| Autor: |
Fu, Rongguo, Su, Chula, Li, Mengxi, Guo, Yiliang, Cheng, Yu, Chang, Benkang |
| Zdroj: |
Proceedings of SPIE; February 2011, Vol. 7912 Issue: 1 p79121Z-79121Z-8, 712098p |
| Abstrakt: |
This article describes the generation of the laser facula, and analyzes the energy characteristics of the facula. A testing device is designed to measure the facula of the laser light in the far distance, and the system can collect and analyze the laser facula. The testing system sets by the laser ranger finder, thousands of meters away from the target. A near infrared CCD (Charge Coupled Device) camera of high sensitivity is used to collect the facula of 1.06m laser. Add a filter of 1.06m before the CCD camera to get more accurate infrared information. A beam of the laser ranger finder shoots to the target. A infrared CCD and the laser ranger finder is synchronizing triggered. For real-time observation of the background, the system use another ordinary CCD and telephoto lenses. A series of laser facula which is collected by the infrared CCD is stored into computer as the form of bitmaps. The testing device uses median filter to denoise the facula pictures and use image processing to analyze the gray-scale of facula, thus the device can get the intensity distribution, the centroid position and its variation with the spot. The device uses image fusion to realize the background integration of white-light CCD and infrared CCD images. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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