Fusing WiFi and video sensing for accurate group detection in indoor spaces

Understanding one's group context in indoor spaces is useful for many reasons - e.g., at a shopping mall, knowing a customer's group context can help in offering context-specific incentives, or estimating taxi demand for customers exiting the mall. Group detection and monitoring using WiFi...

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Main Authors: JAYARAJAH, Kasthuri, LANTRA, Zaman, MISRA, Archan
Format: text
Language:English
Published: Institutional Knowledge at Singapore Management University 2016
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Online Access:https://ink.library.smu.edu.sg/sis_research/3636
https://ink.library.smu.edu.sg/context/sis_research/article/4638/viewcontent/wpa16_group.pdf
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Institution: Singapore Management University
Language: English
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spelling sg-smu-ink.sis_research-46382019-06-16T09:36:05Z Fusing WiFi and video sensing for accurate group detection in indoor spaces JAYARAJAH, Kasthuri LANTRA, Zaman MISRA, Archan Understanding one's group context in indoor spaces is useful for many reasons - e.g., at a shopping mall, knowing a customer's group context can help in offering context-specific incentives, or estimating taxi demand for customers exiting the mall. Group detection and monitoring using WiFi-based indoor location traces fails when users are invisible (either because they don't carry smartphones, or because their WiFi is turned OFF) or when location tracking is inaccurate. In this paper, we propose a multi-modal group detection system that fuses two independent modes: video and WiFi, for detecting groups with low latency and high accuracy. We present preliminary results from a micro-study with 20 group episodes and report an overall precision of 0.81 and recall of 0.9, an improvement of over ≈20% over WiFi-based group detection. 2016-06-01T07:00:00Z text application/pdf https://ink.library.smu.edu.sg/sis_research/3636 info:doi/10.1145/2935651.2935659 https://ink.library.smu.edu.sg/context/sis_research/article/4638/viewcontent/wpa16_group.pdf http://creativecommons.org/licenses/by-nc-nd/4.0/ Research Collection School Of Computing and Information Systems eng Institutional Knowledge at Singapore Management University Group Monitoring Multi-Modal Sensing Sensor Fusion Software Engineering Technology and Innovation
institution Singapore Management University
building SMU Libraries
continent Asia
country Singapore
Singapore
content_provider SMU Libraries
collection InK@SMU
language English
topic Group Monitoring
Multi-Modal Sensing
Sensor Fusion
Software Engineering
Technology and Innovation
spellingShingle Group Monitoring
Multi-Modal Sensing
Sensor Fusion
Software Engineering
Technology and Innovation
JAYARAJAH, Kasthuri
LANTRA, Zaman
MISRA, Archan
Fusing WiFi and video sensing for accurate group detection in indoor spaces
description Understanding one's group context in indoor spaces is useful for many reasons - e.g., at a shopping mall, knowing a customer's group context can help in offering context-specific incentives, or estimating taxi demand for customers exiting the mall. Group detection and monitoring using WiFi-based indoor location traces fails when users are invisible (either because they don't carry smartphones, or because their WiFi is turned OFF) or when location tracking is inaccurate. In this paper, we propose a multi-modal group detection system that fuses two independent modes: video and WiFi, for detecting groups with low latency and high accuracy. We present preliminary results from a micro-study with 20 group episodes and report an overall precision of 0.81 and recall of 0.9, an improvement of over ≈20% over WiFi-based group detection.
format text
author JAYARAJAH, Kasthuri
LANTRA, Zaman
MISRA, Archan
author_facet JAYARAJAH, Kasthuri
LANTRA, Zaman
MISRA, Archan
author_sort JAYARAJAH, Kasthuri
title Fusing WiFi and video sensing for accurate group detection in indoor spaces
title_short Fusing WiFi and video sensing for accurate group detection in indoor spaces
title_full Fusing WiFi and video sensing for accurate group detection in indoor spaces
title_fullStr Fusing WiFi and video sensing for accurate group detection in indoor spaces
title_full_unstemmed Fusing WiFi and video sensing for accurate group detection in indoor spaces
title_sort fusing wifi and video sensing for accurate group detection in indoor spaces
publisher Institutional Knowledge at Singapore Management University
publishDate 2016
url https://ink.library.smu.edu.sg/sis_research/3636
https://ink.library.smu.edu.sg/context/sis_research/article/4638/viewcontent/wpa16_group.pdf
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