Digital hemispherical photography for estimating forest canopy properties: current controversies and opportunities

被引：89

作者：

Chianucci, Francesco ^{[1
,2
]}

Cutini, Andrea ^{[1
]}

机构：

[1] Consiglio Ric & Sperimentaz Agr, Ctr Ric Selvicoltura, I-52100 Arezzo, Italy

[2] Univ Tuscia, Dept Innovat Biol Agrofood & Forestry Syst, I-01100 Viterbo, Italy

来源：

IFOREST-BIOGEOSCIENCES AND FORESTRY | 2012年 / 5卷

关键词：

Digital Hemispherical Photography; Fisheye Lens; Leaf Area Index; Radiative Transfer; Foliage Clumping; LEAF-AREA INDEX; FISHEYE PHOTOGRAPHY; EUCALYPT FOREST; COVER; FOLIAGE; LAI; METHODOLOGY; COMPUTATION; EXPOSURE; GEOMETRY;

D O I：

10.3832/ifor0775-005

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

Hemispherical photography has been used since the 1960s in forest ecology. Nevertheless, specific constraints related to film cameras have progressively prevented widespread adoption of this photographic method. Advances in digital photographic technology hold great promise to overcome the major draw-backs of hemispherical photography, particularly regarding field techniques and image processing aspects. This contribution is aimed to: (i) provide a basic foreground of digital hemispherical photography; (ii) illustrate the major 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.

引用

页码：290 / 295

页数：6

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