Ultrasonic Imaging for Boundary Shape Generation by Phase Unwrapping with Singular-Point Elimination Based on Complex-Valued Markov Random Field Model
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概要
- 論文の詳細を見る
Ultrasonic imaging is useful in seabed or lakebed observations. We can roughly estimate the sea depth by hearing the echo generated by the boundary of water and rocks or sand. However, the estimation quality is usually not sufficient to draw seabed landscape since the echo signal includes serious distortion caused by autointerference. This paper proposes a novel method to visualize the shape of distant boundaries, such as the seawater-rock/sand boundary, based on the complex-valued Markov random field (CMRF) model. Our method realizes adaptive compensation of distortion without changing the global features in the measurement data, and obtains higher-quality landscape with less computational cost than conventional methods.
- （社）電子情報通信学会の論文
- 2010-01-01
著者
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HIROSE Akira
Department of Ophthalmology and Visual Science
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NISHINO Tomohiro
Department of Medical Engineering, Osaka University Medical School
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Nishino Tomohiro
Department Of Electronic Engineering Graduate School Of Engineering The University Of Tokyo
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YAMAKI Ryo
Department of Electronic Engineering, Graduate School of Engineering, The University of Tokyo
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Hirose Akira
Department Of Electronic Engineering Graduate School Of Engineering The University Of Tokyo
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Hirose Akira
Department Of Electrical Engineering The University Of Tokyo
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Yamaki Ryo
Department Of Electronic Engineering Graduate School Of Engineering The University Of Tokyo
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Nishino Tomohiro
Department of Cardiovascular Medicine, Kobe City Medical Center General Hospital
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