Department of Multimedia Engineering, Kaunas University of Technology, 51368 Kaunas, Lithuania.
Faculty of Applied Mathematics, Silesian University of Technology, 44-100 Gliwice, Poland.
Sensors (Basel). 2021 Jun 8;21(12):3945. doi: 10.3390/s21123945.
Majority of current research focuses on a single static object reconstruction from a given pointcloud. However, the existing approaches are not applicable to real world applications such as dynamic and morphing scene reconstruction. To solve this, we propose a novel two-tiered deep neural network architecture, which is capable of reconstructing self-obstructed human-like morphing shapes from a depth frame in conjunction with cameras intrinsic parameters. The tests were performed using on custom dataset generated using a combination of AMASS and MoVi datasets. The proposed network achieved Jaccards' Index of 0.7907 for the first tier, which is used to extract region of interest from the point cloud. The second tier of the network has achieved Earth Mover's distance of 0.0256 and Chamfer distance of 0.276, indicating good experimental results. Further, subjective reconstruction results inspection shows strong predictive capabilities of the network, with the solution being able to reconstruct limb positions from very few object details.
目前的研究大多集中在从给定的点云中重建单个静态物体。然而,现有的方法不适用于动态和变形场景的重建等实际应用。为了解决这个问题,我们提出了一种新的双层深度神经网络架构,能够从深度帧中结合相机固有参数重建自遮挡的类人变形形状。该网络在使用 AMASS 和 MoVi 数据集组合生成的自定义数据集上进行了测试。所提出的网络在用于从点云中提取感兴趣区域的第一层达到了 0.7907 的杰卡德指数。网络的第二层达到了 0.0256 的地球移动距离和 0.276 的 Chamfer 距离,这表明了较好的实验结果。此外,主观的重建结果检验表明网络具有很强的预测能力,该解决方案能够从非常少的物体细节中重建肢体位置。