# AG3line: Active grouping and geometry-gradient combined validation for fast line segment extraction

> Research article (Pattern Recognition, 2021) · cited 25× · AI/ML

**Wikidata**: [openalex:W3123089514](https://www.wikidata.org/wiki/openalex:W3123089514)  
**Source**: https://4ort.xyz/entity/ag3line-active-grouping-and-geometry-gradient-combined-validation-for-fast-line-segment-extraction