A novel method for extracting green fractional vegetation cover from digital images

Retrieval of leaf area index from top-of-canopy digital photography over agricultural crops

(2010) Jiangui Liu et al.   AGRICULTURAL AND FOREST METEOROLOGY

GAI estimates of row crops from downward looking digital photos taken perpendicular to rows at 57.5° zenith angle: Theoretical considerations based on 3D architecture models and application to wheat crops

(2010) F. Baret et al.   AGRICULTURAL AND FOREST METEOROLOGY

Reproducibility of species lists, visual cover estimates and frequency methods for recording high-mountain vegetation

(2010) Pascal Vittoz et al.   JOURNAL OF VEGETATION SCIENCE

Computer-aided calibration for visual estimation of vegetation cover

(2009) Åsa Gallegos Torell et al.   JOURNAL OF VEGETATION SCIENCE

Estimation of leaf area and clumping indexes of crops with hemispherical photographs

(2008) Valérie Demarez et al.   AGRICULTURAL AND FOREST METEOROLOGY

Budburst and leaf area expansion measured with a novel mobile camera system and simple color thresholding

(2008) Eric A. Graham et al.   ENVIRONMENTAL AND EXPERIMENTAL BOTANY