a) Frame 400 (b) Frame 700 (c) Frame 900Figure 1: A series of 3 frames illustrating the recognition, tracking and mapping capabilities of MaskFusion. The first row highlights the system's output: A reconstruction of the background (white), keyboard (orange), clock (yellow), sports ball (blue), teddy-bear (green) and spray-bottle (brown). While the camera was in motion during the whole sequence, the bottle and the teddy started moving from frame 500 and 690 onwards, respectively. Note that MaskFusion explicitly avoided to reconstruct geometry related to the person holding the objects. The second row shows the input RGBD frames and semantic masks produced by the segmentation neural network as an overlay. ABSTRACTWe present MaskFusion, a real-time, object-aware, semantic and dynamic RGB-D SLAM system that goes beyond traditional systems which output a purely geometric map of a static scene. MaskFusion recognizes, segments and assigns semantic class labels to different objects in the scene, while tracking and reconstructing them even when they move independently from the camera. As an RGB-D camera scans a cluttered scene, image-based instance-level semantic segmentation creates semantic object masks that enable realtime object recognition and the creation of an object-level representation for the world map. Unlike previous recognition-based SLAM systems, MaskFusion does not require known models of the objects it can recognize, and can deal with multiple independent motions. MaskFusion takes full advantage of using instance-level semantic segmentation to enable semantic labels to be fused into an object-aware map, unlike recent semantics enabled SLAM systems that perform voxel-level semantic segmentation. We show augmented-reality applications that demonstrate the unique features * of the map output by MaskFusion: instance-aware, semantic and dynamic. Code will be made available ‡ .
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