搜索结果: 1-13 共查到“工学 Spectral reflectance”相关记录13条 . 查询时间(0.125 秒)
DETERMINING SPECTRAL REFLECTANCE COEFFICIENTS FROM HYPERSPECTRAL IMAGES OBTAINED FROM LOW ALTITUDES
hyperspectral camera spectral reflectance coefficients spectral characteristic UAV aerial push-broom scanner radiometric correction
2016/11/23
Remote Sensing plays very important role in many different study fields, like hydrology, crop management, environmental and ecosystem studies. For all mentioned areas of interest different remote sens...
A MULTIVARIATE REGRESSION ANALYSIS FOR DERIVING ENGINEERING PARAMETERS OF EXPANSIVE SOILS FROM SPECTRAL REFLECTANCE
Expansive soils PLSR spectroscopy engineering parameters absorption feature parameters
2016/1/3
Soil expansiveness is a major problem that need due attention in geotechnical investigations. It can detrimentally influence performance and life time of lightweight engineering infrastructures. For t...
THE TEMPORAL CHANGING INFORMATION EXTRACTION ON SPECTRAL REFLECTANCE AND GROWTH PARAMETERS OF TYPICAL CROPS
A Priori Knowledge Spectral Reflectance Leaf Area Index Vegetation Index Model Inversion
2015/12/31
When we estimate the land surface variables by remote sensing model inversion, a priori knowledge is needed for given the initial values of the model parameters to be retrieved. In this paper, based o...
CORRELATION ANALYSIS BETWEEN INDICES OF TREE LEAF SPECTRAL REFLECTANCE AND CHLOROPHYLL CONTENT
Hyperspectral Remote Sensing Forestry Spectral Indices Simulation Correlation
2015/12/30
This study was conducted to investigate variations of leaf chlorophyll content and surface spectral reflectance of different tree species (Daphniphyllum glaucescens、Michelia formosana、Illicium dunnian...
SEMI-SUPERVISED CLASSIFICATION OF LAND COVER BASED ON SPECTRAL REFLECTANCE DATA EXTRACTED FROM LISS IV IMAGE
Semi-supervised classification Hyperspectral Reflectance
2015/8/28
A methodology is proposed for extracting information on land cover based on hyperspectral reflectance
data derived from satellite image, without supervising with ground truth. The reflectance percent...
Impact of the cameras radiometric resolution on the accuracy of determining spectral reflectance coefficients
Radiometric Resolution Camera Environment Acquisition Digital Image Precision Project IRAMSwater Spectral Reflectance Coefficient
2014/12/4
Nowadays remote sensing plays a very important role in many different study fields, i.e. environmental studies, hydrology, mineralogy, ecosystem studies, etc. One of the key areas of remote sensing ap...
Examining the possibility of correcting imagery acquired for the purpose of obtaining spectral reflectance coefficients in the infrared range using photometric measurements
Remote Sensing Measurement Calibration Multispectral Experiment
2014/12/4
The purpose of this paper is to determine the possibility of using photometric measurements in order to correct imagery acquired in the 900–1700 nm range. This imagery is acquired for the purpose of a...
Pre-processing of Xeva-XS imagery for determining spectral reflectance coefficients in laboratory conditions
Remote sensing Imagery Accuracy Processing Experiment
2014/12/4
There are two different methodologies which can be used to acquire imagery from which it would be possible to obtain spectral reflectance characteristics – the first based on images of a scene in whic...
METROLOGY OF IMAGE PROCESSING IN SPECTRAL REFLECTANCE MEASUREMENT BY UAV
Photogrammetry Radiometry Geometry Reflectance Metrology Remotely Piloted Aircraft System UAV
2014/4/21
Remote sensing based on unmanned airborne vehicles (UAVs) is rapidly developing field of technology. For many of potential UAV remote sensing applications, accurate reflectance measurements are requir...
Spectral Reflectance Characteristics of Different Snow and Snow-Covered Land Surface Objects and Mixed Spectrum Fitting
Snow Snow-covered land surface object Spectral characteristics Spectral fitting
2012/4/17
The field spectroradiometer was used to measure spectra of different snow and snow-covered land surface objects in Beijing area. The result showed that for a pure snow spectrum, the snow reflectance p...
The Spectral Reflectance Responses of Water with Different Levels of Suspended Sediment in The Presence of Algae
Suspended sediment Remote sensing Water quality Spectron, Algae
2009/10/10
Examining and measuring levels of suspended sediments of water column is a common application of close range remote sensing, because the technology offers an efficient and economical means of studying...
Effect of Color Sample Lightness on the Performance of PCA Method in Representation of Spectral Reflectance
Principal component analysis Spectral reflectance Lightness
2009/4/22
Principal component analysis (PCA) has been used in color technology over 50 years. Along these years many researches have been done to find out new usages or improve its shortcomings in different a...
Relationship Between Spectral Reflectance and Leaf Area Index in Needleleaf Forest :the Effect of Three-Dimensional Forest Structure and Clumping
LAI FAPAR BRF radiative transfer forest 3-D effect
2010/11/24
Toward the reliable estimation of leaf area index (LAI) and fraction of absorbed photosynthetically active radiation (FAPAR), the relationship between LAI/FAPAR and bidirectional reflectance factor (B...