Correction of noise distribution of projection data using interpolation in Radon-space

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概要

• 論文の詳細を見る

• In the image reconstruction of projection data including noise in X-ray CT, noise distribution is nonlinearly mapped by logarithm operation and so the accuracy of CT number is degraded. We have clarified the influence of the nonlinearity of noise distribution and presented the correction method. In this report, we propose a new method for suppressing streak artifact and improving the accuracy of CT number by using interpolation based on theoretical expression of noisy projection data in Radon-space.

• 社団法人電子情報通信学会の論文
• 2007-01-19

著者

• Iwamoto Shin‐ichiro

  Osaka Prefecture University:osaka Butsuryo College

• Shiozaki Akira

  Osaka Prefecture Univ. Osaka Jpn

• Shiozaki Akira

  Osaka Prefecture University

• Iwamoto Shin-ichiro

  Osaka Prefecture University

関連論文

• Reversible Watermarking Method for JPEG Images
• Correlation-Based Video Watermarking Method Using Inter-Frame Similarity(Information Hiding, Cryptography and Information Security)
• Correction of noise distribution of projection data using interpolation in Radon-space

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