发明申请
- 专利标题： AUTOMATIC DETERMINATION OF REGULARIZATION FACTOR FOR ITERATIVE IMAGE RECONSTRUCTION WITH REGULARIZATION AND/OR IMAGE DE-NOISING
- 专利标题（中）： 用于定期和/或图像消除的迭代图像重建的定期因子的自动确定
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申请号： US14364715申请日： 2012-12-12
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公开(公告)号： US20140348440A1公开(公告)日： 2014-11-27
- 发明人: Frank Bergner , Bernhard Johannes Brendel , Thomas Koehler
- 申请人： KONINKLIJKE PHILIPS N.V.
- 申请人地址： NL Eindhoven
- 专利权人： Koninklijke Philips N.V.
- 当前专利权人： Koninklijke Philips N.V.
- 当前专利权人地址： NL Eindhoven
- 国际申请： PCT/IB2012/056929 WO 20121212
- 主分类号： G06T5/00
- IPC分类号： G06T5/00
摘要：
A processing component (122) processes images based on an iterative reconstruction algorithm with regularization and/or de-noising algorithm. The processing component includes a set point determiner (224) that determines a quality set point (216) between predetermined lower and upper quality bounds (226) based on a quality variable (228) indicative of an image quality of interest. The processing component further includes a comparator (214) that compares, each processing iteration, a quality metric of a current generated image with the quality set point and generates a difference value indicative of a difference between the quality metric and the quality set point. The processing component further includes a regularization factor updater (220) that generates an updated regularization factor for a next processing iteration based on a current value (222) of the regularization factor and at least the quality metric in response to the difference value indicating that the quality metric is outside of a predetermined range about the quality set point.