Region-based parametric motion segmentation using color information
Graphical Models and Image Processing
Real-Time American Sign Language Recognition Using Desk and Wearable Computer Based Video
IEEE Transactions on Pattern Analysis and Machine Intelligence
Parametric Hidden Markov Models for Gesture Recognition
IEEE Transactions on Pattern Analysis and Machine Intelligence
Special Section on Video Surveillance
IEEE Transactions on Pattern Analysis and Machine Intelligence
Learning Patterns of Activity Using Real-Time Tracking
IEEE Transactions on Pattern Analysis and Machine Intelligence
Detecting Salient Motion by Accumulating Directionally-Consistent Flow
IEEE Transactions on Pattern Analysis and Machine Intelligence
Automated Analysis of Nursing Home Observations
IEEE Pervasive Computing
A survey of advances in vision-based human motion capture and analysis
Computer Vision and Image Understanding - Special issue on modeling people: Vision-based understanding of a person's shape, appearance, movement, and behaviour
Generic temporal segmentation of cyclic human motion
Pattern Recognition
Improved background subtraction techniques for security in video applications
ASID'09 Proceedings of the 3rd international conference on Anti-Counterfeiting, security, and identification in communication
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We explore a novel motion feature as the appropriate basis for classifying or describing a number of fine motor human activities. Our approach not only estimates motion directions and magnitudes in different image regions, but also provides accurate segmentation of moving regions. Through a combination of motion segmentation and region tracking techniques, while filtering for temporal consistency, we achieve a balance between accuracy and reliability of motion feature extraction. To identify specific activities, we characterize the dominant directions of relative motions. Experimental results show that this approach to motion feature analysis could be successful in assisting caregivers at a nursing home in assessments of patient's activity levels over time.