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Project:
Efficient Management of Image and Video Data |
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People
Faculty
B.S. Manjunath
,S. K. Mitra ,Y. F. Wang
Student
Wei
Ma,
S. K. Strobel,
Y. Deng
Alexandria Digital
Library Project |
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Demos
Netra
(instructions)
Netra-II
(instructions)
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Projects |
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Large collections of images and video pose challenging problems in
storage and access to information. Our focus has been on developing multiresolution
representation for storage to facilitate browsing of images, and tools
for content based search of images and video. Towards this, we have developed
lossless image coding algorithms for multispectral/color images using wavelet
transforms that outperforms existing state-of-the art compression schemes. |
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For content analysis, a robust texture feature set has been developed
based on a Gabor wavelet decomposition, and this algorithm has been implemented
in UCSB Alexandria Digital Library to provide texture-based pattern retrievals
in aerial photo database. To learn more about these texture features, click
on the image icon.
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Learning similarity helps in better retrievals.
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A new method for indexing large image databases is proposed. This method
incorporates neural network learning algorithms and pattern recognition
techniques to construct an image texture dictionary. Image retrieval
is then formulated as a process of dictionary search to compute the best
matching codeword, which in turn indexes into the database items. This
pattern dictionary integrates both learning similarity measures and efficient
image indexing into one single framework. Thus, it is not only able to
facilitate the search process, but also provide visually more relative
retrieval results.
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A texture-based image retrieval system for browsing large-scale aerial photos is presented. The salient component of this system include texture feature extraction, image segmentation and grouping, learning similarity measure, and a texture thesaurus model for fast searching and indexing. |
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Related work
Image Browsing
in the Alexandria Digital Library (ADL) Project,
D-Lib Magazine, August 1995
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