Illumination Decomposition

Illumination decomposition aims to separate the different lighting components contributing to an image or 3D scene, such as direct, ambient, and complex lighting, enabling realistic relighting and novel view synthesis. Current research focuses on developing methods that leverage Gaussian splatting and neural radiance fields, often incorporating physically-based rendering and differentiable rendering techniques, along with diffusion priors and parametric light source representations to improve accuracy and efficiency. This disentanglement of lighting and geometry has significant implications for various applications, including computer graphics, image editing, remote sensing, and 3D modeling, by allowing for more realistic and controllable manipulation of light and materials.