# BR$^2$Net: Defocus Blur Detection Via a Bidirectional Channel Attention Residual Refining Network

> Research article (IEEE Transactions on Multimedia, 2020) · cited 50× · AI/ML

**Wikidata**: [openalex:W3015304398](https://www.wikidata.org/wiki/openalex:W3015304398)  
**Source**: https://4ort.xyz/entity/br-2-net-defocus-blur-detection-via-a-bidirectional-channel-attention-residual-refining-network