Obstacle Detection using Stereo Imaging to Assist the Navigation of Visually Impaired People

Costa, Paulo Manuel; Fernandes, Hugo; Martins, Paulo; Barroso, João; Hadjileontiadis, Leontios

doi:10.1016/j.procs.2012.10.010

Cited by 48 publications

(22 citation statements)

References 7 publications

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“…Lab systems have demonstrated concepts including obstacle detection based on stereoscopic images [10] and radar based indoor navigation [11]. Vision systems without displays have also been explored including Merino-Gracia et al's [12] head-mounted camera system for real time text recognition with text-to-speech audio.…”

Section: Related Workmentioning

confidence: 99%

What Do Low-Vision Users Really Want from Smart Glasses? Faces, Text and Perhaps No Glasses at All

Sandnes

2016

Lecture Notes in Computer Science

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Abstract. Recent advances in low cost wearable computers opens up new possibilities for the development of innovative visual aids. A head-mounted display with cameras that capture views of the physical world, a wearable computer can process the image and present an augmented view to the user. Although, some research is reported into the development of such visual prosthetics the functionalities often appear ad-hoc. This study set out to identify what functionality visually impaired users need in various contexts to reduce barriers. Information was gathered via interviews of visually impaired individuals. The results show that recognizing faces and text is the most important functions while the idea of smart glasses where questioned.

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Section: Related Workmentioning

confidence: 99%

What Do Low-Vision Users Really Want from Smart Glasses? Faces, Text and Perhaps No Glasses at All

Sandnes

2016

Lecture Notes in Computer Science

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“…An object collision detection algorithm based on disparity images is proposed in [3]. This method uses a 2D Ensemble Empirical Mode Decomposition image optimization algorithm and a two layer disparity image segmentation to detect nearby objects.…”

Section: Related Workmentioning

confidence: 99%

“…For the obstacle detection using stereo imaging few parameters are very crucial viz., size, position of obstacle, accuracy and speed of the algorithm. This information may be obtained using the approaches such as ladar (laser ranging), sonar (sound ranging) or vision based techniques [3]. Stereo imaging technique provides advantages in terms of accurate position estimation as well as fast computation with low cost solution.…”

Section: Introductionmentioning

confidence: 99%

Detection of Obstacles using Stereo Imaging

Deshmukh¹,

Deshpande²

2015

IJCA

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This paper presents an implementation of algorithm for detecting obstacles based on stereo vision technique. This algorithm mainly focuses on detection of obstacle and computation of obstacle depth based on stereo matching and disparity map. This technique incorporates several steps such as pre-processing and depth analysis for obstacle detection. In the preprocessing step, Otsu's thresholding and adaptive thresholding methods are used for efficient detection of obstacles. After computation of obstacles, depth analysis is performed with the help of disparity map. Experimental results are demonstrated giving robust analysis of obstacle detection based on standard stereo dataset.

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“…Others have proposed to provide depth cues [15] where objects closer to the viewer are given a brighter colour than objects further away. A more direct approach is obstacle detection and identification, for instance, using stereoscopic vision [16] and laser range scanners [17].…”

Section: Introductionmentioning

confidence: 99%

Head-Mounted Augmented Reality Displays on the Cheap: A DIY Approach to Sketching and Prototyping Low-Vision Assistive Technologies

Sandnes

Eika

2017

Universal Access in Human–Computer Interaction. Designing Novel Interactions

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Several wearable augmented reality devices have emerged in recent years. Although these devices target users with 20/20 vision, they have also been explored as low vision aids. However, such devices are still relatively inaccessible and expensive. This study explores one of the inexpensive commercial headmounted see-through display, google cardboard, and a simple homemade wearable augmented reality display. The experimentation reveals that, although not perfect, the homemade device built using a smartphone and common household scrap items is the most promising platform for experimenting with visual aids.

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Obstacle Detection using Stereo Imaging to Assist the Navigation of Visually Impaired People

Cited by 48 publications

References 7 publications

What Do Low-Vision Users Really Want from Smart Glasses? Faces, Text and Perhaps No Glasses at All

What Do Low-Vision Users Really Want from Smart Glasses? Faces, Text and Perhaps No Glasses at All

Detection of Obstacles using Stereo Imaging

Head-Mounted Augmented Reality Displays on the Cheap: A DIY Approach to Sketching and Prototyping Low-Vision Assistive Technologies

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