Unsupervised multiresolution on segmentation for images with low depth of field

James Z. Wang, Jia Li, Robert M. Gray, Gio Wiederhold

Research output: Contribution to journalArticle

134 Citations (Scopus)

Abstract

Unsupervised segmentation of images with low depth of field (DOF) is highly useful in various applications including imge enhancement for digital cameras, target recognition, image indexing for content-based retrieval, and 3D microscopic image analysis. This paper describes a novel multiresolution image segmentation algorithm for low DOF images. The algorithm is designed to separate a sharply focused object-of-interest from other foreground or background objects. The algorithm is fully automatic in that all parameters are image independent. A multiscale approach based on high frequency wavelet coefficients and their statistics is used to perform context-dependent classification of individual blocks of the image. Unlike other edge-based approaches, our algorithm does not rely on the process of connecting object boundaries. The algorithm has achieved high accuracy when tested on more than 100 low DOF images, many with inhomogeneous foreground or background distractions. Compared with the state of the art algorithms, this new algorithm provides better accuracy at higher speed.

Original languageEnglish (US)
Pages (from-to)85-90
Number of pages6
JournalIEEE Transactions on Pattern Analysis and Machine Intelligence
Volume23
Issue number1
DOIs
StatePublished - Dec 1 2001

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Depth of Field
Multiresolution
Segmentation
Image Indexing
Content based retrieval
Content-based Retrieval
Image recognition
Target Recognition
Digital Camera
Wavelet Coefficients
Digital cameras
3D Image
Image segmentation
Image Analysis
Image Segmentation
Image analysis
High Accuracy
High Speed
Enhancement
Statistics

All Science Journal Classification (ASJC) codes

  • Software
  • Computer Vision and Pattern Recognition
  • Computational Theory and Mathematics
  • Artificial Intelligence
  • Applied Mathematics

Cite this

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Unsupervised multiresolution on segmentation for images with low depth of field. / Wang, James Z.; Li, Jia; Gray, Robert M.; Wiederhold, Gio.

In: IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol. 23, No. 1, 01.12.2001, p. 85-90.

Research output: Contribution to journalArticle

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