CCD摄像法测量激光远场光斑中图像校正和能量修正算法研究

介绍了CCD摄像法测量激光远场光斑的工作原理。依据CCD摄像机拍摄激光远场光斑的倾斜角度，在处理算法中利用透视投影原理，将采集光斑的畸变图像进行了校正；针对CCD摄像法摄取的漫反射激光光斑图像，构建了朗伯漫反射模型，利用朗伯修正算法将漫反射激光光斑的能量密度修正到直射激光光斑的能量密度，推导出了具体的修正计算公式。通过实际应用，验证了该算法在激光远场光斑测量中的有效性。

Research of Gamma Correction and Energy Revision Algorithm in CCD Photograph Law Survey Laser Distant Field Facula

It is introduced that the CCD photograph law survey laser distant field facula principle of work in this article. Based on the CCD camera photography laser distant field facula’s angle of tilt,the perspective projection principle is used in the processing algorithm,the facula’s aberrance image will be gathered to carry on the adjustment.The Lambert diffuse reflection model has been constructed in view of the CCD photograph law ingestion’s diffuse reflection laser facula image,the algorithm using Lambert is revised to revise the diffuse reflection laser facula energy density to the perpendicular incidence laser facula energy density,the concrete correction computing formula is inferred.Through the practical application,this algorithm has been confirmed in the laser distant field facula survey validity.