# Noise Suppression and Edge Preservation for Low-Dose COVID-19 CT Images Using NLM and Method Noise Thresholding in Shearlet Domain

> Research article (Diagnostics, 2022) · cited 17× · AI/ML

**Wikidata**: [openalex:W4309006939](https://www.wikidata.org/wiki/openalex:W4309006939)  
**Source**: https://4ort.xyz/entity/noise-suppression-and-edge-preservation-for-low-dose-covid-19-ct-images-using-nlm-and-method-noise-thresholding-in-shear