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本文结合DCT变换的特性，利用分形的Peano一hilbert扫描曲线，对基于DCT变换的图像编码方法进行了研究，并提出了改进方法。主要工作分为两个部分: 一是...
本文结合DCT变换的特性，利用分形的Peano一hilbert扫描曲线，对基于DCT变换的图像编码方法进行了研究，并提出了改进方法。主要工作分为两个部分: 一是在分块DCT基础上的改进。对分块后生成的各图像块矩阵，不直接作二维DCT变换，而是先进行扫描，使之重排成一维向量，再进行一维DCT变换，这样可以减少运算量。 其次是对层次余弦变换编码部分的改进。使用层次DCT变换与零树编码相结合的方法，并在扫描编码过程中，按Peano一hilbert扫描顺序进行编码。这样不仅可以减少“块效应”，而且可以加快编码速度。-this paper the characteristics of DCT, using fractal Peano a Hilbert scanning curve, the DCT-based image coding method for the study and improvement of methods. The work is divided into two main parts : First, the DCT block on the basis of improvements. Right after block production of the image block matrix, not for direct two-dimensional DCT, but first scan, so they line up in a heavy-dimensional vector and then a peacekeeping DCT, thus reducing the amount of computation. Secondly, the level of cosine transform coding some of the improvements. The use level of DCT and zero tree coding combination of methods, coding and scanning process, according to a Hilbert Peano code scanning sequence. This will not only reduce the "blocking
- 2022-07-20 17:37:33下载
- 积分：1
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MAPGIS
MapGIS-IMS实例开发之空间分析的实现-MapGIS-IMS instance of the realization of the development of spatial analysis
- 2022-01-26 07:58:15下载
- 积分：1
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基于ArcPy对地图服务进行切片并发布
源码是基于ArcPy进行开发的对地图进行切片，然后发布到ArcGIS Server服务器上，是基于python进行开发的，如果需要就请拿去吧，这个网站不错
- 2022-03-20 21:11:36下载
- 积分：1
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Mapobject+Delphi深入开发
Mapobject+Delphi深入开发-Mapobject+ Delphi-depth development
- 2022-02-01 22:25:59下载
- 积分：1
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测量基础软件开发。包括前方交会，后方交会，后方交会等个种测量的平差。...
测量基础软件开发。包括前方交会，后方交会，后方交会等个种测量的平差。-measurement based software development. Including forward intersection, the rear intersection, the rear other species fair measurement of adjustment.
- 2023-09-05 10:10:04下载
- 积分：1
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This application, built in VB using MapObjects, allows the user
to zoom in, z...
This application, built in VB using MapObjects, allows the user
to zoom in, zoom out and pan using only the mouse. The pan is
a dynamic pan just push the mouse in the direction you would
like to pan.-This application, built in VB using MapObjects, allows the user to zoom in, zoom out and pan using only the mouse. The pan is a dynamic pan just push the mouse in the direction you would like to pan.
- 2022-03-05 14:27:16下载
- 积分：1
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基于MAPX的GIS应用，ASP.net，c#开发，实现了地图放大查询等功能...
基于MAPX的GIS应用，ASP.net，c#开发，实现了地图放大查询等功能 -MAPX of GIS-based applications, ASP.net, c# Development, the realization of the map to enlarge the functions of query
- 2022-03-20 03:32:31下载
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基于c#和skyline的三维开发基本框架
应用背景
用vs2010打开SkylineWeb.sln，加载fly文件，修改web.config文件，里面列举了skyline二次开发的一些基本功能。
关键技术
上述框架使用要求你已经学会使用skyline创建Fly工程文件，并且会写js。
- 2022-07-23 05:27:33下载
- 积分：1
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GIS编程，AE+C#缓冲区分析，AE+VB缓冲区分析
GIS编程，AE+C#缓冲区分析，AE+VB缓冲区分析-GIS programming, AE+ C# buffer analysis, AE+ VB buffer analysis
- 2022-06-27 03:47:50下载
- 积分：1
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ArcEngine基于VB开发实例
实现ArcEngine +VB的开发，实现导航，标注，浏览，渲染，缓冲区分析等等功能。以太仓市为例，实现不同年份GDP等变化统计。
- 2023-09-08 00:10:03下载
- 积分：1
