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논문 리스트

2009
Image Feature Representation Using Code Vectors for Retrieval Image Feature Representation Using Code Vectors for Retrieval
한국ITS학회
논문정보
Publisher
한국ITS학회 논문지
Issue Date
2009-06-30
Keywords
-
Citation
-
Source
-
Journal Title
-
Volume
8
Number
3
Start Page
122
End Page
130
DOI
ISSN
17380774
Abstract
The paper presents an algorithm which uses code vectors to represent corner geometry information for searching the similar images from a database. The corners have been extracted by finding the intersections of the detected lines found using Hough transform. Taking the corner as the center coordinate, the angles of the intersecting lines are determined and are represented using code vectors. A code book has been used to code each corner geometry information and indexes to the code book are generated. For similarity measurement, the histogram of the code book indexes is used. This result in a significant small size feature matrix compared to the algorithms using color features. Experimental results show that use of code vectors is computationally efficient in similarity measurement and the corners being noise invariant produce good results in noisy environments.

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