Through coupled-mode theory,the simulation of the coupling properties of the slanted grating is given to optimize its tilt angle.
提出了一种基于斜光栅辅助的非对称耦合器型光分插复用器。
First,the outer edge of the fabric sample is identified;next,the contour line from the panoramic raster stripes image is extracted;then positioning and computing the height of raster stripes to obtain the 3D coordinates of sampling points in raster stripes;finally,the 3D fabric drapability image of the specimen is reconstructed using bicub.
首先识别出试样的边缘轮廓,然后从全景光栅图像中提取等高线信息,对光栅条纹进行定位,计算出光栅条纹所在位置的空间高度,从而得到试样上光栅取样点的三维坐标数值,再利用双三次贝赛尔曲面重建试样悬垂形态的三维图像。
The stereo-photographing technology,which uses line grating and reverts to stereo image,plays a special role in 3-dim display.
立体照相采用线条光栅还原立体图像,在三维显示技术中具有独特的作用。