相机响应函数标定算法研究进展

高动态范围成像技术能够避免因为拍摄方向如逆光和曝光量的不同而使图像存在亮度和色差影响真实场景的信息采集,有利于复杂环境下获得更高的成像质量,因此被广泛应用于模式识别、智能交通系统、遥感遥测、军事监视侦察等众多领域,具有重要的研究价值。相机响应函数的标定是高动态范围成像技术的关键步骤,能够获得真实场景的辐照度与获得图像像素值之间的映射关系,从而通过该映射关系获得拍摄的真实场景的高动态范围图像。文章对目前现有的相机响应函数标定算法进行分类总结,可为相机响应函数标定算法的研究思路与方法提供借鉴。Abstract:关键词:Key words:

Research progress of camera response function calibration

High dynamic range imaging technique can avoid the influence of shooting direction such as backlight or the different exposures,which makes for high quality imaging under the complex environment,so it is widely used in pattern recognition,intelligent transportation system,remote sensing,military surveillance and other research fields and has important research value.Camera response function calibration is the key of the high dynamic range imaging,and it can establish the mapping between real scene irradiance and image pixel values.High dynamic range image of real scene can be acquired by the mapping.The existing camera response function calibration algorithms are classified and summarized,the development direction is put forward,which provides references for the further research.