Patent ID: 11972596
Assignee: CHANGCHUN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H  Y | IPC G  H

Claim 3:
4. The method of claim 1, wherein when the long-wave infrared imaging unit is selected:
a laser passes through a long-wave infrared filter, a liquid crystal phase retarder V, a liquid crystal phase retarder VI, and a long-wave infrared camera in sequence,
the intensity images and the 0-degree, 45-degree, 90-degree, and 135-degree linear polarization and circular polarization images can be obtained by adjusting the liquid crystal phase retarder V and the liquid crystal phase retarder VI, and
the information processing subsystem selects the intensity images or the polarization images and transmits the intensity images or the polarization images to the image processing subsystem.