Figure1. Comparisonbetweendepth-based3Dreconstruction methods and the proposed method. In depth-based methods, key-frame depths are estimated separately from each key frame, and later fused into a TSDF volume. In the proposed method, the TSDF volume is directly predicted with all the key frames in a local window. This design leads to a much more coherent recon- struction and real-time speed.