Contribution of Augmented Reality Solutions to Assist Visually Impaired People in Their Mobility

Froissard, Benoît; Konik, Hubert; Trémeau, Alain; Dinet, Éric

doi:10.1007/978-3-319-07509-9_18

Cited by 8 publications

(7 citation statements)

References 11 publications

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“…Thanks to the real-time interaction characteristic of AR [3], there is an opportunity to utilize an AR headset to assist visually impaired people [11]. There are various ways to improve vision through a Head Mounted Device (HMD) as, for example, by using magnification [58,59], edge enhancement [22,29], contrast enhancement [17], or by combining different functions such as brightness and/or color adjustment [25,70].…”

Section: Augmented Reality Glassesmentioning

confidence: 99%

A multichannel LED-based lighting approach to improve color discrimination for low vision people

Yang¹,

Dinet²,

Katemake³

et al. 2023

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The population of low vision people increases continuously with the acceleration of aging society. As reported by the World Health Organization (WHO), most of this population is over the age of 50 years and 81% were not concerned by any visual problem before. A visual deficiency can dramatically affect the quality of life and challenge the preservation of a safe independent existence.This study presents a LED-based lighting approach to assist people facing an age-related visual impairment. The research procedure is based on a psychophysical experiment consisting in the ordering of standard color samples. Volunteers wearing low vision simulation goggles performed such an ordering under different illumination conditions produced by a 24-channel multispectral lighting system. A filtering technique using color rendering indices coupled with color measurements allowed to objectively determine the lighting conditions providing the best scores in terms of color discrimination.Experimental results demonstrated that white light obtained by a special mixing of three selected channels can improve the color perception of low vision people in comparison to white LEDs nowadays available on the market for general lighting. Even if additional studies are required to go further, these first results give hope for the design of smart lighting devices that might adapt to the visual needs of the visually impaired.

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Section: Augmented Reality Glassesmentioning

confidence: 99%

A multichannel LED-based lighting approach to improve color discrimination for low vision people

Yang¹,

Dinet²,

Katemake³

et al. 2023

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“…We however take further inspiration from a relatively new trend of helping the visually impaired through augmented vision [14,8]. The basic principle is based on capturing images using a regular camera or depth sensor, and enhancing features of the image such as edges [8] or objects of interest [14]. These enhanced images are then displayed to the user on head-mounted AR-glasses, hence stimulating the residual vision of the user.…”

Section: Stereo Camerasmentioning

confidence: 99%

“…Over 85% of these individuals have some remaining vision [20]. Recently, there has been an interest in developing smart glasses [14,8], which seek to provide these people with additional information from the nearby environment through stimulation of the residual vision. The aim is to increase the information level regarding the close environment using depth and/or image edges.…”

Section: Semantic Maps For the Visually Impairedmentioning

confidence: 99%

“…Here, laser pointing devices have a long history as digital aids for the partially sighted (see [16] for a review). We however take further inspiration from a relatively new trend of helping the visually impaired through augmented vision [14,8]. The basic principle is based on capturing images using a regular camera or depth sensor, and enhancing features of the image such as edges [8] or objects of interest [14].…”

Section: Stereo Camerasmentioning

confidence: 99%

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The Semantic Paintbrush

Mikšík

Vineet

Lidegaard

et al. 2015

Proceedings of the 33rd Annual ACM Conference on Human Factors in Computing Systems

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Figure 1: (a) Our system comprises of an off-the-shelf pair of optical see-through glasses, with additional stereo RGB-Infrared cameras, and an additional handheld infrared/visible light laser. (b) The passive stereo cameras are used for extended range and outdoor depth estimation. (c) The user can see these reconstructions immediately using the heads-up display, and can use a laser pointer to draw onto the 3D world to semantically segment objects (once segmented these labels will propagate to new parts of the scene). (d) The laser pointer can also be triangulated precisely in the stereo infrared images allowing for interactive 'cleaning up' of the model during capture. (e) Final output, the semantic map of the scene. ABSTRACTWe present an augmented reality system for large scale 3D reconstruction and recognition in outdoor scenes. Unlike existing prior work, which tries to reconstruct scenes using active depth cameras, we use a purely passive stereo setup, allowing for outdoor use and extended sensing range. Our system not only produces a map of the 3D environment in real-time, it also allows the user to draw (or 'paint') with a laser pointer directly onto the reconstruction to segment the model into objects. Given these examples our system then learns to segment other parts of the 3D map during online acquisition. Unlike typical object recognition systems, ours therefore very much places the user 'in the loop' to segment particular objects of interest, rather than learning from predefined databases. The laser pointer additionally helps to 'clean up' the stereo reconstruction and final 3D map, interactively. Using our system, within minutes, a user can capture a full 3D map, segment it into objects of interest, and refine parts of the model during capture. We provide full technical details of our system to aid replication, as well as quantitative evaluation of system components. We demonstrate the possibility of using our system for helping the visually impaired navigate through spaces. Beyond this use, our system can be used for playing large-scale augmented reality games, shared online to augment streetview data, and used for more detailed car and person navigation.

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“…Molton et al [8] propose an image processing technique using stereo-vision system to discriminate the obstacles relative to the ground. Edge enhancement on natural images is investigated as a mean of providing pertinent information to the user [9]. To the best of our knowledge, these electronic aids do not offer luminosity control in both dark and bright levels.…”

Section: Introductionmentioning

confidence: 99%

High Dynamic Range Imaging System for the Visually Impaired

Maalej

Tatur

Lorenzini

et al. 2015

Computer Vision - ECCV 2014 Workshops

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This paper describes a portable High Dynamic Range (HDR) imaging system for visually impaired people, intended to display contrast enhanced images of real world environment. The device is composed of a digital camera and head mounted display (HMD) equipped with high resolution screens. The camera is mounted on the HMD to acquire the ambient scene, the acquired images are processed to generate HDR images through the control of local luminance information. The contrast enhancement method adopted in our system is based on pyramidal image contrast structure representation that rely on the local band-limited contrast definition. The imaging system we propose aim at displaying images that meet the visual capabilities related to contrast sensitivity of people with low vision. It also provides a solution to alleviate discomfort problem expressed by these people when they are facing real-world changing light conditions.

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Contribution of Augmented Reality Solutions to Assist Visually Impaired People in Their Mobility

Cited by 8 publications

References 11 publications

A multichannel LED-based lighting approach to improve color discrimination for low vision people

A multichannel LED-based lighting approach to improve color discrimination for low vision people

The Semantic Paintbrush

High Dynamic Range Imaging System for the Visually Impaired

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