photographic enlargement

The way using digital photos to design products was discussed with an example of modeling an electric kettle.

以一个电热水壶的三维建模为例,讨论了如何利用产品的数码相片来进行产品外观造型设计的方法,根据现有产品来进行其三维建模并提供了一个比较容易掌握、比较精确的方法。

To search an appropriate method, this paper develops on the two parts of researches which are digital photos and QuickBird image respectively.

为了探求植被覆盖信息提取的适合方法，本文分别在数码相片和QuickBird影像两种数据源尺度上开展了植被覆盖信息的提取方法研究。

An improved hybrid algorithm by using quasi Gradient Decent algorithm and spectrum selectivity is applied to the design of pure phase elements (PPE) in uniform illumination.

　利用输入输出不同的变间距采样通过汉克尔变换实现圆对称纯位相片精密化设计,并发展了准梯度下降法及频谱滤波,改进了原有的混合杂化算法。