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Motion-Compensated Reconstruction Method Based on Rigid Motion Model with Multi-Object |
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| Authors: | JINXin LILiang CHENZhiqiang ZHANGLi XINGYuxiangKeyLaboratoryofParticle%RadiationImagingofMinistryofEducation |
| Institution: | JIN+Xin,LI+Liang,CHEN+Zhiqiang,ZHANG+Li,XING+Yuxiang+Key+Laboratory+of+Particle+%26+Radiation+Imaging+of+Ministry+of+Education,Department+of+Engineering+Physics,Tsinghua+University,Beijing+100084,China |
| Abstract: | This paper gives an efficient approach to reconstruct moving multiple objects(multi-object).Each object has independently rigid motion which includes translation and rotation.The traditional FBP algorithm can resolve the one-object motion problem rather well.However,it suffers from perceptible motion artifacts in multi-object cases.This paper proposes a new motion-compensated reconstruction approach with a priori knowledge of the rigid motion model.Both an FBP-type and an ART-type algorithm were derived.In ... |
| Keywords: | computed tomography (CT) motion-compensated method FBP ART motion artifacts |
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