搜索结果: 1-14 共查到“测绘科学技术 Low altitude”相关记录14条 . 查询时间(0.164 秒)
RESEARCH ON THE KEY TECHNOLOGY OF LARGE SCALE MAPPING FROM LOW ALTITUDE PHOTOGRAMMETRY
Large-scale Photogrammetry Wide-angle Camera Elevation Accuracy Low Altitude Photogrammetry Production Process Low Altitude Photogrammetric DLG Production Multi-center Image Projection Reconstruction
2016/7/5
Based on the theoretic analysis of the accuracy in large scale photogrammetric mapping, some defects in traditional procedure were discussed. A set of key technologies dedicate to accuracy improvement...
NOVEL APPROACH FOR ESTIMATING NITROGEN CONTENT IN PADDY FIELDS USING LOW ALTITUDE REMOTE SENSING SYSTEM
Low altitude remote sensing Unmanned aerial vehicle Rice Vegetation index Nitrogen
2016/7/5
Concerns over the use of nitrogen have been increasing due to the high cost of fertilizers and environmental pollutions caused by excess nitrogen application in agricultural fields. Several methods ar...
LOW-ALTITUDE UNMANNED AIRSHIP PHOTOGRAMMETRY SYSTEM
Unmanned airship Combined wide-angle low attitude camera low-altitude photogrammetry
2016/3/17
Constrained by the satellites orbits, Satellite Remote Sensing is difficult to achieve timeliness requirements. General aerial manned aircraft Remote Sensing is always delayed by the bad weather.Compa...
Photogrammetric Processing of Low Altitude Image Sequences by Unmanned Airship
Image Sequence Close Range Photogrammetry Matching,
2015/12/17
Low altitude aerial image sequences have the advantages of high overlap, multi viewing and very high ground resolution. These
kinds of images can be used in various applications that need high precis...
A Contrast among Experiments in Three Low-altitude Unmanned Aerial Vehicles Photography: Security, Quality & Efficiency
Low altitude Aerial photography Photogrammetry Unmanned helicopter
2015/11/24
At present, the vast majority of photographic measurement units are in a state of "measuring" instead of "photographing". In order to combine "photographing" with "measuring" more closely, an engineer...
UAV for Mapping-Low Altitude Photogrammetric Survey
Photogrammetry Mapping UAV Automatic Aerial Triangulation Camera Calibration
2015/11/24
Two kinds of platform are accepted for mapping UAV system. One is remotely-piloted aircraft. Another is unmanned helium airship.A super-wide-angle camera is constructed by four digital cameras, mounte...
Actualize of Low Altitude Large Scale Aerophotography and Geodesic base on Fixed-Wing Unmanned Aerial Vehicle Platform
System Integration Aerial Photogrammetry Digital Orthophoto Orthophoto Mapping Aerial Triangulation
2015/11/23
This paper introduces the key technologies and methods of establishing the aerial photogrammetric system using Unmanned Aerial Vehicles (UVA) photogrammetry technique for satisfying the increasing nee...
Design and Actualization of the Aerial Photogrammetric System of the Low Altitude Unmanned Biplane
Autonomous Navigation Aerial Photography Non-Metric Digital Camera Calibration
2015/11/23
This paper designs and actualizes independently a set of the aerial photogrammetric system by the low altitude unmanned biplane for satisfying with the request of three-dimensional stereoplotting and ...
3D BUILDING MODELING BASED ON LOW ALTITUDE MAPPING SYSTEM
Mapping Photogrammetry Texture Triangulation Building System
2014/4/25
The development and application of the mapping system with low altitude develops a new 3D city modeling technology means. 3D modeling method with low altitude has high efficiency, low cost, short cycl...
RELATIVE ORIENTATION IN LOW ALTITUDE PHOTOGRAMMETRY SURVEY
Relative orientation UAV Eight-point method RANSAC DCR
2014/4/25
Relative orientation is always considered as a key technique, not only in traditional photogrammetry, but also in low altitude photogrammetry. Low altitude images are mainly obtained by general digita...
UAV BORNE LOW ALTITUDE PHOTOGRAMMETRY SYSTEM
Photogrammetry Surveying System Aerial Platforms Camera Software
2014/4/25
In this paper，the aforementioned three major aspects related to the Unmanned Aerial Vehicles (UAV) system for low altitude aerial photogrammetry, i.e., flying platform, imaging sensor system and data ...
APPLICATION OF UAV SYSTEM FOR LOW ALTITUDE PHOTOGRAMMETRY IN SHANXI
UAV Camera Calibration Orientation Adjustment Accuracy
2014/4/25
Recent years, as the urgent demands of the state and society for high-resolution aerial images and large-scale DLG (Digital Line Graphic), UAV borne low-altitude Photogrammetry system are used more an...
COMPARISON OF LOW ALTITUDE PHOTOGRAMMETRIC METHODS FOR OBTAINING DEMS AND ORTHOIMAGES OF ARCHAEOLOGICAL SITES
Cultural heritage archaeology comparison TLS DEM/DTM orthoimage aerial photographs
2014/4/28
In this work it is performed a comparison of two methods for obtaining digital elevation models (DEMs) and orthoimages of medium-sized archaeological sites (500-5000 m2). The photogrammetric methods a...
OBJECT-BASED ANALYSIS AND MULTISPECTRAL LOW-ALTITUDE REMOTE SENSING FOR LOW-COST MAPPING OF CHALK STREAM MACROPHYTES
Classification Object Texture Multispectral Low Altitude Aerial Photography Submerged Vegetation
2014/6/12
Their small size and high biodiversity have until now made UK chalk streams unsuitable subjects for study with remote sensing techniques. Future technological developments are however likel...