Filters








427 Hits in 4.4 sec

Associating Locations Between Indoor Journeys from Wearable Cameras [chapter]

Jose Rivera-Rubio, Ioannis Alexiou, Anil A. Bharath
2015 Lecture Notes in Computer Science  
First, we compare different techniques for visual feature extraction with the aim of associating locations between different journeys along roughly the same physical route.  ...  The main question we address is whether it is possible to crowdsource navigational data in the form of video sequences captured from wearable cameras.  ...  Conclusion We have presented several contributions in the topic of indoor localization using visual path matching from wearable and hand-held cameras.  ... 
doi:10.1007/978-3-319-16220-1_3 fatcat:jlzkscq7wbaqvhv2hgn5nopija

An assistive haptic interface for appearance-based indoor navigation

Jose Rivera-Rubio, Kai Arulkumaran, Hemang Rishi, Ioannis Alexiou, Anil A. Bharath
2016 Computer Vision and Image Understanding  
Here, we propose a navigation technique using low-resolution images from wearable or hand-held cameras to identify landmarks that are indicative of a user's position along crowdsourced paths.  ...  We assess the accuracy of vision-based localisation by making comparisons with estimates of location derived from both a recent SLAM-based algorithm and from indoor surveying equipment.  ...  They launch an App which starts collecting images from the camera of the Senseg TM tablet or from a wearable camera paired with the tablet.  ... 
doi:10.1016/j.cviu.2016.02.014 fatcat:7avikn6i35dgbnxc2guppp4lzq

Appearance-based indoor localization: A comparison of patch descriptor performance

Jose Rivera-Rubio, Ioannis Alexiou, Anil A. Bharath
2015 Pattern Recognition Letters  
Such visual information could be collected by crowdsourcing low-resolution video feeds, allowing journeys made by different users to be associated with each other, and location to be inferred without requiring  ...  For each type of descriptor, we also tested different techniques to encode visual structure and to search between journeys to estimate a user's position.  ...  The dataset includes both hand-held and wearable camera examples, all containing ground-truth location relative to distance traversed along labelled paths.  ... 
doi:10.1016/j.patrec.2015.03.003 fatcat:3st4sbxafnbs7h6dohpwqvwqnq

A Systematic Review of Urban Navigation Systems for Visually Impaired People

Fatma El-zahraa El-taher, Ayman Taha, Jane Courtney, Susan Mckeever
2021 Sensors  
Blind and Visually impaired people (BVIP) face a range of practical difficulties when undertaking outdoor journeys as pedestrians.  ...  This limits the generalisability of models generated from the associated research works.  ...  This phase addresses the tasks associated with enriching available maps with useful information for such journeys.  ... 
doi:10.3390/s21093103 pmid:33946857 fatcat:iv46e4r2nvh5lcpyomtcgbfd6y

Assessing the Impact of a New Urban Greenway Using Mobile, Wearable Technology-Elicited Walk- and Bike-Along Interviews

Deepti Adlakha, Mark A. Tully, Perla Mansour
2022 Sustainability  
Walk/bike-along interviews were conducted with participants using a body-worn or bicycle-mounted portable digital video camera (GoPro HERO 3+ camera) to record their self-determined journeys along the  ...  This is the first study to demonstrate the feasibility of using wearable sensors to capture participants' responses to the built environment in real-time during their walking and cycling journeys.  ...  This camera provided a high-quality, three-dimensional video of participants' journeys.  ... 
doi:10.3390/su14031873 fatcat:f3gzcauf7bcupexwqdkhff72xm

Navigation Systems for the Blind and Visually Impaired: Past Work, Challenges, and Open Problems

Real, Araujo
2019 Sensors  
To that end, previous solutions will be briefly described and analyzed from a historical perspective, from the first "Electronic Travel Aids" and early research on sensory substitution or indoor/outdoor  ...  In line with this, smartphones and wearables with built-in cameras will then be indicated as potentially feasible options with which to support state-of-art computer vision solutions, thus allowing for  ...  For example, the Smart Cane system [60] used a depth camera and a server for SLAM processing that allowed for six degrees-of-freedom indoor location, plus obstacle detection features.  ... 
doi:10.3390/s19153404 pmid:31382536 pmcid:PMC6696419 fatcat:3i7uedssqbe63gdgplimfrsfc4

On Smart-Care Services: Studies of Visually Impaired Users in Living Contexts

Ying Liu, Jean Bacon, Roger Wilson-Hinds
2007 First International Conference on the Digital Society (ICDS'07)  
Contexts such as mobility dependencies must therefore be recorded and used, indoors and outside.  ...  Such a device scans each camera snapshot from left to right, while associating height with pitch and brightness with loudness.  ...  Researchers have demonstrated that information about an object and its location can be described and encoded in a RFID tag associated with the object.  ... 
doi:10.1109/icds.2007.31 dblp:conf/icds/LiuBW07 fatcat:ohjlnlahbrhzret43ulon4qqcy

Expanding Navigation Systems by Integrating It with Advanced Technologies [chapter]

