Presentation 2006-03-16
An incremental NFTG construction algorithm for interactive target tracking and recognition
Seihiro Sakahira, Toshikazu Wada, Junya Sakagaito, Takekazu Kato,
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Abstract(in English) We have proposed an image retrieval based object tracking and recognition method. In this method, nearest neighbor (NN) search within an image database is performed for the object image extracted from input frame. For this search, we have proposed an approximate NN search algorithm based on Nearest First Traversing Graph (NFTG), which utilizes the previous search result as the starting point of the next search. However, the computational complexity of this graph construction is O(dN^2), where N and d are the number of images in the database and the dimensionality of each image data respectively. This construction algorithm is not suitable for the interactive application that stores user specified object images one by one. In this paper, we propose an incremental tree construction algorithm whose complexity is O(dN) for storing a single object image. Through the experiments, we confirmed the effectiveness of our new graph construction algorithm.
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Keyword(in English) Nearest First Traversing / NFTG / Object Tracking and Recognition / Incremental graph construction
Paper # PRMU2005-245
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Conference Information
Committee PRMU
Conference Date 2006/3/9(1days)
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Registration To Pattern Recognition and Media Understanding (PRMU)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) An incremental NFTG construction algorithm for interactive target tracking and recognition
Sub Title (in English)
Keyword(1) Nearest First Traversing
Keyword(2) NFTG
Keyword(3) Object Tracking and Recognition
Keyword(4) Incremental graph construction
1st Author's Name Seihiro Sakahira
1st Author's Affiliation Department of Computer and Communication Science, Wakayama University()
2nd Author's Name Toshikazu Wada
2nd Author's Affiliation Department of Computer and Communication Science, Wakayama University
3rd Author's Name Junya Sakagaito
3rd Author's Affiliation Department of Computer and Communication Science, Wakayama University
4th Author's Name Takekazu Kato
4th Author's Affiliation Department of Computer and Communication Science, Wakayama University
Date 2006-03-16
Paper # PRMU2005-245
Volume (vol) vol.105
Number (no) 673
Page pp.pp.-
#Pages 8
Date of Issue