搜索结果: 1-6 共查到“Hemispherical photography”相关记录6条 . 查询时间(0.093 秒)
LEAF AREA INDEX ESTIMATES OBTAINED FOR MIXED FOREST USING HEMISPHERICAL PHOTOGRAPHY AND HYMAP DATA
Hemisfer Camera Exposure Hyperspectral Data
2015/9/8
The Leaf Area Index (LAI) is an important measure in many ecological applications because vegetation-atmosphere processes of the
canopy, such as photosynthesis are controlled by the foliage and play ...
Comparison of automatic and interactive thresholding of hemispherical photography
image analysis LIA for Win32 light environment operator bias operator variation
2015/3/27
This study presents the effects of operator bias and variation in interactive thresholding on the estimation of light environment using hemispherical photography. Twenty-one hemispherical photographs ...
BATCH PROCESSING OF HEMISPHERICAL PHOTOGRAPHY USING OBJECT-BASED IMAGE ANALYSIS TO DERIVE CANOPY BIOPHYSICAL VARIABLES
digital hemispherical photography (DHP) leaf area index (LAI) batch processing maize CAN-EYE
2014/6/12
Hemispherical photography has received renewed interest to describe plant canopies and measure canopy gap fraction from which important biophysical variables such as leaf area index (LAI) can be deriv...
CALIBRATION OF FISHEYE LENSES FOR HEMISPHERICAL PHOTOGRAPHY
fisheye lens calibration of lens hemispherical photography solar radiation assessment of radiation
2009/11/25
Hemispherical photography represents one of the most appropriate methods of estimating averages of solar radiation over extended periods of time. This method is based upon the use of extremely wide-an...
SOLAR RADIATION MEASUREMENTS IN FORESTS-II. METHODS BASED ON THE PRINCIPLE OF HEMISPHERICAL PHOTOGRAPHY
solar radiation assessment silviculture horizontoscope hemispherical photography
2009/11/25
The know-how in the field of solar radiation distribution in forests is important for basic ecological investigations and silvicultural practice. Three methods of solar radiation assessment based on h...
Modelling longwave radiation to snow beneath forest canopies using hemispherical photography or linear regression
forest snow canopy radiation modelling longwave radiation hemispherical photography
2014/4/3
Forest canopies reduce shortwave radiation and increase longwave radiation reaching the underlying surface, compared with
open areas, and thus influence rates at which forest snowpacks melt. Th...