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PicSOM—Self-organizing image retrieval with MPEG-7 content descriptions (2002)
| Venue: | Networks, Special Issue on Intelligent Multimedia Processing |
| Citations: | 81 - 46 self |
BibTeX
@INPROCEEDINGS{Laaksonen02picsom—self-organizingimage,
author = {Jorma Laaksonen and Associate Member and Markus Koskela and Erkki Oja},
title = {PicSOM—Self-organizing image retrieval with MPEG-7 content descriptions},
booktitle = {Networks, Special Issue on Intelligent Multimedia Processing},
year = {2002},
pages = {841--853}
}
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Abstract
Abstract—Development of content-based image retrieval (CBIR) techniques has suffered from the lack of standardized ways for describing visual image content. Luckily, the MPEG-7, or formally “Moving Pictures Expert Group Multimedia Content Description Interface ” international standard is now emerging as both a general framework for content description and a collection of specific agreed-upon content descriptors. We have developed a neural, self-organizing technique for CBIR. Our system is named PicSOM and it is based on pictorial examples and relevance feedback (RF). The name stems from “picture ” and the self-organizing map (SOM). The PicSOM system is implemented by using tree structured SOMs. In this paper, we apply the visual content descriptors provided by MPEG-7 in the PicSOM system and compare our own image indexing technique with a reference system based on vector quantization (VQ). The results of our experiments show that the MPEG-7-defined content descriptors can be used as such in the PicSOM system even though Euclidean distance calculation, inherently used in the PicSOM system, is not optimal for all of them. Also, the results indicate that the PicSOM technique is a bit slower than the reference system in starting to find relevant images. However, when the strong RF mechanism of PicSOM begins to function, its retrieval precision exceeds that of the reference system. Index Terms—Content-based image retrieval (CBIR), MPEG-7, query by pictorial example (QBPE), relevance feedback (RF), selforganizing map (SOM), visual content description. I.
Keyphrases
picsom system mpeg-7 content description reference system picsom self-organizing image retrieval relevance feedback pictorial example self-organizing technique abstract development visual content description euclidean distance calculation general framework retrieval precision mpeg-7-defined content descriptor strong rf mechanism picsom technique content-based image retrieval self-organizing map content description visual image content relevant image vector quantization index term content-based image retrieval standardized way specific agreed-upon content descriptor visual content descriptor
