect obstacles on the ground and cannot detect obstacles such as hanging branches and other overhead obstacles. Although a sensor can be attached to a white cane to detect head-level obstructions, only binary data, i.e., an obstacle existing/not existing around the sensor, can be obtained without any location data.…”

Section: Methodsmentioning

confidence: 99%

Haptic Feedback to Detect Obstacles in Multiple Regions for Visually Impaired and Blind People

See¹,

Costillas²,

Advincula³

et al. 2021

Sensors and Materials

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Focus on the development of assistive devices for visually impaired and blind people (VIBs) to provide assistance in their safety and mobility has increased, but making such devices portable is still a challenge. We propose a system for localized obstacle avoidance with a haptic-based interface for VIBs implemented using a robotic operating system (ROS) to improve the obstacle detection of existing assistive devices. With a depth camera sensor, an obstacle localization algorithm was developed utilizing the ROS framework to identify key regions to detect head-level, left/right torso-level, and left/right ground-level obstacles. The proposed wearable device provides a discernible array of haptic feedback to convey the perceived locations of obstacles. The system was tested by blindfolded volunteers to determine the accuracy in determining object locations in various environments. Experimental results showed the consistency of the system across different setups. The obstacle detection algorithm was optimized and evaluated to discriminate noises and concurrently detect smaller obstacles, thus making detection more robust. Subsequently, the Eulerian video magnification method was used to determine the level of vibration isolation for a prototype.

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Section: Methodsmentioning

confidence: 99%

Haptic Feedback to Detect Obstacles in Multiple Regions for Visually Impaired and Blind People

See¹,

Costillas²,

Advincula³

et al. 2021

Sensors and Materials

View full text Add to dashboard Cite

show abstract

“…The ultrasonic sensor can obtain the information of obstacles in the close range of the smart blind cane. MD Messaoudi et al (2020) [ 55 ] proposed a smart blind cane integrating monocular camera, ultrasonic sensor, ESP32-WIFI module and voice module, as shown in Figure 4 . The Pixy 2 monocular camera was mounted on the smart cane to detect colors, road signs and track lines.…”

Section: Application Status Of Laser Vision Sensing Smart Canementioning

confidence: 99%

“…Some researchers have carried out research on the smart cane based on the Internet of Things technology (IoT) [ 55 , 83 ]. The information interaction between the smart cane and the visually impaired, pedestrians and vehicles on the road, nearby buildings and infrastructure will weave the guide system of the whole society into a network of mutual connections.…”

Section: Future Development Of Laser Vision Sensing Smart Canesmentioning

confidence: 99%

Laser Sensing and Vision Sensing Smart Blind Cane: A Review

Mai

Xie

Zeng

et al. 2023

Sensors

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Laser sensing and vision sensing smart canes can improve the convenience of travel for the visually impaired, but for the present, most of the system functions of laser sensing and vision sensing smart canes are still defective. Guide equipment and smart blind canes are introduced and classified first, and the smart blind canes based on vision sensing, laser sensing and laser vision sensing are investigated, respectively, and the research status of laser vision sensing smart blind canes is sorted out. The advantages and disadvantages of various laser vision sensing smart blind canes are summarized, especially the research development of laser vision fusion as the core of new smart canes. The future development prospects of laser vision sensing smart blind cane are overviewed, to boost the development of laser vision sensing smart blind cane, to provide safe and efficient travel guarantee for the visually impaired.

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“…The problem with this system is that it failed in obstacle detection and warning alerts [ 68 ]. Another navigation system uses a microcontroller to detect the obstacles and a feedback system that alerts the users about obstacles through voice and vibration [ 69 ].…”

Section: Tools Based On Navigation Systems For the Visually Impairedmentioning

confidence: 99%

Review of Navigation Assistive Tools and Technologies for the Visually Impaired

Messaoudi

Ménélas

Mcheick

2022

Sensors

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The visually impaired suffer greatly while moving from one place to another. They face challenges in going outdoors and in protecting themselves from moving and stationary objects, and they also lack confidence due to restricted mobility. Due to the recent rapid rise in the number of visually impaired persons, the development of assistive devices has emerged as a significant research field. This review study introduces several techniques to help the visually impaired with their mobility and presents the state-of-the-art of recent assistive technologies that facilitate their everyday life. It also analyses comprehensive multiple mobility assistive technologies for indoor and outdoor environments and describes the different location and feedback methods for the visually impaired using assistive tools based on recent technologies. The navigation tools used for the visually impaired are discussed in detail in subsequent sections. Finally, a detailed analysis of various methods is also carried out, with future recommendations.

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Autonomous Smart White Cane Navigation System for Indoor Usage

Cited by 20 publications

References 30 publications

Haptic Feedback to Detect Obstacles in Multiple Regions for Visually Impaired and Blind People

Haptic Feedback to Detect Obstacles in Multiple Regions for Visually Impaired and Blind People

Laser Sensing and Vision Sensing Smart Blind Cane: A Review

Review of Navigation Assistive Tools and Technologies for the Visually Impaired

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