# FRIST—flipping and rotation invariant sparsifying transform learning and applications

> Research article (Inverse Problems, 2017) · cited 49× · AI/ML

**Wikidata**: [openalex:W2963294657](https://www.wikidata.org/wiki/openalex:W2963294657)  
**Source**: https://4ort.xyz/entity/fristflipping-and-rotation-invariant-sparsifying-transform-learning-and-applications