Visualization and Intelligent Systems Laboratory
VISLab

 

 

Contact Information

VISLab
Winston Chung Hall Room 216
University of California, Riverside
900 University Avenue
Riverside, CA 92521-0425


Tel: (951)-827-3954

CRIS
Bourns College of Engineering
UCR
NSF IGERT on Video Bioinformatics

UCR Collaborators:
CSE
ECE
ME
STAT
PSYC
ENTM
BIOL
BPSC
ECON
MATH
BIOENG
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Other Collaborators:
Keio University

Other Activities:
IEEE Biometrics Workshop 2014
IEEE Biometrics Workshop 2013
Worshop on DVSN 2009
Multibiometrics Book

Webmaster Contact Information:
Alex Shin
wshin@ece.ucr.edu

Last updated: July 1, 2017

 

 

Indexing Probabilistic Attributes in Image Database

Presented by: Jingchun Liu

ABSTRACT: In this report, we present a hierarchical model to index and retrieve images in the database, mainly for probabilistic attributes in the image regions. First we model the pixels in the image region as a Gaussian distribution, then we construct the index structure using routine index techniques, such as B-tree. After we obtain the initial retrieval results given the query region, we refine the retrieval perforemance by the real probability distribution of pixels estimated from Parzen window algorithm, and compare the PDF similarity using Kullback-Leibler information divergence. By the first step, we can successfully index the probabilistic attributes and reduce the searching scope, and by the second step, we can refine the retrieval results and improve performance.