X線CT画像における逐次近似的手法を用いた撮像位置のずれ推定による画質改善手法

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門

発行日: 2017/03/01

タイトル(英語): Quality Improvement of X-ray CT Images by Estimation of the Mechanical Misalignment in a Projection Image Using an Iterative Method

著者名: 野口　健二（名古屋電機工業（株）），高橋　聡（名古屋電機工業（株）），鈴木　大介（名古屋電機工業（株）），寺本　篤司（藤田保健衛生大学）

著者名(英語): Kenji Noguchi (Nagoya Electric Works Co., Ltd.), Satoshi Takahashi (Nagoya Electric Works Co., Ltd.), Daisuke Suzuki (Nagoya Electric Works Co., Ltd.), Atsushi Teramoto (FUJITA HEALTH UNIVERSITY)

キーワード: X線，CT，位置ずれ，画質改善　　X-ray，CT，object misalignment，image quality improvement

要約(英語): An X-ray computed tomography (CT) apparatus is required for the inspection of semiconductor packages to detect fine voids with high accuracy. However, obtaining high-quality CT images stably is difficult because of object misalignment. In this paper, we propose a method for improving the X-ray CT image quality by estimating the mechanical misalignment of each projection image. The estimation is conducted by using an iterative method based on the characteristic features obtained from the reconstructed image. In experiments, we verified the effectiveness of proposed method by using projection images with simulated misalignments added. The results indicated that the proposed method may be useful for improving the quality of CT imaging.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.137 No.3 （2017） 特集：平成28年産業応用部門大会

本誌掲載ページ: 213-219 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejias/137/3/137_213/_article/-char/ja/