Polarization visualization for low-irradiance regions by perceptually uniform color space

Abstract

Currently, polarization visualization strategies are accomplished by mapping polarization information into a perceptually uniform color appearance model CAM02-UCS. However, the deviation of the CAM02-UCS space from the lightness prediction results in an inaccurate match between the polarization information and the perceptual information. In this paper, we propose a novel polarization visualization strategy based on the perceptual uniform space Jzazbz. The polarization visualization be completed by placing the polarization information into the lightness Jz, colorfulness Cz and hue angle hz channels of the Jzazbz space. The experimental results show that the proposed method can significantly improve the lightness of the low irradiance and high polarization region, hence more polarization information can be sensed by human visual system.

Keywords

• Polarization visualization
• Perceptually uniform space
• Lightness prediction
• Low irradiance