High resolution depth image recovery algorithm using grayscale image

Abstract

This paper proposes a depth image recovery algorithm which recovers depth images using grayscale images and low resolution depth images. Based on a image colorization technique, a depth value image recovery problem is formulated as a convex quadratic optimization problem, and a fast depth image recovery algorithm is proposed. Experimental results show that the proposed algorithm recovers a high resolution depth image from a very low resolution depth image effectively.