Method of and system for detecting anomalies in projection...

Details Method of and system for detecting anomalies in projection... Method of and system for detecting anomalies in projection...

2008-06-17

2008-06-17

Wu, Jingge (Department: 2624)

Image analysis

Applications

3-d or stereo imaging analysis

C378S004000

Reexamination Certificate

active

07388983

ABSTRACT:
A method of and a system for detecting anomalies in projection images generated by CT scanners are provided. One type of anomaly of particular interest is bright or/and dark dots in projection images, which correspond to streak artifacts in the CT images. The method for detecting such bright or/and dark dots in projection images comprises: generating projection images; computing a CFAR distance map; computing a preliminary dot map; generating dot histograms; and detecting bright dots or/and dark dots based on the generated histograms.

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