Mares C, Barrientos B, Blanco A
Centro de Investigaciones en Óptica A. C., Loma del Bosque 115, León, Gto. Mexico.
Opt Express. 2011 Dec 5;19(25):25712-22. doi: 10.1364/OE.19.025712.
We present a method based on color encoding for measurement of transient 3D deformation in diffuse objects. The object is illuminated by structured light that consists of a fringe pattern with cyan fringes embedded in a white background. Color images are registered and information on each color channel is then separated. Surface features appear on the blue channel while fringes on the red channel. The in-plane components of displacement are calculated via digital correlation of the texture images. Likewise, the resulting fringes serve for the measuring of the out-of-plane component. As crossing of information between signals is avoided, the accuracy of the method is high. This is confirmed by a series of displacement measurements of an aluminum plate.
我们提出了一种基于颜色编码的方法，用于测量漫射物体中的瞬态三维变形。该物体由结构光照明，结构光由嵌入白色背景中的带有青色条纹的条纹图案组成。对彩色图像进行配准，然后分离每个颜色通道的信息。表面特征出现在蓝色通道上，而条纹出现在红色通道上。通过纹理图像的数字相关性计算面内位移分量。同样，所得条纹用于测量面外分量。由于避免了信号之间信息的交叉，该方法的精度很高。对铝板的一系列位移测量证实了这一点。
