id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
work_aeoaaoul6bds7ptd7526pgnjwi	F Chianucci	Digital hemispherical photography for estimating forest canopy properties: current controversies and opportunities	2012.0	6	.pdf	application/pdf	6786	782	54	Indirect methods enable estimation of forest canopy properties by measurements of strengths and weakness of the method; (iii) provide an reliable protocol for image acquisition and analysis, to get the most out of using hemispherical photography for canopy properties extraction. Keywords: Digital Hemispherical Photography, Fisheye Lens, Leaf Area Index, digital hemispherical photography for indirect quantification of forest canopy properties (Breda 2003, Macfarlane et al. strongly affects forest canopy properties estimates in both film and digital cameras studies found that the foliage angle distribution calculated from hemispherical photography appeared sensitive to canopy structure (Chen & Black 1991, Macfarlane et al. Digital hemispherical photography for forest canopy estimation Digital hemispherical photography for forest canopy estimation comparison of direct and indirect methods for estimating forest canopy leaf area. Digital hemispherical photography for estimating forest canopy properties: current controversies and opportunities Digital hemispherical photography for estimating forest canopy properties: current controversies and opportunities	./cache/work_aeoaaoul6bds7ptd7526pgnjwi.pdf	./txt/work_aeoaaoul6bds7ptd7526pgnjwi.txt