Title
Compressing Feature Sets With Digital Search Trees
Abstract
State-of-the-art image retrieval pipelines are based on "bag-of-words" matching. We note that the original order in which features are extracted from the image is discarded in the "bag-of-words" matching pipeline. As a result, a set of features extracted from a query image can be transmitted in any order. A set of m unique features has m ! orderings, and if the order of transmission can be discarded, one can reduce the query size by an additional log(2) (m !) bits. We propose a coding scheme based on Digital Search Trees that reduces size of a set of features by approximately log(2)(m !) bits. We perform analysis of the scheme, and show how it applies to any set of symbols in which order can be discarded. We illustrate how the scheme can be applied to a set of low bitrate Compressed Histogram of Gradients (CHoG) descriptors.
Year
DOI
Venue
2011
10.1109/ICCVW.2011.6130219
2011 IEEE INTERNATIONAL CONFERENCE ON COMPUTER VISION WORKSHOPS (ICCV WORKSHOPS)
Keywords
Field
DocType
feature extraction,image retrieval,indexes,indexation,bag of words,silicon
Pipeline transport,Automatic image annotation,Feature detection (computer vision),Pattern recognition,Image matching,Computer science,Image retrieval,Coding (social sciences),Histogram of oriented gradients,Artificial intelligence,Visual Word
Conference
Volume
Issue
Citations 
2011
1
5
PageRank 
References 
Authors
0.52
13
7
Name
Order
Citations
PageRank
Vijay Chandrasekhar194945.35
yuriy a reznik225825.70
Gabriel Takacs369831.40
David M. Chen494742.62
Sam S. Tsai572436.51
Radek Grzeszczuk62562204.55
Bernd Girod789881062.96