雙CCD同時偏振成像系統(tǒng)及其偏振信息處理軟件系統(tǒng)
[Abstract]:The information of light wave is very rich, the technology that can detect the polarization state of the light wave of scene is called polarization imaging technology, and the polarization imaging technology of obtaining different polarization state of scene in the same time is called simultaneous polarization imaging technology. The polarization state of light radiation changes after it is reflected through the surface of the object, which is closely related to the physical properties of the reflection surface, such as material, roughness, geometry and so on. Therefore, it has been widely used in the fields of military reconnaissance, medical detection, space detection, material acceptance, meteorological science, ocean characteristic analysis and so on. Underwater target detection technology is a key technology in China's marine economic development and maritime defense technology development, but wave ripples make underwater target imaging distorted. In order to solve the problem of target distortion in airborne underwater imaging, a dual CCD simultaneous polarization imaging system (SIP-DSWP,Simultaneous Imaging Polarimetry with Double Separate Wallaston Primes) and its polarization information extraction method are studied in this paper. It lays a foundation for solving the problem of underwater target distortion in airborne underwater detection. On the basis of introducing the principle of polarization imaging and the development of simultaneous polarization imaging system, this paper mainly discusses the optical machine structure design of SIP-DSWP, and puts forward a method of polarization image processing suitable for SIP-DSWP. It includes the polarization image segmentation algorithm based on morphology and the high-precision phase correlation polarization image registration algorithm based on resampling, and calibrates the instrument matrix of SIP-DSWP system by using the partition E-P calibration method. The polarization information software processing system of SIP-DSWP system is programmed based on C language in Windows environment, and the man-machine interface of the software processing system is designed by using QT. The experimental results of polarization imaging of SIP-DSWP hardware system show that the SIP-DSWP hardware system has compact structure, good light splitting effect and adaptability to general outdoor environment. Polarization image segmentation algorithm can self-adaptively segment polarization image collected at different distances, and the precision of registration image algorithm can reach 0.1 pixels. The instrument matrix calibration method effectively improves the detection accuracy of polarization image information. The SIP-DSWP hardware system and software system constitute a whole, which realizes a series of functions, such as synchronous acquisition of polarization image and extraction of polarization information, etc. The extraction of polarization information is convenient and easy to operate.
【學位授予單位】:北京理工大學
【學位級別】:碩士
【學位授予年份】:2016
【分類號】:TP391.41;O436.3
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