Web中圖像的檢索技術(shù)研究

目   錄
摘  要 i
ABSTRACT ii
第一章    前言 1
1.1    引言 1
1.2    現(xiàn)有的圖象檢索技術(shù) 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(duì)幾個(gè)基本引擎的分析 2
1.2.4    搜索引擎的基本要點(diǎn) 3
1.3    圖像檢索的發(fā)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(guān)系 6
2.1.1    表示圖像內(nèi)容的文本標(biāo)記 6
2.1.2    文本的權(quán)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(shù)和匹配方法 8
2.3 檢索反饋 .9
結(jié)束語(yǔ) 11
參考文獻(xiàn) 11

摘  要

在網(wǎng)絡(luò)和多媒體技術(shù)越來(lái)越發(fā)達(dá)的今天，信息檢索技術(shù)成了現(xiàn)在計(jì)算機(jī)領(lǐng)域的重要內(nèi)容，而圖像檢索技術(shù)又正是這其中的重要內(nèi)容之一。而網(wǎng)絡(luò)資源的極大豐富以及圖像檢索技術(shù)不斷發(fā)展成熟，使得圖像檢索技術(shù)的應(yīng)用領(lǐng)域不斷擴(kuò)大，這為圖像檢索技術(shù)的繼續(xù)研究提供條件。
人們?yōu)榱藢?duì)圖像進(jìn)行更好的使用和組織管理，便開(kāi)發(fā)出了多種多樣圖像檢索技術(shù)，本文首先要將各種圖像檢索技術(shù)的工作原理、研究現(xiàn)狀、相關(guān)圖像搜索引擎與發(fā)展趨勢(shì)作一個(gè)介紹。
隨著網(wǎng)絡(luò)傳送速度與計(jì)算機(jī)信息處理速度的提高，網(wǎng)頁(yè)中對(duì)多媒體信息的使用變得十分普及，特別是圖像信息，己經(jīng)成為表示網(wǎng)頁(yè)內(nèi)容不可缺少的組成部分。在實(shí)現(xiàn)對(duì)網(wǎng)頁(yè)中文本信息提取的同時(shí)，如何再為用戶抽取所需的圖片資料，是信息檢索中一個(gè)重要的方面。于是各種基于Web的圖像檢索系統(tǒng)應(yīng)運(yùn)而生。它們采用不同的工作方式，極大地方便了用戶對(duì)網(wǎng)上圖像進(jìn)行檢索。
目前圖像檢索技術(shù)的發(fā)展正走向更加成熟和完善，其中Web圖像搜索技術(shù)也更加完善，本文將介紹這種圖像檢索技術(shù)并闡述Web頁(yè)中的圖像與文本之間的關(guān)系，對(duì)相似度作出了詳細(xì)的論述。

關(guān)鍵字: 搜索引擎    圖象檢索    文本處理    信息檢索    相似度    相關(guān)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