Affine-Invariant Feature Extraction for Activity Recognition
| Autor: | Gerald Krell, Samy Sadek, Ayoub Al-Hamadi, Bernd Michaelis |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Article Subject
Computer science business.industry Feature extraction Pattern recognition Image (mathematics) Moment (mathematics) Activity recognition ComputingMethodologies_PATTERNRECOGNITION Feature (machine learning) Benchmark (computing) Artificial intelligence Affine transformation Representation (mathematics) business |
| Zdroj: | ISRN Machine Vision. |
| DOI: | 10.1155/2013/215195 |
| Popis: | We propose an innovative approach for human activity recognition based on affine-invariant shape representation and SVM-based feature classification. In this approach, a compact computationally efficient affine-invariant representation of action shapes is developed by using affine moment invariants. Dynamic affine invariants are derived from the 3D spatiotemporal action volume and the average image created from the 3D volume and classified by an SVM classifier. On two standard benchmark action datasets (KTH and Weizmann datasets), the approach yields promising results that compare favorably with those previously reported in the literature, while maintaining real-time performance. |
| Databáze: | OpenAIRE |
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