Real-time Indoor Scene Reconstruction with RGBD and Inertial Input

Abstract

Camera motion estimation is a key technique for 3D scene reconstruction. Previous works usually assume slow camera motions, which limit the usage in many real cases. We propose an end-to-end 3D reconstruction system which combines color, depth and inertial measurements to achieve robust reconstruction with fast sensor motions. Our framework utilizes extended Kalman filter to fuse the three kinds of information and involve an iterative method to jointly optimize feature correspondences, camera poses and scene geometry. We also propose a novel geometry-aware patch deformation technique to adapt the feature appearance in image domain, leading to a more accurate feature matching under fast camera motions. Experiments show that our patch deformation method improves the accuracy of feature tracking, and our 3D reconstruction framework outperforms the state-of-the-art solutions under fast camera motions.