X-ray CT glossary - Partial volume effect

X-ray CT glossary ► bit.ly/3UoKvV8
X-ray CT (computed tomography) images have a finite resolution like any digital image. Because of the limited resolution, a surface of an object or an interface between air and solid, for example, often appears blurred. The voxels at the interface can include both solid and air and exhibit a gray level, which is a combination of the two phases. Depending on the ratio of the two phases, the gray level of these interface voxels varies. It is an artifact, and this artificial intermediate gray level is called the partial volume effect.
If you want to learn more about X-ray computed tomography, here is a brief introduction for you: bit.ly/3IntkKA
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