Information processing apparatus, information processing method, and calibration apparatus

An information processing method, comprising:

• storing, by a memory, a plurality of parameters;
• acquiring, by a processor, a polarization image from an image sensor that images a light source using a lens;
• generating, by the processor, polarization state information based on the polarization image, wherein the polarization state information indicates a polarization state of light from the light source;
• and
• correcting, by the processor, a change in the polarization state of the light in the polarization image, wherein
• the change in the polarization state of the light is due to the lens,
• the correction of the change in the polarization state is based on the stored plurality of parameters, and
• the stored plurality of parameters is related to the change in the polarization state of the light due to the lens.

A non-transitory computer-readable medium having stored thereon, computer-executable instructions that, when executed by a processor, cause the processor to execute operations, the operations comprising:

• storing a plurality of parameters is stored in a memory;
• acquiring, from an image sensor that images a light source using a lens, a polarization image;
• generating polarization state information based on the polarization image, wherein the polarization state information indicates a polarization state of light from the light source;
• and
• correcting a change in the polarization state of the light in the polarization image, wherein
• the change in the polarization state of the light is due to the lens,
• the correction of the change in the polarization state is based on the stored plurality of parameters, and
• the stored plurality of parameters is related to the change in the polarization state of the light due to the lens.