【摘要】：遙感技術(shù)不斷的發(fā)展，影像獲取的能力強(qiáng)大，從而積累的影像數(shù)據(jù)量越來(lái)越大，這就要求我們更加有效的存儲(chǔ)管理大量影像數(shù)據(jù)。影像數(shù)據(jù)資料的應(yīng)用越來(lái)越廣泛，為應(yīng)急救災(zāi)、國(guó)情監(jiān)測(cè)、城市建設(shè)規(guī)劃、交通等領(lǐng)域提供了重要的數(shù)據(jù)，發(fā)揮著重要的作用，這使得加強(qiáng)數(shù)據(jù)的維護(hù)管理顯得尤為必要。 本文從數(shù)據(jù)庫(kù)的角度出發(fā)設(shè)計(jì)研究能夠?qū)崿F(xiàn)遙感影像數(shù)據(jù)的有效存儲(chǔ)與管理的技術(shù)，確定了以面向?qū)ο?關(guān)系的Oracle數(shù)據(jù)庫(kù)為平臺(tái)，分析影像庫(kù)構(gòu)建的主要技術(shù)，并付諸于實(shí)踐進(jìn)行開(kāi)發(fā)的技術(shù)驗(yàn)證。主要內(nèi)容有： 首先結(jié)合遙感影像數(shù)據(jù)的組織管理模式，對(duì)國(guó)內(nèi)外影像數(shù)據(jù)庫(kù)的研究現(xiàn)狀與特點(diǎn)進(jìn)行了闡述與分析。 闡述分析了Oracle數(shù)據(jù)庫(kù)的開(kāi)發(fā)平臺(tái)內(nèi)部數(shù)據(jù)組織結(jié)構(gòu)，以及技術(shù)優(yōu)勢(shì)。對(duì)于遙感影像數(shù)據(jù)的開(kāi)發(fā)，Oracle有著獨(dú)特的內(nèi)部組件：用于空間數(shù)據(jù)組織管理的Spatial，以及存儲(chǔ)影像像素?cái)?shù)據(jù)與屬性元數(shù)據(jù)的GeoRaster對(duì)象類型。 可以進(jìn)行數(shù)據(jù)庫(kù)開(kāi)發(fā)的接口有很多種，選擇合適的接口對(duì)于提高數(shù)據(jù)庫(kù)系統(tǒng)的效率很重要。因此，文章對(duì)主要的接口進(jìn)行了闡述與對(duì)比分析，并且提出利用OCI接口完成與Oracle影像庫(kù)的數(shù)據(jù)交互工作。 對(duì)考慮影像數(shù)據(jù)量不斷增多的情況，對(duì)構(gòu)建金字塔的影像組織技術(shù)進(jìn)行了深入的分析，對(duì)于影像數(shù)據(jù)的在應(yīng)用層面的調(diào)度顯示技術(shù)地實(shí)現(xiàn)進(jìn)行了設(shè)計(jì)，影像數(shù)據(jù)以大小統(tǒng)一的規(guī)格進(jìn)行不同分辨率的存儲(chǔ)，物理空間存量增大，實(shí)現(xiàn)影像數(shù)據(jù)的高效調(diào)度顯示。而且數(shù)據(jù)庫(kù)具有很好的擴(kuò)展性。同時(shí)提出了在調(diào)度的過(guò)程中的首先的工作是影像數(shù)據(jù)塊的快速定位與計(jì)算，，借助Oracle內(nèi)部成熟的索引機(jī)制，在影像塊表上建立索引，提高檢索效率的方法。 最后，在上述研究的基礎(chǔ)上，對(duì)遙感影像數(shù)據(jù)進(jìn)行入庫(kù)、構(gòu)建金字塔、瀏覽顯示等功能，對(duì)本文的設(shè)計(jì)的方案可行性進(jìn)行了實(shí)踐驗(yàn)證，基本實(shí)現(xiàn)了數(shù)據(jù)的有效操作與管理。對(duì)遙感影像數(shù)據(jù)建庫(kù)管理提高了性能與數(shù)據(jù)安全。
[Abstract]:With the continuous development of remote sensing technology, the ability of image acquisition is strong, so the amount of image data accumulated is more and more large, which requires us to more effectively store and manage a large number of image data. The application of image data is more and more extensive, which provides important data and plays an important role in the fields of emergency relief, national situation monitoring, urban construction planning, transportation and so on, which makes it particularly necessary to strengthen the maintenance and management of data. From the point of view of database, this paper designs and researches the technology that can realize the effective storage and management of remote sensing image data, and determines the main technology of image database construction based on Object-Oriented Oracle database. And put into practice to develop the technical verification. The main contents are as follows: firstly, combined with the organization and management mode of remote sensing image data, the research status and characteristics of image database at home and abroad are expounded and analyzed. This paper analyzes the data organization structure and technical advantages of Oracle database development platform. Oracle has a unique internal component for the development of remote sensing image data: spatial data organization and management, and GeoRaster object types that store image pixel data and attribute metadata. There are many kinds of interfaces that can be used for database development. It is very important to select suitable interfaces to improve the efficiency of database system. Therefore, this paper describes and compares the main interfaces, and proposes to use the OCI interface to complete the data interaction with the Oracle image library. Considering the increasing amount of image data, the image organization technology of building pyramid is deeply analyzed, and the scheduling and displaying technology of image data at application level is designed. The storage of image data at different resolution with uniform size can increase the amount of physical space and realize the efficient scheduling and display of image data. And the database has very good extensibility. At the same time, it is proposed that the first task in the process of scheduling is to locate and calculate the image data block quickly. With the help of the mature index mechanism of Oracle, the method of building index on the image block table is proposed to improve the retrieval efficiency. Finally, on the basis of the above research, we put the remote sensing image data into the database, construct the pyramid, browse the display and other functions, and verify the feasibility of the design scheme of this paper, and basically realize the effective operation and management of the data. The management of remote sensing image data base has improved the performance and data security.
【學(xué)位授予單位】：北京建筑大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：P208

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 虞欣;張海濤;劉佳;;基于Oracle10g和ArcSDE的正射影像入庫(kù)基本參數(shù)的配置研究[J];北京測(cè)繪;2009年03期

2 馬照亭,潘懋,胡金星,吳煥萍,王占剛;一種基于數(shù)據(jù)分塊的海量地形快速漫游方法[J];北京大學(xué)學(xué)報(bào)(自然科學(xué)版);2004年04期

3 李芳;鄔群勇;汪小欽;;基于GeoRaster的多源遙感數(shù)據(jù)存儲(chǔ)研究[J];測(cè)繪科學(xué);2009年03期

4 霍亮;劉桂紅;;T級(jí)影像數(shù)據(jù)管理平臺(tái)的設(shè)計(jì)與實(shí)現(xiàn)[J];測(cè)繪科學(xué);2010年06期

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本文編號(hào)：2188003