# Patch-Based Uncalibrated Photometric Stereo Under Natural Illumination

> Research article (IEEE Transactions on Pattern Analysis and Machine Intelligence, 2021) · cited 19× · AI/ML

**Wikidata**: [openalex:W3200111348](https://www.wikidata.org/wiki/openalex:W3200111348)  
**Source**: https://4ort.xyz/entity/patch-based-uncalibrated-photometric-stereo-under-natural-illumination