Efficient Image-Based Rendering Method Using Spherical Gaussian

Abstract

Image-based rendering methods have been widely used to render realistic images of scenes illuminated by real-world, complex lighting. Recent advances on image-based rendering methods have revealed that spherical Gaussian functions have several nice properties for rendering and are suited to represent all-frequency signals compactly and accurately such as complex environment lighting and highly glossy BRDFs. This chapter introduces spherical Gaussians for efficient image-based rendering methods.