1. A method of coding light ray information including information about a position on a predetermined plane and information about an incident angle to the surface when a ray of light from a subject enters the surface, comprising: dividing the light ray information into two or more processing unit blocks; executing a first coding process to obtain first block unit information composing first image information about the subject by coding each of the processing unit blocks; and executing a second coding process to obtain second block unit information composing second image information different types from the first image information by coding each of the processing unit blocks.