典型光流算法在条纹位移测量中的分辨力和测量范围

来源 :光学学报 | 被引量 : 3次 | 上传用户:chnool
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
分析了Horn-Schunck全局光流算法和Lucas-Kanade局域光流算法在条纹位移测量中的分辨力和测量范围,结果表明:当Horn-Schunck算法的相对误差和Lucas-Kanade算法的相对误差小于2%时,两种算法的相位分辨力都能够达到10~(-13)π,对应像面上的位移分辨力为1.6×10~(-12) pixel,两种算法在理论上与四步相移法的分辨力相当;在有噪声的情况下,两种算法的分辨力都达到了0.01π,对应像面上的位移分辨力为0.16 pixel;在相对误差小于2%、方均根误差小
其他文献
半导体激光已20年了。回顾20年来半导体激光的发展历程,展望未来,是很有意义的。
期刊
Although the electrospinning technique has been devoted to promoting therapeutic purposes as a drug carrier, however, there are still many fundamental problems in this area. This work focuses on a comparison of various diameter polyethersulfone (PES) elec
The scattering matrix theory has been developed to calculate the third-order nonlinear effect in sphere-graphene-slab structures. By designing structural parameters, we have demonstrated that the incident electromagnetic wave can be well confined in the g
期刊
于300 °Κ测量过CaWO4/Nd3 (Na )光激射器的波长与偏振特性, 发现同谐振腔的几何形状有关。输出波长1,0586微米的为π偏振, 而1, 0654微米的则是σ偏振。两种输出都有比较低的阈値, 且取决于谐振腔的几何因素。
期刊
期刊
The self-mixing interferometer is used to investigate the characteristics of resonant frequency of the microresonator, which is excited by a sinusoidally driven loud-speaker. The detected self-mixing signal is processed by the phase reconstruction method.
研究了四原色技术在液晶显示器中的应用,优化红、绿、蓝及黄的面积比对白点的调整,最大化提升色域和亮度,最后总结和展望了多色显示技术在液晶显示器中的应用。
期刊