نتایج جستجو برای: 1 dtm dsm
تعداد نتایج: 2768511 فیلتر نتایج به سال:
BACKGROUND A national pharmacy benefits management company implemented a rheumatoid arthritis (RA) disease therapy management (DTM) program as an enhanced offering to patients receiving specialty pharmacy services. The program was designed to improve medication adherence, maximize therapeutic outcomes, and enhance physical functioning and health-related quality of life (HRQOL) by empowering pat...
Detailed high-resolution digital terrain models (DTM) can be obtained using airborne laser scanner data. This paper evaluates the accuracy of DTM derived from first return of laser scanner data for forest studies. Study area is located in a boreal forest zone. The data were acquired with TopoSys-1 under leaf-on condition. The study shows that the use of first pulse data for DTM generation in bo...
The Institute of Geodesy and Photogrammetry (IGP) is participating in the Cartosat-1 evaluation program, a common initiative of ISRO (India) and ISPRS. Within this program, various test sites with reference data have been established and Cartosat-1 images have been acquired over these sites. We have reported already about the Rome and Mausanne datasets in a former publication. Here, we report a...
Severe mechanical damage from frost and ice on trees occurred in the Börzsöny Mountains Northern Hungary during 1–2 December 2014. The affected 10,000 hectares overall; however, two examined valleys suffered conspicuously different extents of damage. While Rakottyás Valley study area had severe damage, Pogány-Rózsás Forest Reserve only moderate Airborne Laser Scanning (ALS) a field survey were ...
Abstract This paper discusses the lessons learnt from SmartKADASTER Phase II city model development project, specifically on reconstruction of LoD 1 CityGML models. The models were reconstructed using automated height extrusions, either by creating categorised point clouds or employing a raster-based equation such as CHM=DSM-DTM. methods for reconstructing LoD1 are further elaborated in this st...
This paper addresses forest height estimation for boreal forests at the test site of Edson in Alberta, Canada, using dual-baseline PolInSAR dataset measured by Intermap’s single-pass system. particular is acquired both ping-pong and non-ping-pong modes, which permit forming a TomoSAR configuration, i.e., an extreme configuration tomographic processing. A approach, based on polarimetric Capon MU...
This paper presents the DTM accuracy derived from JERS-1 SAR Interferometry based on the branch cut method. The target area were selected FUJI and FUGEN mountain in the volcanic mountaions. The accuracy of the calculated DTM is that maximum error and R.M.S.E were 217m, and 27.7m respectively. The accuracy weren’t better than theoretical values, but it is regarded as the next factor. (1) satelli...
مدل رقومی زمین(dtm)، یکی از ضروریات برای آنالیز و بصری سازی داده های مکانی است و نقش مهمی در نقشه سازی، مهندسی نقشه برداری و مدل سازی شهری سه بعدی دارد. از آنجایی که داده های لایدار شامل سطوح مختلف اشیا( ساختمان ها، پوشش گیاهی، وسایل نقلیه و...) می باشند اولین قدم برای تولید dtm به صورت اتوماتیک کلاسه بندی داده های به دست آمده از لیزر اسکن هوایی، به نقاط زمینی و غیر زمینی است. در اینصورت نقاط غ...
In recent years, the quality of high resolution acquisition platforms for geomatic applications has decidedly increased, especially in the performance of the sensors devoted to image acquisition. The small size of these new sensors combined with the increase in resolution allows them to be easily mounted onto Unmanned Aerial Vehicles (UAVs); in particular, calibrated, very-high-resolution digit...
High resolution (1.25 meter) ortho-rectified radar imagery (ORI) from an airborne InSAR platform was recently created for the whole of Great Britain as part of the NEXTMapUK program which simultaneuosly generated a DSM (Digital Surface Model) and DTM (Digital Terrain Model) with 5 meter samples, for the same national area. A similar initiative is underway in the USA. In order to provide a broad...
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