Image retrieval from the web using multiple features

doi:10.1108/14684520911011061

2009-11-27

PRE

A. Vadivel *

Shamik Sural

A.K. Majumdar

DOI：10.1108/14684520911011061

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摘要

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Purpose - The main obstacle in realising semantic-based image retrieval from the web is that it is difficult to capture semantic description of an image in low-level features. Text-based keywords can be generated from web documents to capture semantic information for narrowing down the search space. The combination of keywords and various low-level features effectively increases the retrieval precision. The purpose of this paper is to propose a dynamic approach for integrating keywords and low-level features to take advantage of their complementary strengths. Design/methodology/approach - Image semantics are described using both low-level features and keywords. The keywords are constructed from the text located in the vicinity of images embedded in HTML documents. Various low-level features such as colour histograms, texture and composite colour-texture features are extracted for supplementing keywords. Findings - The retrieval performance is better than that of various recently proposed techniques. The experimental results show that the integrated approach has better retrieval performance than both the text-based and the content-based techniques. Research limitations/implications - The features of images used for capturing the semantics may not always describe the content. Practical implications - The indexing mechanism for dynamically growing features is challenging while practically implementing the system. Originality/value - A survey of image retrieval systems for searching images available on the internet found that no internet search engine can handle both low-level features and keywords as queries for retrieving images from WWW so this is the first of its kind.

Keyword:

Internet

Worldwide web

Search engines