Final answer:
Sectional reformatting is a filtering technique that involves copying and rearranging the reformatted raw data to create a dataset similar to the original raw data.
Step-by-step explanation:
The filtering technique described in the question is called sectional reformatting. Sectional reformatting involves creating a new dataset that appears similar to the original raw data by copying and rearranging the reformatted raw data.
This technique is commonly used in medical imaging to reconstruct cross-sectional images from 3D image data.