Location

La Jolla ,CA

Start Date

1-1-1989 12:00 AM

Description

Computed Tomography is currently being used for a variety of industrial nondestructive evaluation (NDE) applications. For most of these applications, the only method for interpreting the inspection results is to display them in an image format and visually evaluate the data. Implicit in this process are some intuitive assumptions regarding the relationship between the output image and the inspection object. One such over-simplified model is that the pixel values represent the average density in the rectangular volume formed by the intersection of the pixel grid and the slice height. A more correct model would include the effects of the point response function, which shows that data from a point impulse are actually distributed over several pixels.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

8A

Chapter

Chapter 2: Advanced Techniques

Section

X-Ray Computed Tomography

Pages

423-430

DOI

10.1007/978-1-4613-0817-1_54

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Computed Tomography System Response Function Measurements

La Jolla ,CA

Computed Tomography is currently being used for a variety of industrial nondestructive evaluation (NDE) applications. For most of these applications, the only method for interpreting the inspection results is to display them in an image format and visually evaluate the data. Implicit in this process are some intuitive assumptions regarding the relationship between the output image and the inspection object. One such over-simplified model is that the pixel values represent the average density in the rectangular volume formed by the intersection of the pixel grid and the slice height. A more correct model would include the effects of the point response function, which shows that data from a point impulse are actually distributed over several pixels.