皮肤表面测量中空间编码结构光模式的选择

Pattern selection of spatial multiplexing coded structured light for skin surface measure

分析了适用于皮肤表面测量的空间编码结构光模式的选择问题。将典型的7种空间编码结构光分别投射到健康皮肤和有色斑的皮肤上,采用直方图与局部门限分割方法,对数码相机采集的不同编码结构光的投影图像进行区域分割和颜色校正。实验结果表明:有黑色间隔的二维M-阵列编码结构光,受皮肤色泽变化的影响较小,色块分割和颜色校正效果较好,适合于皮肤表面的结构光测量。

The pattern selection of spatial multiplexing coded structured light （CTL） is analyzed for skin surface measurement. Seven kind of classic spatial multiplexing CTL patterns are projected onto normal skin and stained skin and recoded by a CCD camera. The projected images are processed by local threshold segmentation and color adjustment with color histogram. Analysis results show that Marrays CTL, separated by black gaps, is appropriate for skin surface measure for it is less affected by variation of skin pigment and has lower error rate of image segmentation.