搜索结果: 151-165 共查到“工学 UAV”相关记录270条 . 查询时间(0.062 秒)
ACCURACY ASSESSMENT IN STRUCTURE FROM MOTION 3D RECONSTRUCTION FROM UAV-BORN IMAGES:THE INFLUENCE OF THE DATA PROCESSING METHODS
3D Surveying Low cost UAV Laser Scanner Structure from Motion Accuracy
2015/9/10
The evolution of Structure from Motion (SfM) techniques and their integration with the established procedures of classic stereoscopic photogrammetric survey have provided a very effective tool for the...
PRELIMINARY RESULTS FROM THE PORTABLE IMAGERY QUALITY ASSESSMENT TEST FIELD (PIQuAT) OF UAV IMAGERY FOR IMAGERY RECONNAISSANCE PURPOSES
UAV IMINT Quality assessment Test Field Remote sensing miniMC
2015/9/10
The article presents a set of initial results of a quality assessment study of 2 different types of sensors mounted on an unmanned aerial vehicle, carried out over an especially designed and construct...
PORTABLE IMAGERY QUALITY ASSESSMENT TEST FIELD FOR UAV SENSORS
UAV image quality quality assessment portable test field sensor resolution remote sensing
2015/9/10
Nowadays the imagery data acquired from UAV sensors are the main source of all data used in various remote sensing applications, photogrammetry projects and in imagery intelligence (IMINT) as well as ...
COMPARISON BETWEEN MULTICOPTER UAV AND TOTAL STATION FOR ESTIMATING STOCKPILE VOLUMES
Total station Multicopter uav Data acquisition Comparison Stockpile Volumes
2015/9/10
Currently the UAV (Unmanned Aerial Vehicle) have become an alternative for different engineering applications, especially in surveying, one of these applications is the calculation of volumes of stock...
THE DIRECT GEOREFERENCING APPLICATION AND PERFORMANCE ANALYSIS OF UAV HELICOPTER IN GCP-FREE AREA
GeoSat Informatics Technology Corporation National Cheng Kung University The University of Calgary Purdue University
2015/9/10
There are many disasters happened because the weather changes extremely in these years. To facilitate applications such as environment detection or monitoring becomes very important. Therefore, the de...
INDICATOR SPECIES POPULATION MONITORING IN ANTARCTICA WITH UAV
Indicator species penguins monitoring Antarctica UAV
2015/9/10
A program to monitor bird and pinniped species in the vicinity of Arctowski Station, King George Island, South Shetlands, Antarctica, has been conducted over the past 38 years. Annual monitoring of th...
UAV POSITIONING AND COLLISION AVOIDANCE BASED ON RSS MEASUREMENTS
UAV Positioning Collision avoidance RPAS Statistical filtering
2015/9/10
In recent years, Unmanned Aerial Vehicles (UAVs) are attracting more and more attention in both the research and industrial communities: indeed, the possibility to use them in a wide range of remote s...
WILDLIFE MULTISPECIES REMOTE SENSING USING VISIBLE AND THERMAL INFRARED IMAGERY ACQUIRED FROM AN UNMANNED AERIAL VEHICLE (UAV)
Wildlife Census Multispecies Detection Unmanned Aerial Vehicle Multicriteria Object-Based Image Analysis Visible and Thermal Infrared Imagery
2015/9/10
Wildlife aerial surveys require time and significant resources. Multispecies detection could reduce costs to a single census for species that coexist spatially. Traditional methods are demanding for o...
DEVELOPMENT AND EVALUATION OF A UAV BASED MAPPING SYSTEM FOR REMOTE SENSING AND SURVEYING APPLICATIONS
Direct georeferencing UAV RTK GPS GPS Compass IMU Magnetometer Camera synchronization
2015/9/10
In recent years, unmanned aerial vehicles (UAVs) have increasingly been used in various application areas, such as in the remote sensing or surveying. For these applications the UAV has to be equipped...
REFLECTANCE ANISOTROPY MEASUREMENTS USING A PUSHBROOM SPECTROMETER MOUNTED ON UAV AND A LABORATORY GONIOMETER–PRELIMINARY RESULTS
UAV Hyperspectral Pushbroom BRF BRDF Goniometer
2015/9/10
During 2014–2015 we have developed a new method to measure reflectance factor anisotropy using a pushbroom spectrometer mounted on a multicopter UAV. In this paper/presentation we describe the acquisi...
OVERVIEW OF UAV ACTIVITIES IN WAGENINGEN UNMANNED AERIAL REMOTE SENSING FACILITY
UAV UARSF Hyperspectral Orthophoto DSM
2015/9/10
The WUR Unmanned Aerial Remote Sensing Facility (UARSF) (www.wageningenur.nl/uarsf ) is a co-operation organization of different groups within Wageningen University and Research Centre to use UAVs in ...
COMMON APPROACH TO GEOPROCESSING OF UAV DATA ACROSS APPLICATION DOMAINS
Geoprocessing Open Standards OGC UAV UAS
2015/9/10
UAVs are a disruptive technology bringing new geographic data and information to many application domains. UASs are similar to other geographic imagery systems so existing frameworks are applicable. B...
PLANAR CONSTRAINTS FOR AN IMPROVED UAV-IMAGE-BASED DENSE POINT CLOUD GENERATION
Image Matching Dense Point Cloud UAV Images Segmentation
2015/9/10
In this paper, we proposed a new refinement procedure for the semi-global dense image matching. In order to remove outliers and improve the disparity image derived from the semi-global algorithm, both...
HEIGHT GRADIENT APPROACH FOR OCCLUSION DETECTION IN UAV IMAGERY
UAV DSM TIN Double Mapping Height Gradient Occlusion Detection True Orthophoto
2015/9/10
The use of Unmanned Aerial Vehicle (UAV) significantly increased in the last years. It is used for several different applications, such as mapping, publicity, security, natural disasters assistance, e...
POTENTIAL OF UAV BASED CONVERGENT PHOTOGRAMMETRY IN MONITORING REGENERATION STANDARDS
UAV point clouds regeneration forest management stocking space occupancy height free-to-grow
2015/9/10
Several thousand hectares of forest blocks are regenerating after harvest in Canada. Monitoring their performance over different stages of growth is critical in ensuring future productivity and ecolog...