著者
皆川 卓也 斎藤 英雄
出版者
The Institute of Electrical Engineers of Japan
雑誌
電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society (ISSN:03854221)
巻号頁・発行日
vol.129, no.5, pp.947-955, 2009-05-01
被引用文献数
1 1

In this paper, we present an object category recognition method for an information search system which is queried by camera of mobile phone or by servers of internet services. In such a system, processing speed is an important requirement.<br>To improve processing speed, the hierarchical object category recognition technique proposed by Serre<sup>(23)</sup> is modified using Haar-Like features, vector quantization of feature models, and reduction of processing area. In addition, by retaining the information of each feature's position, it compensates the accuracy which is a little reduced in exchange of processing speed. We implemented this method to web server, and proved this system can work in practical processing time. Through the experiment for Caltech-101 image database and natural scene category images, we also confirm the accuracy of our approach.

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