# Group sparsity residual constraint for image denoising with external nonlocal self-similarity prior

> Research article (Neurocomputing, 2017) · cited 43× · AI/ML

**Wikidata**: [openalex:W2767380400](https://www.wikidata.org/wiki/openalex:W2767380400)  
**Source**: https://4ort.xyz/entity/group-sparsity-residual-constraint-for-image-denoising-with-external-nonlocal-self-similarity-prior