Performing super-resolution of a depth image using the guidance from an RGB
image is a problem that concerns several fields, such as robotics, medical
imaging, and remote sensing. While deep learning methods have achieved good
results in this problem, recent work highlighted the value of combining modern
methods with more formal frameworks. In this work, we propose a novel approach
which combines guided anisotropic diffusion with a deep convolutional network
and advances the state of the art for guided depth super-resolution. The edge
transferring/enhancing properties of the diffusion are boosted by the
contextual reasoning capabilities of modern networks, and a strict adjustment
step guarantees perfect adherence to the source image. We achieve unprecedented
results in three commonly used benchmarks for guided depth super-resolution.
The performance gain compared to other methods is the largest at larger scales,
such as x32 scaling. Code
(this https URL) for the proposed method
is available to promote reproducibility of our results.

本文提出了一种新颖的方法，将有向各向异性扩散技术和深度卷积神经网络相结合，实现了超分辨率深度图像的指导。该方法以前人的研究为基础，在边缘转移 / 增强性，与现代网络的上下文推理能力和严格的校准步骤的保证下，在三个常用的超分辨率指导深度准则下展现了前所未有的成果。