This seems to fit into the genealogy of KinectFusion, ElasticFusion, BundleFusion, etc.
https://www.microsoft.com/en-us/research/wp-content/uploads/... https://www.imperial.ac.uk/dyson-robotics-lab/downloads/elas... https://graphics.stanford.edu/projects/bundlefusion/
Very impressive work. I have not seen any use cases for online 3D reconstruction unfortunately. 6D.ai made terrific progress in this tech but also could not find great use cases for online reconstruction and ended up having to sell to Niantic.
Seems like what people want, if they want 3D reconstruction, is extremely high-fidelity scans (a la Matterport) and are willing to wait for the model. Unfortunately TSDF approach create a "slimey" end look which isn't usually what people are after if they want an accurate 3D reconstruction.
It SEEMS like online 3D reconstruction would be helpful, but I have yet to see a use case for "online"...