  Capturing more information, e.g. geometry and material, using optical cameras
can greatly help the perception and understanding of complex scenes. This paper
proposes a novel method to capture the spectral and light field information
simultaneously. By using a delicately designed chromatic aberration enlarged
camera, the spectral-varying slices at different depths of the scene can be
easily captured. Afterwards, the multispectral focal stack, which is composed
of a stack of multispectral slice images focusing on different depths, can be
recovered from the spectral-varying slices by using a Local Linear
Transformation (LLT) based algorithm. The experiments verify the effectiveness
of the proposed method.
