Temporal multiplexing radiography for dynamic x-ray imaging.
All current x-ray imaging devices acquire images sequentially, one at a time. Using a spatially distributed multibeam x-ray source we recently demonstrated the feasibility for multiplexing x-ray imaging, which can significantly increase the data collection speed. Here we present a general methodology for dynamic x-ray imaging of an object in cyclic motion with temporal multiplexing. Compared to the conventional sequential imaging technique, where 2N-1 phase images are required and N exposures are needed for a single phase image, a temporal multiplexing of dimension 2N-1 can reduce the imaging time by a factor of N while maintaining the temporal resolution.
Cao
Guohua
G
Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27599, USA. gcao@physics.unc.edu
Zhang
Jian
J
Zhou
Otto
O
Lu
Jianping
J
D000465:Algorithms; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D011856:Radiographic Image Enhancement / Q000295:instrumentation*; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000295:instrumentation*; D011859:Radiography / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity