# Lensfree auto-focusing imaging using nuclear norm of gradient

> Research article (Optics and Lasers in Engineering, 2022) · cited 33× · AI/ML

**Wikidata**: [openalex:W4224305049](https://www.wikidata.org/wiki/openalex:W4224305049)  
**Source**: https://4ort.xyz/entity/lensfree-auto-focusing-imaging-using-nuclear-norm-of-gradient