CSI-based Device-Free Joint Activity Recognition and Localization using Siamese Networks

2022 ◽  
Author(s):  
Mohammad Zeeshan ◽  
Ankur Pandey ◽  
Sudhir Kumar
Keyword(s):  
Activity Recognition ◽  
Joint Activity ◽  
Device Free ◽  
Siamese Networks

Device-free occupant activity recognition in smart offices using intrinsic Wi-Fi components

2020 ◽  
Vol 172 ◽  
pp. 106737 ◽  
Author(s):  
Qizhen Zhou ◽  
Jianchun Xing ◽  
Qiliang Yang
Keyword(s):  
Activity Recognition ◽  
Device Free

scholarly journals Compressive Representation for Device-Free Activity Recognition with Passive RFID Signal Strength

2018 ◽  
Vol 17 (2) ◽  
pp. 293-306 ◽  
Author(s):  
Lina Yao ◽  
Quan Z. Sheng ◽  
Xue Li ◽  
Tao Gu ◽  
Mingkui Tan ◽  
...  
Keyword(s):  
Activity Recognition ◽  
Signal Strength ◽  
Passive Rfid ◽  
Device Free ◽  
Free Activity

Teach Your WiFi-Device

2014 ◽  
Vol 6 (1) ◽  
pp. 20-34 ◽  
Author(s):  
Stephan Sigg ◽  
Shuyu Shi ◽  
Yusheng Ji
Keyword(s):  
Activity Recognition ◽  
Software Defined Radio ◽  
Good Accuracy ◽  
Antenna System ◽  
End User ◽  
Active Device ◽  
Single Antenna ◽  
Device Free ◽  
Free Activity

The authors consider two untackled problems in RF-based activity recognition: the distinction of simultaneously conducted activities of individuals and the recognition of gestures from purely time-domain-based features. Recognition is based on a single antenna system. This is important for the application in end-user devices which are usually single-antenna systems and have seldom access to more sophisticated, e.g. frequency-based features. In case studies with software defined radio nodes utilised in an active, device-free activity recognition (DFAR) system, the authors observe a good recognition accuracy for the detection of multiple simultaneously conducted activities with two and more receive devices. Four gestures and two baseline situations are distinguished with good accuracy in a second case study.

CSI-Based Device-Free Wireless Localization and Activity Recognition Using Radio Image Features

2017 ◽  
Vol 66 (11) ◽  
pp. 10346-10356 ◽  
Author(s):  
Qinhua Gao ◽  
Jie Wang ◽  
Xiaorui Ma ◽  
Xueyan Feng ◽  
Hongyu Wang
Keyword(s):  
Activity Recognition ◽  
Image Features ◽  
Radio Image ◽  
Wireless Localization ◽  
Device Free
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