# Noise Robust Depth from Focus Using a Ring Difference Filter

> Research article (2017 IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 2017) · cited 35× · AI/ML

**Wikidata**: [openalex:W2745610371](https://www.wikidata.org/wiki/openalex:W2745610371)  
**Source**: https://4ort.xyz/entity/noise-robust-depth-from-focus-using-a-ring-difference-filter