首先，对PDF417条码的编码模式及编码原理进行了较详细的论述，简要介绍了条形码的错误检测和纠正方法；引入了对称DES加密技术与非对称RSA加密技术，对二维条形码进行信息加密的分析与设计，从而生成加密的二维条形码。 其次，对采集到的加密条形码图像进行图像预处理。由于采集的条形码图像，存在着图像倾斜和边缘模糊问题，

This paper proposes a new method to weight subspaces in feature groups and individual features for clustering high-dimensional data. In this method, the features of high-dimensional data are divided into feature groups, based on their natural characteristics. Two types of weights are introduced to the clustering process to simultaneously identify the importance of feature groups and individual features in each cluster. A new optimization model is given to define the optimization process and a ne

This paper presents a Crotch Ensemble classification model for high dimensional data. A Crotch Ensemble is obtained from a decision cluster tree built by calling a clustering algorithm recursively. A crotch is an inner node of the tree together with its direct children. If the children of a crotch h

A novel pre-collimating scheme in laser-focused chromium (Cr) atomic deposition is presented. It consists of three apertures, which are one main pre-collimating aperture at centre and two probing apertures with uniform dimension at both sides of the central one. The calculations show that the Cr ato

In this Letter, we propose a novel three-dimensional (3D) color microscopy for microorganisms under photonstarved conditions using photon counting integral imaging and Bayesian estimation with adaptive priori information. In photon counting integral imaging, 3D images can be visualized using maximum

本书介绍了一些在2000年以前的相位解包裹算法。在多篇现代的相位三维扫描技术论文中提及，可见其在整个相位测量中的地位和经典。 目录： 1、相位展开综述 2、线积分，误差，以及二维相位展开 3、相位数据，质量图，蒙版法，滤波操作 4、路径跟踪法 5、最小范数法 6、比较与结论 由于图书年代久远，是20年前的技术了。本着追本溯源的精神，过去的思想也许会对今天的创造有所贡献，特此分享。 算法的实现代码也附在资源中，也可自行去网站下载。ftp://ftp.wiley.com/public/sci_tech_med/phase_unwrapping/

Graham的书，对一维两相流中常用的各种模型 进行了介绍

Two Dimensional Phase Unwrapping Theory Algorithms and Software，扫描文档，清晰度一般。

在学习代数学之余，值得一看的代数学书籍。里面介绍了更为丰富的代数学概念和结论。

Two Dimensional Phase Unwrapping Theory Algorithms and Software，扫描文档，清晰度一般。