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ETD Abstract Container

Abstract Header

Extraction of Linear Features Based on Beamlet Transform

Zhu, Yuan
http://rave.ohiolink.edu/etdc/view?acc_num=toledo1301616331

Abstract Details

2011, Master of Science, University of Toledo, Electrical Engineering.
Over the past few decades, Synthetic Aperture Radar (SAR) images have been widely used to estimate the various features on the ground. As SAR is a radar system, its images are degraded by noise which limits the application of SAR images. Therefore, extracting features from SAR images with noise is an important issue. The goal of this thesis is to develop and implement a beamlet based method to extract the linear features from Synthetic Aperture Radar images with noise and a low signal-to-noise ratio (SNR). The basic concept of beamlet analysis is to approximate the linear objects by line segments called beamlets. Beamlet analysis performs well in a noisy environment; therefore, a beamlet based algorithm for linear feature extraction is proposed in this thesis. The proposed method uses digital image pre-processing techniques to offset the noise and low-contrast problems and to recalculate pixel values. Linear features such as a road network are then extracted by applying the beamlet transform based algorithm. The algorithm recursively partitions the image into sub-squares to build a beamlet dictionary to perform the transform. The complete linear features are then obtained with the post-processing algorithm to link the discontinuities. Experimental results have demonstrated the effectiveness of this method.
Ezzatollah Salari (Committee Chair)
Junghwan Kim (Committee Member)
Jackson Carvalho (Committee Member)
Electrical Engineering
Beamlet transform; linear features; SAR image; Canny's edge detection

Recommended Citations

Citations

  • Zhu, Y. (2011). Extraction of Linear Features Based on Beamlet Transform [Master's thesis, University of Toledo]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1301616331

    APA Style (7th edition)

  • Zhu, Yuan. Extraction of Linear Features Based on Beamlet Transform. 2011. University of Toledo, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=toledo1301616331.

    MLA Style (8th edition)

  • Zhu, Yuan. "Extraction of Linear Features Based on Beamlet Transform." Master's thesis, University of Toledo, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1301616331

    Chicago Manual of Style (17th edition)

toledo1301616331
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© 2011, all rights reserved.
This open access ETD is published by University of Toledo and OhioLINK.