Quality evaluation of X-ray computed tomography volume data in dimensional metrology
نویسندگان
چکیده
This paper presents a method for evaluating the quality of X-ray computed tomography (CT) volume data for dimensional metrology. In the method entropy defined on the distribution of CT values of volume data is used as a criterion. For a local geometric feature of a specimen, concepts defined in GD&T are used as reference to define the evaluation area for entropy calculation. Some scannings with different image quality are used to evaluate the performance of the proposed method. The results show that the method can aid CT user to select an optimized scanning quality.
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