The computed tomography (CT) for high-speed rotating objects is a difficult problem.There are few papers published on this topic.Because the scanning time of CT systems is not short enough to capture the quasi-static projection data of a high-speed rotating object

the traditional ray-by-ray-based CT imaging model is not applicable.In this paper

we present a principle of choosing data sampling time

establish a ray-overlapped CT imaging model for high-speed rotating objects

and propose a related iterative reconstruction algorithm.Both simulation and realistic experiment results show that the proposed method can effectively reconstruct the image of high-speed rotating objects.