Automatic Interaction and Activity Recognition from Videos of Human Manual Demonstrations with Application to Anomaly Detection

• URL: http://arxiv.org/abs/2304.09789v2
• Date: Fri, 7 Jul 2023 08:31:03 GMT
• Title: Automatic Interaction and Activity Recognition from Videos of Human Manual Demonstrations with Application to Anomaly Detection
• Authors: Elena Merlo (1, 2), Marta Lagomarsino (1, 3), Edoardo Lamon (1, 4), Arash Ajoudani (1) ((1) Human-Robot Interfaces and Interaction Laboratory, Istituto Italiano di Tecnologia, Genoa, Italy, (2) Dept. of Informatics, Bioengineering, Robotics, and Systems Engineering, University of Genoa, Genoa, Italy, (3) Dept. of Electronics, Information and Bioengineering, Politecnico di Milano, Milan, Italy, (4) Dept. of Information Engineering and Computer Science, University of Trento, Trento, Italy)
• Abstract summary: This paper exploits Scene Graphs to extract key interaction features from image sequences while simultaneously motion patterns and context. The method introduces event-based automatic video segmentation and clustering, which allow for the grouping of similar events and detect if a monitored activity is executed correctly.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: This paper presents a new method to describe spatio-temporal relations between objects and hands, to recognize both interactions and activities within video demonstrations of manual tasks. The approach exploits Scene Graphs to extract key interaction features from image sequences while simultaneously encoding motion patterns and context. Additionally, the method introduces event-based automatic video segmentation and clustering, which allow for the grouping of similar events and detect if a monitored activity is executed correctly. The effectiveness of the approach was demonstrated in two multi-subject experiments, showing the ability to recognize and cluster hand-object and object-object interactions without prior knowledge of the activity, as well as matching the same activity performed by different subjects.

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