Menachem Domb
2020 Geographic Information Systems in Geospatial Intelligence [Working Title]  
Navigation systems provide the optimized route from one location to another.  ...  GIS is already integrated with GPS to provide the visualization and realization aspects of a given location.  ...  Integration to the outdoor navigation system is available to allow smooth transition from/to outdoor/indoor.  ... 
doi:10.5772/intechopen.91203 fatcat:gbb2jeylmffc3gqlmbahfy54ee

A survey on wearable technology: History, state-of-the-art and current challenges

Aleksandr Ometov, Viktoriia Shubina, Lucie Klus, Justyna Skibińska, Salwa Saafi, Pavel Pascacio, Laura Flueratoru, Darwin Quezada Gaibor, Nadezhda Chukhno, Olga Chukhno, Asad Ali, Asma Channa (+11 others)
2021 Computer Networks  
The main aim of this paper is to shed light on the history of wearable devices and provide a state-of-the-art review on the wearable market.  ...  and market status, as well as a variety of other actual information on wearable technology.  ...  Topics, which interest her most are location privacy, privacy-preserving mechanisms, indoor positioning, and wearable technologies.  ... 
doi:10.1016/j.comnet.2021.108074 fatcat:523aaizt5jb7jgy6vzysm6q5iu

2019 PhD Research Journal Summary [article]

Alexander Hayes
2019 Figshare  
assisting people who suffered from Alzheimer's using a range of body worn cameras and other wearable technologies.  ...  Feedback from audience participants who included other doctoral students, drew associations between law enforcement use of BWCs and likely use as marginalisation or racial profiling tools against Aboriginal  ... 
doi:10.6084/m9.figshare.8142182.v2 fatcat:2sqgdma4m5htbhdsb4nxz367ni

Review of Technology-Supported Multimodal Solutions for People with Dementia

Majid Zamiri, Joao Sarraipa, Fernando Luis Ferreira, Gary Mc Manus, Philip O'Brien, Luis M. Camarinha-Matos, Ricardo Jardim-Goncalves
2021 Sensors  
To this end, 30 potential supportive technologies and 15 active supportive services are identified from the literature and related websites.  ...  aimed as a base for designing, integrating, developing, adapting, and customizing potential multimodal solutions for the specific needs of vulnerable people of our societies, such as those who suffer from  ...  Partial support also comes from Fundação para a Ciência e Tecnologia through the program UIDB/00066/2020 (CTS-Center of Technology and Systems).  ... 
doi:10.3390/s21144806 fatcat:vmjdhosjtrcxne7ukjugbtyhly

Enhanced navigation systems in GPS denied environments for visually impaired people: A Survey [article]

Ali Hojjat
2018 arXiv   pre-print
In this paper an overview of some existing indoor navigation systems for visually impaired people are presented and they are compared from different perspectives.  ...  Over the past decade various indoor navigation systems have been developed.  ...  In other words, users can discriminate between objects in the same class in indoor environments such as elevators, bathrooms, exits, and office doors.  ... 
arXiv:1803.05987v2 fatcat:mbciarr7urgrbechkm5lyez7b4

Microclimate and weathering of a historical building: The Ducal Palace in Urbino

A. Bernardi, D. Camuffo, M. Del Monte, C. Sabbioni
1985 Science of the Total Environment  
cameras, 360 panoramas and HD images.  ...  The digitization workflow has combined the several sensors and technology at different scales, such as static and mobile wearable laser scanners systems, the different focals for internal and external  ...  Recently, the development of wearable systems based on multiple profilers and cameras opens to new challenging field of applications.  ... 
doi:10.1016/0048-9697(85)90297-9 fatcat:ai6wotkljve4veehmviqjrdpem

Preliminary Investigation: A background to an ethnographic investigation of Body Worn Cameras (BWCs)

Alexander Hayes
2021 figshare.com  
designed for inclusion following the main '2.0 Literature Review' chapter, '3.0 Research Design' chapter and prefacing '4.0 Observational Study' in the PhD thesis 'The Socioethical Implications of Body Worn Cameras  ...  As the Netnography reveals, cohesive links can be derived from the associations and professional collaborations between sectors, interdisciplinary research and globally networked projects.  ...  Masakazu Miyamae was soon identified as a leader in how sensor enhanced wearables would harness LBS and RFID for indoor and outdoor applications.  ... 
doi:10.6084/m9.figshare.12033408.v1 fatcat:xjkedko7mzhjrfdlruiy4zjona

A Review on Path Selection and Navigation Approaches Towards an Assisted Mobility of Visually Impaired People

2020 KSII Transactions on Internet and Information Systems  
Khalid Bashir has a PhD in Computer Vision from Queen Mary, UoL, UK. He is a highly focused expert with the ability to drive research and academic results and needs.  ...  In the process, we explore machine learning approaches for robotic path planning, multi constrained optimal path computation and sensor based wearable assistive devices for the visually impaired.  ...  Context-aware navigation system: A few efforts have been made to acquire contextual information from interactions between humans and physical-spaces or features associated with the environmental entities  ... 
doi:10.3837/tiis.2020.08.007 fatcat:k3r6ceqxcbg7xkllthpox3ix3a
« Previous Showing results 1 — 15 out of 427 results