Depth Normalized Stable View Synthesis

Novel view synthesis (NVS) aims to synthesize photo-realistic images depicting a scene by utilizing existing source images. The synthesized images are supposed to be as close as possible to the scene content. We present Deep Normalized Stable View Synthesis (DNSVS), an NVS method for large-scale scenes based on the pipeline of Stable View Synthesis (SVS). SVS combines neural networks with the 3D scene representation obtained from structure-from-motion and multi-view stereo, where the view rays corresponding to each surface point of the scene representation and the source view feature vector together yield a value of each pixel in the target view. However, it weakens geometric information in the refinement stage, resulting in blur and artifacts in novel views. To address this, we propose DNSVS that leverages the depth map to enhance the rendering process via a normalization approach. The proposed method is evaluated on the Tanks and Temples dataset, as well as the FVS dataset. The average Learned Perceptual Image Patch Similarity (LPIPS) of our results is better than state-of-the-art NVS methods by 0.12%, indicating the superiority of our method.