Data-driven templates with dictionary learning and sparse representations for photometric redshift estimation.
Joana Frontera-PonsFlorent SureauJérôme BobinMartin KilbingerPublished in: Astron. Comput. (2023)
Keyphrases
- dictionary learning
- sparse representation
- sparse coding
- image super resolution
- group sparsity
- compressive sensing
- face recognition
- signal processing
- image patches
- sparse codes
- discriminative power
- image classification
- sparsity constraints
- high dimensional data
- linear combination
- negative matrix factorization
- motion estimation
- image representation
- generative model
- random projections
- dimensionality reduction
- single image super resolution
- image data
- active learning