# Evaluating NIR-Red and NIR-Red edge external filters with digital cameras for assessing vegetation indices under different illumination

> Research article (Infrared Physics & Technology, 2017) · cited 50× · AI/ML

**Wikidata**: [openalex:W2570061837](https://www.wikidata.org/wiki/openalex:W2570061837)  
**Source**: https://4ort.xyz/entity/evaluating-nir-red-and-nir-red-edge-external-filters-with-digital-cameras-for-assessing-vegetation-indices-under-differe