The Family of Parametric Projection Filters and Its Properties for Perturbation
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概要
- 論文の詳細を見る
A lot of optimum filters have been proposed for an image restoration problem. Parametric filter, such as Parametric Wiener Filter, Parametric Projection Filter, or Parametric Partial Projection Filter, is often used because it requires to calculate a generalized inverse of one operator. These optimum filters are formed by a degradation operator, a covariance operator of noise, and one of original images. In practice, these operators are estimated based on empirical knowledge. Unfortunately, it happens that such operators differ from the true ones. In this paper, we show the unified formulae of inducing them to clarify their common properties. Moreover, we investigate their properties for perturbation of a degradation operator, a covariance operator of noise, and one of original images. Some numerical examples follow to confirm that our description is valid.
- 社団法人電子情報通信学会の論文
- 1997-08-25
著者
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Miyakoshi Masaaki
Division Of Computer Science Graduate School Of Information Science And Technology Hokkaido Universi
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Miyakoshi Masaaki
Division Of Systems And Information Engineering Graduate School Of Engineering Hokkaido University
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IMAI Hideyuki
Division of Systems and Information Engineering, Graduate school of Engineering, Hokkaido University
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TANAKA Akira
Matsushita Communication Industrial Co., Ltd.
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Imai Hideyuki
Division Of Systems And Information Engineering Graduate School Of Engineering Hokkaido University
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IMAI Hideyuki
Division of Computer Science, Graduate School of Information Science and Technology, Hokkaido University
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