基于衍射机制数码成像中场曲标定及其像素像点的校正

The calibration of field curvature and the correction of pixel image point in digital imaging based on diffraction mechanism

基于衍射成像机制分析探讨了场曲的成因与特征,针对数码成像中感光芯片的结构与工作原理,提出了数码成像时场曲的标定及其像素校正的设想和方法,模拟实验表明这种方法的可行性,有助于实现数码成像时场曲自动标定及其像素校正,还有利于改进调控景深、快门、光圈以及感光度与白平衡等关键技术。

Based on diffraction imaging mechanism the causes and characteristics of the field curve is analyzed, aimed at structure and working principle of photosensitive chip of digital imaging, the idea and method of pixel-level calibration and correc-tion for digital imaging is proposed ,the simulation experiment shows that this method is feasible and helpful to achieve the pix-el-level automatic calibration and correction of field curvature for digital imaging, and conducive to improve the regulation of depth of field, shutter, aperture and ISO and the key technology such as white balance.