WEB中圖像的檢索技術研究

論文字數:10822,頁數:14

摘  要

在網絡和多媒體技術越來越發達的今天，信息檢索技術成了現在計算機領域的重要內容，而圖像檢索技術又正是這其中的重要內容之一。而網絡資源的極大豐富以及圖像檢索技術不斷發展成熟，使得圖像檢索技術的應用領域不斷擴大，這為圖像檢索技術的繼續研究提供條件。
人們為了對圖像進行更好的使用和組織管理，便開發出了多種多樣圖像檢索技術，本文首先要將各種圖像檢索技術的工作原理、研究現狀、相關圖像搜索引擎與發展趨勢作一個介紹。
隨著網絡傳送速度與計算機信息處理速度的提高，網頁中對多媒體信息的使用變得十分普及，特別是圖像信息，己經成為表示網頁內容不可缺少的組成部分。在實現對網頁中文本信息提取的同時，如何再為用戶抽取所需的圖片資料，是信息檢索中一個重要的方面。于是各種基于Web的圖像檢索系統應運而生。它們采用不同的工作方式，極大地方便了用戶對網上圖像進行檢索。
目前圖像檢索技術的發展正走向更加成熟和完善，其中Web圖像搜索技術也更加完善，本文將介紹這種圖像檢索技術并闡述Web頁中的圖像與文本之間的關系，對相似度作出了詳細的論述。

關鍵字: 搜索引擎    圖象檢索    文本處理    信息檢索    相似度    相關性反饋

Study of Web Images Retrieva l Technique
Abstract
Today, the network and multimedia technology are more and more developed, retrieva l technique of information has become the important content of the computer field now, and picture retrieva l technique is exactly one of the important contents among them. And network resources are enriched greatly and picture retrieva l technique is developing ripe constantly, make picture application of retrieva l technique expand constantly, this offer terms for picture continuation research of retrieva l technique.

People develop varied picture retrieva l technique in order to carry on better use and organizational management to the picture , this text should first act as an introduction various kinds of picture operation principle , research current situation , relevant picture search engine and development trend of retrieva l technique.

With the improvement of the transfer rate of the network and information processing speeds of the computer, it is popularized very much that the webpage hits the use for information of the multimedia, especially the information of the picture , it shows the component with indispensable content of the webpage that own but become. While realizing drawing the Chinese version information of the webpage, how to collect the necessary picture materials for users again, it is an important respect in information retrieva l. Then various kinds of picture retrieva l systems based on Web arise at the historic moment. They adopt different working way, help user search to the picture online greatly.

The development of retrieva l technique of the picture is moving towards riper and more perfect at present, Web picture too perfect to search for technology among them, this text recommend the picture retrieva l technique and explain Web picture and relation of text of page, make detailed argumentation to similar degree ,etc. , search for through experiment model conclusion indicate the high efficiency that the picture searches for.

Keywords: Search engine    Image Retrieva l   Text-processing   Information retrieva l   Similar degree    Dependence feedback

目   錄
摘  要 i
ABSTRACT ii
第一章    前言 1
1.1    引言 1
1.2    現有的圖象檢索技術 1
1.2.1    搜索引擎的工作原理 1
1.2.2    圖像搜索引擎的檢索途徑 2
1.2.3    對幾個基本引擎的分析 2
1.2.4    搜索引擎的基本要點 3
1.3    圖像檢索的發展方向 4
第二章    基于Web的圖像搜索 6
2.1    文本與圖像之間的關系 6
2.1.1    表示圖像內容的文本標記 6
2.1.2    文本的權值比較 6
2.2    圖像信息檢索 7
2.2.1    檢索模型與相似度 7
2.2.2　  分詞技術和匹配方法 8
2.3 檢索反饋 .9
結束語 11
參考文獻 11