搜索结果: 76-90 共查到“测绘科学技术 Comparison”相关记录168条 . 查询时间(0.14 秒)
AN INTER-COMPARISON OF SATELLITE BASED NOAA CPC RAINFALL ESTIMATES AND GAUGE OBSERVATIONS OVER SELECTED STATIONS IN INDIA
Validation Rainfall Gauge observations
2015/8/28
The spatial application of crop simulation models need grid based spatially distributed input of rainfall. The global products of
satellite based rainfall estimation can provide spatial maps on regul...
Photogrammetric camera calibration software-a comparison
Close-Range Photogrammetry Digital Camera Camera Calibration
2015/8/25
Camera calibration is a main feature in photogrammetric 3-D object restitution. Calibration parameters such as principal distance,principal point and lens distortion are usually determined by a self-c...
Comparison of DSMs generated from mini UAV imagery and terrestrial laserscanner in a cultural heritage application
UAV Laser scanning DEM/DTM Comparison Analysis Accuracy Archaeology
2015/8/24
In this paper we present two different methods, which were applied for the DSM generation of the cultural heritage site Pinchango Alto. The area of interest is a LIP (Late Intermediate Period; 1400 AD...
A COMPARISON OF FIVE POTENTIAL EVAPOTRANSPIRATION METHODS AND RELATIONSHIP TO NDVI FOR REGIONAL USE IN THE MONGOLIAN GRASSLAND
potential evaptoranspiration NDVI Mongolian grassland
2015/8/24
Potential evapotranspiration (PET) is an important parameter of water budgets at different spatial scales and is a critical variable
for understanding regional biological processes. It is often an i...
Comparison and analysis of remote sensing data fusion techniques at feature and decision levels
Remote Sensing Image Fusion Data Fusion
2015/8/21
Image fusion is the combination of two or more different images to form a new image by using a certain algorithm. The aim of
image fusion is to integrate complementary data in order to obtain more an...
A spatio-temporal assessment of back-barrier salt marsh change: a comparison of multidate aerial photography and spatial landscape indices
barrier island salt marsh aerial photography
2015/8/21
A study of back-barrier salt marshes was conducted to investigate whether or not urbanization has impacted the distribution and
fragmentation characteristics of the marshes. Topsail Island and Masonb...
Building ndvi-phenology comparison method to detect growing periods during 1982~1999a in northeast china
Growing Periods NDVI-Phenology Comparison Method AVHRR/NOAA NDVI data
2015/8/20
Plant phenology is an integraph of global changes and a comprehensive indicator of landscape and entironment changes, and its
responses to global environment changes have become a focus of the field ...
A comparison of the performance of fuzzy algorithm versus statistical algorithm based sub-pixel classifier for remote sensing data
Fuzzy c-Means (FCM) Possibilistic c-Means (PCM) Maximum Likelihood Classifier (MLC)
2015/8/20
It is found that sub-pixel classifiers for classification of multi-spectral remote sensing data yield a higher accuracy. With this
objective, a study has been carried out, where fuzzy set theory base...
Comparison of multi-scale images of an agricultural land using polygon-based classification techniques
Polygon-Based Image Classification High Resolution Agricultural
2015/8/20
Polygon-based classification was performed on multi-scale images of SPOT4 XS, SPOT5 XS, IKONOS XS, QuickBird XS and
QuickBird Pansharpaned (PS) covering an agricultural area located in Karacabey, Tur...
OBJECT ANALYSIS OF IKONOS XS AND PAN-SHARPENED IMAGERY IN COMPARISON FOR PURPOSE OF TREE SPECIES ESTIMATION
object image classification VHR satellite data texture analysis forest management
2015/8/19
Increasing demands on the level of accuracy, repeatability and cost are being made on large scale forest inventories during last years. The amount of terrestrial field work can be efficiently reduced ...
COMPARISON OF DIFFERENT MATHEMATICAL MODELS ON THE ACCURACY OF THE ORTHORECTIFICATION OF ASTER IMAGERY
ASTER Orthorectification Accuracy Mathematical Models
2015/8/17
The accuracy assessments of the orthorectification of ASTER imagery carried out using twelve different mathematical models are
presented. For performing the orthorectification, 77 ground control poi...
A COMPARISON OF OBJECT-ORIENTED AND PIXEL-BASED CLASSIFICATION APPROACHS USING QUICKBIRD IMAGERY
Object-oriented pixel-based Segmentation classification Quickbird
2015/8/10
Many studies have been carried out to find an appropriate method to classify the remote sensing data.Traditional classification approaches are all pixel-based, and do not utilize the spatial informati...
AUTOMATIC QUALITY ASSESSMENT OF GIS ROAD DATA USING AERIAL IMAGERY-A COMPARISON BETWEEN BAYESIAN AND EVIDENTIAL REASONING
Database GIS Imagery Networks Parameters Quality Reliability
2015/8/7
This paper describes the framework for automatic quality assessment of existing geo-spatial data. The necessary reference information is derived from up-to-date digital aerial images via automatic obj...
HIGH-RESOLUTION IMAGE RECTIFICATION AND MOSAICING–A COMPARISON BETWEEN PANORAMA CAMERA AND DIGITAL CAMERA
digital camera panorama panoramic imagery rectification orthophoto mosaicing
2015/7/31
The paper describes the acquisition and rectification of high-resolution images of a valuable stone mosaic in the city of Oldenburg.The piece of art is located on an outer wall of a school building, h...
THE USE OF ENVISAT ALTERNATING POLARIZATION SAR IMAGES IN AGRICULTURAL MONITORING IN COMPARISON WITH RADARSAT-1 SAR IMAGES
Agriculture SAR polarization satellite monitoring
2015/7/29
In this paper Envisat alternating polarization SAR images were used in the agricultural monitoring and yield damage assessment. The
main advantage of using synthetic aperture radar (SAR) is that sat...