# Spatial–spectral sparse deep learning combined with a freeform lens enables extreme depth-of-field hyperspectral imaging

> Research article (Photonics Research, 2025) · cited 10× · AI/ML

**Wikidata**: [openalex:W4406156952](https://www.wikidata.org/wiki/openalex:W4406156952)  
**Source**: https://4ort.xyz/entity/spatialspectral-sparse-deep-learning-combined-with-a-freeform-lens-enables-extreme-depth-of-field-hyperspectral-imaging