Motion estimation of surrounding objects is indispensable to any mobile machinery. The paper proposes a method to solve the estimation and reconstruction problem of dynamic objects with a mono camera. Using the relative camera motion and detected rigidly moving objects on the image, we estimate their movement up to a scale factor. Utilization priors about their moving direction are used to estimate the transformation, which maps the 3D object from the previous frame to the actual one. Our two-frame method works twice the speed or more as other methods using three frames or more for the estimation, and we do this without any constraints. We evaluate our method on various traffic scenarios of different autonomous driving datasets.

Simultaneous Localization and Mapping is widespread in both robotics and autonomous driving. This paper proposes a novel method to identify changes in maps constructed by SLAM algorithms without feature-to-feature comparison. We use ICP-like algorithms to match frames and pose graph optimization to solve the SLAM problem. Finally, we analyze the residuals to localize possible alterations of the map. The concept was tested with 2D LIDAR SLAM problems in simulated and real-life cases.

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