# A Systematic Survey on CAPTCHA Recognition: Types, Creation and Breaking Techniques

> Research article (Archives of Computational Methods in Engineering, 2021) · cited 48× · AI/ML

**Wikidata**: [openalex:W3171223431](https://www.wikidata.org/wiki/openalex:W3171223431)  
**Source**: https://4ort.xyz/entity/a-systematic-survey-on-captcha-recognition-types-creation-and-breaking-techniques