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UBC Theses and Dissertations
Image processing Chan, Andy Bing-Bill
Abstract
In this thesis, we consider the restoration of multiple grey levels image. The problem is to clean up or restore the dirty picture, that is, to construct an estimate of the true image from a noisy picture of that true image. Following a method proposed by Meloche and Zamar (1994), we estimate the colour at each site by a function of the data available in a neighbourhood of that site. In this approach, the local characteristics of that image, that is, the frequency with which each pattern appears in the true unobserved image are particularly important. We will propose a family of unbiased estimates of the pattern distribution and the noise level which are used in the restoration process. We will use our estimates of the pattern distribution in an attempt to select the best neighbourhood shape for the restoration process.
Item Metadata
Title |
Image processing
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Creator | |
Publisher |
University of British Columbia
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Date Issued |
1995
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Description |
In this thesis, we consider the restoration of multiple grey levels image. The problem
is to clean up or restore the dirty picture, that is, to construct an estimate of the true
image from a noisy picture of that true image. Following a method proposed by Meloche
and Zamar (1994), we estimate the colour at each site by a function of the data available
in a neighbourhood of that site. In this approach, the local characteristics of that image,
that is, the frequency with which each pattern appears in the true unobserved image are
particularly important. We will propose a family of unbiased estimates of the pattern
distribution and the noise level which are used in the restoration process. We will use
our estimates of the pattern distribution in an attempt to select the best neighbourhood
shape for the restoration process.
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Extent |
5010246 bytes
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Genre | |
Type | |
File Format |
application/pdf
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Language |
eng
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Date Available |
2009-01-13
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Provider |
Vancouver : University of British Columbia Library
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Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
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DOI |
10.14288/1.0086896
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URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
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Graduation Date |
1995-05
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Campus | |
Scholarly Level |
Graduate
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Aggregated Source Repository |
DSpace
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Item Media
Item Citations and Data
Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.