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Progress Report: Week 6 Alvaro Velasquez - PowerPoint PPT Presentation
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Progress Report: Week 6 Alvaro Velasquez. Recap. Overlapping, overcomplete dictionary. Heat kernel affinity matrix. Graph Regularization term. Max Voting scheme. Sparsity: 97.47% Reconstruction error: 0.6667% Previous framework outlier rate: 31.86% Current framework outlier rate: 1.65%.
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Alvaro Velasquez
Recap
- Overlapping, overcomplete dictionary.
- Heat kernel affinity matrix.
- Graph Regularization term.
- Max Voting scheme.
- Sparsity: 97.47%
- Reconstruction error: 0.6667%
- Previous framework outlier rate: 31.86%
- Current framework outlier rate: 1.65%
Current Work
- Divide image volume into cuboids and vectorize them.
- Learn a dictionary of cuboids.
- Calculate sparse coefficient matrix of temporal blocks of cuboids using graph regularization.
- Cluster vectors of the sparse coefficient matrix using k-means.
- Display cluster centers on video.
