Dynamic Node Collaboration for Mobile Target Tracking in Wireless Camera Sensor Networks Liang...
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![Page 1: Dynamic Node Collaboration for Mobile Target Tracking in Wireless Camera Sensor Networks Liang Liu†,‡, Xi Zhang†, and Huadong Ma‡ † Networking and Information.](https://reader034.fdocuments.net/reader034/viewer/2022052607/5a4d1b647f8b9ab0599af616/html5/thumbnails/1.jpg)
Dynamic Node Collaboration for Mobile Target Tracking in Wireless
Camera Sensor NetworksLiang Liu†,‡, Xi Zhang†, and Huadong Ma‡
† Networking and Information System LaboratoryDepartment of Electrical and Computer Engineering
Texas A&M University, College Station, TX 77843, USA‡ Beijing Key Lab of Intelligent Telecomm. Software and Multimedia,
Beijing University of Posts and Telecomm.,Beijing 100876, China
Study group 3/10 Jason
![Page 2: Dynamic Node Collaboration for Mobile Target Tracking in Wireless Camera Sensor Networks Liang Liu†,‡, Xi Zhang†, and Huadong Ma‡ † Networking and Information.](https://reader034.fdocuments.net/reader034/viewer/2022052607/5a4d1b647f8b9ab0599af616/html5/thumbnails/2.jpg)
Outline
• Introduction• Motion model of the target• Sensing model of camera sensors• Target tracking by SMC• Dynamic Node Collaboration• Selection of the Cluster Member• Simulation Results
![Page 3: Dynamic Node Collaboration for Mobile Target Tracking in Wireless Camera Sensor Networks Liang Liu†,‡, Xi Zhang†, and Huadong Ma‡ † Networking and Information.](https://reader034.fdocuments.net/reader034/viewer/2022052607/5a4d1b647f8b9ab0599af616/html5/thumbnails/3.jpg)
Introduction
• 2 advantages of camera tracking1. Most informative sensor 2. High-level analysis using image processing• 2 characteristics of camera tracking 1. Cooperative localization algorithm2. Forming a dynamic cluster2. Forming a dynamic cluster
1) Electing of cluster head(CH) 2) Selecting of cluster members(Cm)
![Page 4: Dynamic Node Collaboration for Mobile Target Tracking in Wireless Camera Sensor Networks Liang Liu†,‡, Xi Zhang†, and Huadong Ma‡ † Networking and Information.](https://reader034.fdocuments.net/reader034/viewer/2022052607/5a4d1b647f8b9ab0599af616/html5/thumbnails/4.jpg)
Introduction1) Electing of cluster head (CH)2) Selecting of cluster members(Cm)1) Electing of cluster head (CH)
- SMC based tracking procedure2) Selecting of cluster members(Cm)- Optimization-based algorithm
(considering about accuracy and energy consumption)
![Page 5: Dynamic Node Collaboration for Mobile Target Tracking in Wireless Camera Sensor Networks Liang Liu†,‡, Xi Zhang†, and Huadong Ma‡ † Networking and Information.](https://reader034.fdocuments.net/reader034/viewer/2022052607/5a4d1b647f8b9ab0599af616/html5/thumbnails/5.jpg)
Motion model of the target
Target location
Target velocity
![Page 6: Dynamic Node Collaboration for Mobile Target Tracking in Wireless Camera Sensor Networks Liang Liu†,‡, Xi Zhang†, and Huadong Ma‡ † Networking and Information.](https://reader034.fdocuments.net/reader034/viewer/2022052607/5a4d1b647f8b9ab0599af616/html5/thumbnails/6.jpg)
Sensing model of camera sensors
Li: Location of camerasr: Radius of sensingVi: unit vector of Alpha: offset angle
![Page 7: Dynamic Node Collaboration for Mobile Target Tracking in Wireless Camera Sensor Networks Liang Liu†,‡, Xi Zhang†, and Huadong Ma‡ † Networking and Information.](https://reader034.fdocuments.net/reader034/viewer/2022052607/5a4d1b647f8b9ab0599af616/html5/thumbnails/7.jpg)
Sensing model of camera sensors
Background Subtraction
![Page 8: Dynamic Node Collaboration for Mobile Target Tracking in Wireless Camera Sensor Networks Liang Liu†,‡, Xi Zhang†, and Huadong Ma‡ † Networking and Information.](https://reader034.fdocuments.net/reader034/viewer/2022052607/5a4d1b647f8b9ab0599af616/html5/thumbnails/8.jpg)
Sensing model of camera sensors
![Page 9: Dynamic Node Collaboration for Mobile Target Tracking in Wireless Camera Sensor Networks Liang Liu†,‡, Xi Zhang†, and Huadong Ma‡ † Networking and Information.](https://reader034.fdocuments.net/reader034/viewer/2022052607/5a4d1b647f8b9ab0599af616/html5/thumbnails/9.jpg)
Target tracking by SMC
• Tracking problem consists– Posterior function– Estimating location by expectation
• At t-1, we’ve known
![Page 10: Dynamic Node Collaboration for Mobile Target Tracking in Wireless Camera Sensor Networks Liang Liu†,‡, Xi Zhang†, and Huadong Ma‡ † Networking and Information.](https://reader034.fdocuments.net/reader034/viewer/2022052607/5a4d1b647f8b9ab0599af616/html5/thumbnails/10.jpg)
Target tracking by SMC
Posterior function updating
Estimating location by expectation
![Page 11: Dynamic Node Collaboration for Mobile Target Tracking in Wireless Camera Sensor Networks Liang Liu†,‡, Xi Zhang†, and Huadong Ma‡ † Networking and Information.](https://reader034.fdocuments.net/reader034/viewer/2022052607/5a4d1b647f8b9ab0599af616/html5/thumbnails/11.jpg)
Dynamic Node Collaboration
Motion Model of Target
![Page 12: Dynamic Node Collaboration for Mobile Target Tracking in Wireless Camera Sensor Networks Liang Liu†,‡, Xi Zhang†, and Huadong Ma‡ † Networking and Information.](https://reader034.fdocuments.net/reader034/viewer/2022052607/5a4d1b647f8b9ab0599af616/html5/thumbnails/12.jpg)
Selection of Cluster Member• Maximum utility: maximize the localization
accuracy under the specified cost
• Minimum cost: minimize the cost so as to attain a specified accuracy
![Page 13: Dynamic Node Collaboration for Mobile Target Tracking in Wireless Camera Sensor Networks Liang Liu†,‡, Xi Zhang†, and Huadong Ma‡ † Networking and Information.](https://reader034.fdocuments.net/reader034/viewer/2022052607/5a4d1b647f8b9ab0599af616/html5/thumbnails/13.jpg)
Simulation Results(Accuracy)
![Page 14: Dynamic Node Collaboration for Mobile Target Tracking in Wireless Camera Sensor Networks Liang Liu†,‡, Xi Zhang†, and Huadong Ma‡ † Networking and Information.](https://reader034.fdocuments.net/reader034/viewer/2022052607/5a4d1b647f8b9ab0599af616/html5/thumbnails/14.jpg)
Simulation Results(Energy)