An Indoor Navigation System for the Visually Impaired Based on RSS Lateration and RF Fingerprint

Narupiyakul, Lalita; Sanghlao, Snit; Yimwadsana, Boonsit

doi:10.1007/978-3-319-94523-1_20

Cited by 4 publications

(2 citation statements)

References 8 publications

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“…The indoor positioning based on Wi-Fi signals has the advantages of convenient deployment, low hardware cost and high real-time performance. However, Wi-Fi based indoor positioning faces the problem of the volatility of Wi-Fi signals and the high-dimensional sparseness of fingerprint [ 4 ]. This study focused on improving indoor positioning using a Wi-Fi fingerprint.…”

Section: Introductionmentioning

confidence: 99%

JLGBMLoc—A Novel High-Precision Indoor Localization Method Based on LightGBM

Yin

Deng

2021

Sensors

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Wi-Fi based localization has become one of the most practical methods for mobile users in location-based services. However, due to the interference of multipath and high-dimensional sparseness of fingerprint data, with the localization system based on received signal strength (RSS), is hard to obtain high accuracy. In this paper, we propose a novel indoor positioning method, named JLGBMLoc (Joint denoising auto-encoder with LightGBM Localization). Firstly, because the noise and outliers may influence the dimensionality reduction on high-dimensional sparseness fingerprint data, we propose a novel feature extraction algorithm—named joint denoising auto-encoder (JDAE)—which reconstructs the sparseness fingerprint data for a better feature representation and restores the fingerprint data. Then, the LightGBM is introduced to the Wi-Fi localization by scattering the processed fingerprint data to histogram, and dividing the decision tree under leaf-wise algorithm with depth limitation. At last, we evaluated the proposed JLGBMLoc on the UJIIndoorLoc dataset and the Tampere dataset, the experimental results show that the proposed model increases the positioning accuracy dramatically compared with other existing methods.

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Section: Introductionmentioning

confidence: 99%

JLGBMLoc—A Novel High-Precision Indoor Localization Method Based on LightGBM

Yin

Deng

2021

Sensors

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“…Al-Madani et al, 2019;Karabtcev et al, 2019;Leng et al, 2019;Meliones & Sampson, 2018;Murata et al, 2018Murata et al, , 2019Nagarajan et al, 2020;Nair et al, 2022;Sato et al, 2017 Chumkamon et al, 2017;Doush et al, 2017;Endo et al, 2017;Hoang et al, 2017;Jhonny et al, 2017;Khan & Prakash, 2017;Lim et al, 2017;Manoj & Rohini, 2017;Sato et al, 2017;Zeng et al, 2017. 11 2018Bhat et al, 2018Gomes et al, 2018;Islam et al, 2018;Jadhav et al, 2018;Jafri & Khan, 2018;Kim et al, 2018;Manikanta et al, 2018;Meliones & Sampson, 2018;Milici et al, 2018;Murata et al, 2018;Narupiyakul et al, 2018;Nemer, 2018;Pravin & Sundararajan, 2018;Ramesh et al, 2018;Rihan & Seym, 2018;Vadwala et al, 2018;Vamsi Krishna & Aparna, 2018. 17 2019 Abhigna et al, 2019;Al-Madani et al, 2019;Aleixo, 2019;Bharti et al, 2019;Botre & Askhedkar, 2019;…”

Section: Studiesmentioning

confidence: 99%

The Functionalities and Technologies Trends in Developing Electronic Travel Aids for the Blind or Visually Impaired People: A Review

Proceedings of the International Conference on Industrial Engineering and Operations Management

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In all parts of the community, basic autonomous navigation is essential. The capability to navigate complicated environments allows people to achieve a wide range of physical and mental objectives. With minimal non-visual infrastructure, indoor navigation is a complicated cognitive and perceptual activity, unlike Global Positioning System (GPS) infrastructure for outdoor navigation. Blind or visually impaired people (BVIP) require sophisticated technologies with inbuilt functionalities for obstacle detection and recognition and the identification of desired destinations like rooms, stairs, and elevators to better orient themselves and navigate in unfamiliar indoor environments. Electronic travel aids (ETAs) have developed and offered exceptional navigation support for the BVIP. ETAs increase opportunities for autonomous navigation by providing information regarding the surroundings in the indoor or outdoor environment, the user's present position, and navigational instructions about the route to a targeted destination. However, less focus has been found in the literature on integrating several functions in ETAs to have a more comprehensive system that supports indoor navigation activity of BVIP to facilitate the mobility of BVIP. This study provides a thorough review of previously developed ETAs using two main criteria: the used technologies and the fulfilled functions. Based on the review findings, this study suggests future research path of technological instrumentation for the BVIP' ETA solutions in indoor navigation.

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Recent advancements in indoor electronic travel aids for the blind or visually impaired: a comprehensive review of technologies and implementations

Kim

2024

Univ Access Inf Soc

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An Indoor Navigation System for the Visually Impaired Based on RSS Lateration and RF Fingerprint

Cited by 4 publications

References 8 publications

JLGBMLoc—A Novel High-Precision Indoor Localization Method Based on LightGBM

JLGBMLoc—A Novel High-Precision Indoor Localization Method Based on LightGBM

The Functionalities and Technologies Trends in Developing Electronic Travel Aids for the Blind or Visually Impaired People: A Review

Recent advancements in indoor electronic travel aids for the blind or visually impaired: a comprehensive review of technologies and implementations

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