# DSPI Filtering Evaluation Method Based on Sobel Operator and Image Entropy

> Research article (IEEE photonics journal, 2021) · cited 16× · AI/ML

**Wikidata**: [openalex:W3205451806](https://www.wikidata.org/wiki/openalex:W3205451806)  
**Source**: https://4ort.xyz/entity/dspi-filtering-evaluation-method-based-on-sobel-operator-and-image-entropy