Abstract
The geometrical characteristics measurement of viscous objects is one of the development tendencies of dynamic geometrical characteristics measurement. This article deals with the technique of tomography image processing for geometrical characteristics measurement of viscous object. Based on the theory of photoelectric information processing, image segmentation, image preprocessing and object characteristic extraction from images are developed to increase the amount of information which can be obtained from viscous object images. The experimental results demonstrate that these methods cannot only distinguish the geometrical characteristics of viscous objects from tomography images in which the ratio of pixels between background and object image is about 9 to 1, but can also increase the image resolution by 30 percent. It is concluded that these methods can solve the problem to use computer tomography of dynamic geometrical characteristics measurement for non-destructive inspections.
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