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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
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information sharing : to build a complete system, interoperable e
信息共享：建成体系完整、互联互通的电子政务网络系统和国土资源政务系统共建共享的信息资源库； 无缝集成：标准化OA、MIS和GIS的有机集成； B/S结构：实现远程办公办文、远程带图作业，维护简单、安装方便 信息发布：通过WEBGIS在互联网上图文并茂的发布土地出让、转让，土地拍卖，土地登记、用地手续、矿产手续等各类信息。 二次开发：以平台为基础建立的各类应用，可以方便的进行二次开发，满足业务的各种变化需要。-information sharing : to build a complete system, interoperable e-government network systems and land resources Administrative System Sharing of information resources library; Seamless integration : standardization OA, MIS and the organic integration of GIS; B/S : remote-office run, remote operations with map and maintaining a simple, easy installation information dissemination : WEBGIS on the Internet to browse through the release of land sales and transfers, land auctions, land registration, land clearance, mineral procedures of all types of information. Second development : based platform for a variety of applications, to facilitate the conduct of secondary development to meet the business needs of the changes.
- 2022-03-01 16:51:24下载
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ArcGIS Engine中最短路径，C封装的，在VB.net中调用.rar
ArcGIS Engine中最短路径，C封装的，在VB.net中调用.rar-ArcGIS Engine in the shortest path, C package, in VB.net call. Rar
- 2022-01-26 06:35:18下载
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Terrain_example_source：生成3d地形的代码，对开发GIS等有帮助。
Terrain_example_source：生成3d地形的代码，对开发GIS等有帮助。-Terrain_example_source : 3d terrain generated code Development of GIS and other help.
- 2022-08-03 02:15:16下载
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VB+ArcEngine写的二次开发，部分集锦代码
VB+ArcEngine写的二次开发，部分集锦代码-VB+ ArcEngine write the secondary development of part of Collection code
- 2022-11-01 00:35:03下载
- 积分：1
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C #和ArcGIS Engine和方法。应用开发实例
C# 和 ArcGIS Engine 开发运用 实例
程序 开发 环境为.NET-C# and ArcGIS Engine examples of the development and application of procedures for the development environment.NET
- 2022-07-18 13:17:01下载
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Import3DAscii. Inducts the three dimensional data to the text
documents, facilit...
Import3DAscii。 导入三维数据到文本文件，以方便其它软件的提取等操作。-Import3DAscii. Inducts the three dimensional data to the text
documents, facilitates other software to withdraw and so on the
operation.
- 2022-03-18 04:02:03下载
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是NET2003+ArcEngine91的开发框架，
在此基础上可以专心的进行业务逻辑的开发...
是NET2003+ArcEngine91的开发框架，
在此基础上可以专心的进行业务逻辑的开发-Is NET2003+ ArcEngine91 the development framework, based on this conduct can concentrate on business logic development
- 2023-05-03 16:35:04下载
- 积分：1
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GIS Development, the realization of the goals and objectives of inquiries flashi...
开发GIS时，实现查询目标和目标闪烁的功能-GIS Development, the realization of the goals and objectives of inquiries flashing function
- 2022-04-06 21:07:32下载
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读写中国地球空间数据交换格式源码
读写中国地球空间数据交换格式源码...
读写中国地球空间数据交换格式源码
读写中国地球空间数据交换格式源码-read and write Chinese geospatial data exchange format source code to read and write Chinese geospatial data exchange format FO
- 2023-08-13 02:55:03下载
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