# From Intensity Profile to Surface Normal: Photometric Stereo for Unknown Light Sources and Isotropic Reflectances

> Research article (IEEE Transactions on Pattern Analysis and Machine Intelligence, 2015) · cited 25× · AI/ML

**Wikidata**: [openalex:W2125893760](https://www.wikidata.org/wiki/openalex:W2125893760)  
**Source**: https://4ort.xyz/entity/from-intensity-profile-to-surface-normal-photometric-stereo-for-unknown-light-sources-and-isotropic-reflectances