灰度传递函数分析，(a)高斯传递模型，(b)和(c)分别是理想编码图经过结构光系统前后的灰度分布，(d)和(e)分别是编码图和采集图。-Gray transfer function analysis, (a) Gaussian transfer model, (b) and (c) are the ideal coding picture through structured light system before and after gray level, (d) and (e) are coded map and chart collection .