Marcel van Herk,Jan-Jakob Sonke,Lambert Zijp,Peter Remeijer
申请号:
US12600386
公开号:
US08331526B2
申请日:
2007.05.17
申请国别(地区):
US
年份:
2012
代理人:
摘要:
An in-line 4D cone beam CT reconstruction algorithm queues a limited number of projection images such that the phase determination algorithm can look-ahead. At regular intervals, the queue is scanned and those images which have enough look-ahead to obtain phase information are filtered and back-projected. The algorithm thus keeps up with the image acquisition speed and produces a 4D reconstruction within a few seconds of the end of scanning.