National Natural Science Foundation of China(No.6171177);National Key Scientific Instrument and Equipment Development Project(No.2013YQ240803)
Ring artifact is the major factor that seriously influence quality of computed tomography(CT)image reconstruction,especially in testing large-scale workpieces.To remove ring artifact quickly and efficiently,a kind of ...
National Natural Science Foundation of China(No.6171177)
For sparse storage and quick access to projection matrix based on vector type, this paper proposes a method to solve the problems of the repetitive computation of projection coefficient, the large space occupation and...