# Image super-resolution via sparse representation over multiple learned dictionaries based on edge sharpness and gradient phase angle

> Research article (Signal Image and Video Processing, 2015) · cited 17× · AI/ML

**Wikidata**: [openalex:W2217168746](https://www.wikidata.org/wiki/openalex:W2217168746)  
**Source**: https://4ort.xyz/entity/image-super-resolution-via-sparse-representation-over-multiple-learned-dictionaries-based-on-edge-sharpness-and-gradient