Features of the Formation of Multi-view Autostereoscopic Image without Vertical Parallax

1.Introduction The reproduction systems of 3D images without using eyeglasses and other special accessories has always attracted attention and aroused great interest of developers and consumers of such equipment because of totally accurate image and method of its presentation.Such systems can be used and are already partially used in advertising,television,different devices (i.e.smartphones,tablet computers),at the exhibitions,etc.,as well as in various technical applications,training systems,simulators,etc.     

线性啁啾光纤Bragg光栅分段切趾优化

分段切趾是光纤光栅一种新的切趾改进技术。针对线性啁啾光纤Bragg分段切趾的两个重要参数：分段切趾比例和分段切趾强度进行讨论。基于数值模拟的结果,以三分段切趾为例,分析两个参数对光栅性能的影响以及进行优化的方法。     

用于CCD数码成像的自动对焦技术

为了提高自动对焦的实时性与精确性,提出了两项措施,即:利用视网膜具有空间变化分辨力的特性来确定图像处理区域;根据清晰度评价函数具有单峰曲线的特点,采用单向搜索的爬山算法来确定最佳对焦位置。该措施在快速处理图像的基础上能较为精确地找到焦点位置。     

图像清晰度的量化测量探究

针对光学实验中,用肉眼判断图像最清晰位置具有人为因素影响多、可重复性差、操作复杂等不足,提出了量化图像清晰度的解决思路,使实验数据更加可靠、准确,使实验过程更加科学、快捷。     

基于一种新的缺陷地结构的低通滤波器的设计

A novel defected ground structure （DGS） for the microstrip line is proposed in this paper. The DGS lattice has more defect parameters so that it can provide better performance than the conventional dumbbell-shaped DGS. Selectivity is improved by 97.2% with a sharpness factor of 24.6%. The method is applied to the design of a low-pass filter to confirm validity of the proposed DGS.