基于GIS技术的军用地图控件的设计

GIS在现代军事、国防和现代工业中应用领域不断扩大，地图在现代战争和工业应用中也是非常重要，而控件技术是现在发展迅猛的新技术。本文根据笔者开发军用地图控件的实践，主要介绍了将GIS技术应用到军事地图领域、设计军用地图控件的一种方案。同时，分析了军用电子地图的功能，讨论了研究军用电子地图的必要性和可行性。     

基于ARM的嵌入式软件系统平台实现

ARM广泛应用于嵌入式处理领域,AT91RM9200是基于ARM920T构建的处理器芯片,该芯片支持片内引导和片外引导2种方式,通过片内引导完成U-Boot在目标平台的加载和运行。以U-Boot为基础,完成了VxWorks在目标平台上的移植和运行。通过U-Boot和BootRom两种方式分别实现了嵌入式软件系统平台的构建,并介绍了实现方法和步骤。     

A novel image fusion method using WBCT and PCA

A novel image fusion algorithm based on wavelet-based contourlet transform(WBCT)and principal com- ponent analysis(PCA)is proposed.The PCA method is adopted for the low-frequency components.Using the proposed algorithm to choose the greater of the active measures,the region consistency test is per- formed for the high-frequency components.Experiments show that the proposed method works better in preserving the edge and texture information than wavelet transform method and Laplacian pyramid(LP) method do in image fusion.Four indicators for the fusion image are given to compare the proposed method with other methods.     

A novel image fusion method using WBCT and PCA

A novel image fusion algorithm based on wavelet-based contourlet transform （WBCT） and principal component analysis （PCA） is proposed. The PCA method is adopted for the low-frequency components. Using the proposed algorithm to choose the greater of the active measures, the region consistency test is performed for the high-frequency components. Experiments show that the proposed method works better in preserving the edge and texture information than wavelet transform method and Laplacian pyramid （LP） method do in image fusion. Four indicators for the fusion image are given to compare the proposed method with other methods.     

基于改进的拉普拉斯金字塔变换的图像融合方法

介绍了传统的拉普拉斯变换存在的缺点以及改进的拉普拉斯变换的基本原理和重构方法,分析了新的重构算法能够在重构时抑制噪声的特点。提出了在图像融合过程中会引入噪声的问题,并通过实验分析了图像融合过程中引入的噪声情况。使用新的重构算法能够在图像重构过程中,而不是在系数处理过程中,有效抑制融合噪声。给出了基于改进的拉普拉斯变换方法进行图像融合的基本架构,并对变换系数的设置与融合过程的处理进行了详细的介绍。仿真实验的主客观性能比较表明,基于改进的拉普拉斯变换的图像融合方法比其它几种基于金字塔变换的融合效果要好得多。