Polarization and solar altitude correlation analysis and application in object detection

Abstract

Complicated optical scenes generally exist on the water surface. The noise originated from the light reflection seriously blocks the performance of the object detection method. This paper analyzes the correlation between the incident light angle and the flare noise, the relation between the solar altitude and the polarization state of the reflected light. Further, the correlation between the various imaging factors, such as the imaging time, the imaging angle of view, the polarization direction and the polarization state, is adjusted and optimized by the polarization imaging experiment. According to the experimental results, our polarization imaging method has good capability to suppress the noises generated by the light reflection, improving the accuracy of the object detection results.