# Low-cost SPAD sensing for non-line-of-sight tracking, material classification and depth imaging

> Research article (ACM Transactions on Graphics, 2021) · cited 47× · AI/ML

**Wikidata**: [openalex:W3187041650](https://www.wikidata.org/wiki/openalex:W3187041650)  
**Source**: https://4ort.xyz/entity/low-cost-spad-sensing-for-non-line-of-sight-tracking-material-classification-and-depth-imaging