基于链接点的三维浏览算法的设计与实现

提出了一种新的照片集三维浏览方法。不仅让用户在浏览照片集时有较好的三维浏览效果,还使用户获取两张照片之间潜在的三维空间几何信息。该方法不需要复杂的三维建模过程,而是通过计算出照片之间的四对链接点。并根据这些链接点构造出变形矩阵。然后利用图像变形技术绘制出双层过渡效果,由此生成中间视图。通过实验分析表明方法具有良好的平滑三维过渡效果。     

Performance and Reliability of Multilayer Silicon Nanocrystal Nonvolatile Memory

Nonvolatile memories (NVMs) with triple layers of silicon nanocrystals were fabricated with conventional CMOS technology.This paper explores the program/erase performance and reliability of NVMs with three layers of nanocrystals.The results indicate that the nanocrystals in the triple-layer nanocrystal NVM (NCNVM) are difficult to fully charge during the programming process.The programming speed of the triple-layer NCNVMs is quicker than that of single-layer NCNVMs,which means that the second and third layers of nanocrystals in the triple-layer NCNVM affect the charge of the first layer nanocrystals.Reliability tests show that the memory window has little degradation after 1×104 cycles.     

小波变换在图像边缘检测中的应用

目的 研究一种新的提取图像边缘特征的方法。方法 依据图象的多分辨率小波分解及其所表现出的多尺度特性、局部化分析特性及方向选择性等特点,通过二进尺度下小波变换局部极大值的检测提取图象边缘特征,结果 利用此方法在计算机上对２５６×２５６×８ｂｉｔｓ／像素的Ｌｅｎａ图像做了边缘提取,得到不同尺度下的连续、光滑、单像素宽的边缘链图象,结论 边缘提取准确,表明这种特征提取方法是有效、可行的。