# Universal SAR and optical image registration via a novel SIFT framework based on nonlinear diffusion and a polar spatial-frequency descriptor

> Research article (ISPRS Journal of Photogrammetry and Remote Sensing, 2020) · cited 75× · AI/ML

**Wikidata**: [openalex:W3098156937](https://www.wikidata.org/wiki/openalex:W3098156937)  
**Source**: https://4ort.xyz/entity/universal-sar-and-optical-image-registration-via-a-novel-sift-framework-based-on-nonlinear-diffusion-and-a-polar-spatial