NavVis’ new mapping software improves the accuracy of simultaneous localization and mapping (SLAM) technology in indoor environments. The software update will be available for users of the NavVis M3 Trolley, and will increase the accuracy of the resulting maps and point clouds. The innovative NavVis Precision SLAM technology reduces drift error and improves the SLAM accuracy. This is particularly evident in cases where complementary techniques such as loop closures cannot be deployed if, for example, the building’s layout does not allow for it. Precision SLAM even improves accuracy when SLAM anchors are used to incorporate ground control points into the mapping process.