RGBD-Net: Predicting color and depth images for novel views synthesis

Published in arXiv, 2020

Abstract:

We address the problem of novel view synthesis from an unstructured set of reference images. A new method called RGBD-Net is proposed to predict the depth map and the color images at the target pose in a multi-scale manner. The reference views are warped to the target pose to obtain multi-scale plane sweep volumes, which are then passed to our first module, a hierarchical depth regression network which predicts the depth map of the novel view. Second, a depth-aware generator network refines the warped novel views and renders the final target image. These two networks can be trained with or without depth supervision. In experimental evaluation, RGBD-Net not only produces novel views with higher quality than the previous state-of-the-art methods, but also the obtained depth maps enable reconstruction of more accurate 3D point clouds than the existing multi-view stereo methods. The results indicate that RGBD-Net generalizes well to previously unseen data.

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Overview of RGBD-Net:

NovelDepth network:

Depth-aware refinement network

Quantiative and Qualitative results on view synthesis

Qualitative results on 3D reconstruction

More qualitative results on view synthesis

More qualitative results on 3D pointcloud reconstruction