Marker identification and processing in x-ray images,申请号US20090626197-传众专利搜索

Marker identification and processing in x-ray images

申请公布号：US8363919(B2)

申请号：US20090626197

申请日期：2009.11.25

申请公布日期：2013.01.29

申请人：

IMAGING SCIENCES INTERNATIONAL LLC;SEBOK DAVID

发明人：SEBOK DAVID

分类号：G06K9/00;A61B6/00;G06K9/40

主分类号：G06K9/00

摘要：A mechanism for rapidly detecting and localizing external markers placed on a patient in projection images. Embodiments of the invention allow the markers to be detected even in the presence of dense surrounding anatomy and extensive patient motion. Once the positions of the marker points on the projection images are extracted, the marker points can be used to perform marker-based patient motion detection. Embodiments of the invention can also be used outside of motion correction, such as for scanner calibration, automatic cephalometric measurements, and quality control assessment.