# Uniformity and isotropy of speckle pattern cause the doubled random error phenomenon in digital image correlation

> Research article (Optics and Lasers in Engineering, 2020) · cited 11× · AI/ML

**Wikidata**: [openalex:W3014983830](https://www.wikidata.org/wiki/openalex:W3014983830)  
**Source**: https://4ort.xyz/entity/uniformity-and-isotropy-of-speckle-pattern-cause-the-doubled-random-error-phenomenon-in-digital-image-correlation