The effect of resizing on the natural appearance of scintigraphic images: an image similarity analysis.

ABSTRACT:

Background and objective

This study aimed to assess the impact of upsampling and downsampling techniques on the noise characteristics and similarity metrics of scintigraphic images in nuclear medical imaging.

Methods

A physical phantom study using dynamic imaging was used to generate reproducible static images of varying count statistics. Naïve upsampling and downsampling with linear interpolation were compared against alternative methods based on the preservation of Poisson count statistics and principles of nuclear scintigraphic imaging; namely, linear interpolation with a Poisson resampling correction (upsampling) and a sliding window summation method (downsampling). For each resizing method, we computed the similarity of resized images to count-matched images acquired at

SUBMITTER: Ghassel S 

PROVIDER: S-EPMC11839826 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature