Title

Improving Semantic Concept Detection And Retrieval Using Contextual Estimates

Abstract

In this paper we introduce a novel contextual fusion method to improve the detection scores of semantic concepts in images and videos. Our method consists of three phases. For each individual concept, the prior probability of the concept is incorporated with detection score of an individual SVM detector. Then probabilistic estimates of the target concept are computed using all of the individual SVM detectors. Finally, these estimates are linearly combined using weights learned from the training set. This procedure is applied to each target concept individually. We show significant improvements to our detection scores on the TRECVID 2005 development set and LSCOM-Lite annotation set. We achieved on average +3.9% improvements in 29 out of 39 concepts. © 2007 IEEE.

Publication Date

1-1-2007

Publication Title

Proceedings of the 2007 IEEE International Conference on Multimedia and Expo, ICME 2007

Number of Pages

536-539

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/icme.2007.4284705

Socpus ID

46449086544 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/46449086544

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