Robust Real-Time Periodic Motion Detection, Analysis, and Applications
IEEE Transactions on Pattern Analysis and Machine Intelligence
View-Invariant Representation and Recognition of Actions
International Journal of Computer Vision
The Aware Home: A Living Laboratory for Ubiquitous Computing Research
CoBuild '99 Proceedings of the Second International Workshop on Cooperative Buildings, Integrating Information, Organization, and Architecture
MavHome: An Agent-Based Smart Home
PERCOM '03 Proceedings of the First IEEE International Conference on Pervasive Computing and Communications
Histograms of Oriented Gradients for Human Detection
CVPR '05 Proceedings of the 2005 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR'05) - Volume 1 - Volume 01
Ambient assisted-living research in carelab
interactions - Designing for seniors: innovations for graying times
Gait recognition using image self-similarity
EURASIP Journal on Applied Signal Processing
Cross-View Action Recognition from Temporal Self-similarities
ECCV '08 Proceedings of the 10th European Conference on Computer Vision: Part II
ACM Transactions on Accessible Computing (TACCESS)
The Adaptable House
Robot bedside environments for healthcare
EHAC'12/ISPRA/NANOTECHNOLOGY'12 Proceedings of the 11th WSEAS international conference on Electronics, Hardware, Wireless and Optical Communications, and proceedings of the 11th WSEAS international conference on Signal Processing, Robotics and Automation, and proceedings of the 4th WSEAS international conference on Nanotechnology
Hi-index | 0.00 |
The development of ubiquitous sensing strategies in home environments underpins the promise of adaptive architectural design, assistive robotics, and services which would support a persons ability to live independently as they age. In particular, the ability to infer the actions, behavioral patterns and preferences of the individual from sensor data is key to effective design of such components for aging in place. Very often, sensing for recognition of human activity utilizes vision based sensors. However, it has been seen that many home users find the presence of cameras to be invasive. Hence, we seek to develop a sensing system which uses non-vision based sensors to discreetly discern occupant position, activity, and user context in the home environment. This paper describes initial experimentation to determine optimal sensor placement for detection of specific activities. Three essential reaching motions typical of individuals lying in bed are examined. Action data was collected using IR motion sensors positioned at an array of vantage points on a virtual sphere surrounding the motion space. Histograms of Oriented Gradients (HOGs) are used to extract motion representations from Self-Similarity Matrices (SSMs) for each action. It is shown that mean HOGs can serve as exemplars and allow us to choose a preferred sensor position for each motion type. Using these exemplars, motions can be classified with a promising level of accuracy ( 75% for our data set), with improved outcomes observed through aggregation of sensor readings.