Question

An increase in ___________ does NOT occur in the resulting images when applying a sharp, or high-pass reconstruction filter during the image reconstruction of CT raw data?

1) contrast resolution
2) edge enhancement
3) appearance of noise

Answer 1

Contrast resolution does not increase when applying a sharp filter in CT image reconstruction.

Step-by-step explanation:

When applying a sharp, or high-pass reconstruction filter during the image reconstruction of CT raw data, an increase in contrast resolution does NOT occur in the resulting images. The purpose of a sharp filter is to enhance the edges of an image and make them more distinct. It does this by amplifying high-frequency components of the image, which can also amplify noise. However, it does not affect the contrast resolution, which refers to the ability to distinguish between different shades of gray in the image.