We propose a dense neural simultaneous localization and mapping (SLAM)
approach for monocular RGBD input which anchors the features of a neural scene
representation in a point cloud that is iteratively generated in an
input-dependent data-driven manner. We demonstrate that both tracking and
mapping can be performed with the same point-based neural scene representation
by minimizing an RGBD-based re-rendering loss. In contrast to recent dense
neural SLAM methods which anchor the scene features in a sparse grid, our
point-based approach allows dynamically adapting the anchor point density to
the information density of the input. This strategy reduces runtime and memory
usage in regions with fewer details and dedicates higher point density to
resolve fine details. Our approach performs either better or competitive to
existing dense neural RGBD SLAM methods in tracking, mapping and rendering
accuracy on the Replica, TUM-RGBD and ScanNet datasets. The source code is
available at this https URL

本文提出了一种基于密集神经算法的同步定位与建图方法，使用深度学习生成的点云来锚定神经场景的特征，通过最小化基于 RGBD 的重新渲染损失，实现对跟踪和地图绘制的同时处理，通过在信息密度低的区域减少运行时间和内存使用，并将更高的点密度分配给解决更细节问题。在 Replica，TUM-RGBD 和 ScanNet 数据集上相对于现有的神经 RGBD SLAM 方法获得了更好或相似的跟踪，地图和渲染准确性。