# A heterogeneous 3D map-based place recognition solution using virtual LiDAR and a polar grid height coding image descriptor

> Research article (ISPRS Journal of Photogrammetry and Remote Sensing, 2021) · cited 25× · AI/ML

**Wikidata**: [openalex:W3212228888](https://www.wikidata.org/wiki/openalex:W3212228888)  
**Source**: https://4ort.xyz/entity/a-heterogeneous-3d-map-based-place-recognition-solution-using-virtual-lidar-and-a-polar-grid-height-coding-image-descrip