搜索结果: 1-11 共查到“航空摄影测量 Estimation”相关记录11条 . 查询时间(0.285 秒)
UAV-BASED AUTOMATIC TREE GROWTH MEASUREMENT FOR BIOMASS ESTIMATION
UAV point cloud biomass estimation tree height
2016/11/30
Manual in-situ measurements of geometric tree parameters for the biomass volume estimation are time-consuming and economically non-effective. Photogrammetric techniques can be deployed in order to aut...
ESTIMATION OF STAND HEIGHT AND FOREST VOLUME USING HIGH RESOLUTION STEREO PHOTOGRAPHY AND FOREST TYPE MAP
Stand Height Forest Volume normalized DSM Aerial Photo
2016/11/30
Traditional field methods for measuring tree heights are often too costly and time consuming. An alternative remote sensing approach is to measure tree heights from digital stereo photographs which is...
New Approach for forest inventory estimation and timber harvesting planning in mountain areas: the SLOPE project
Digital Forest models 3D Terrestrial Laser scanning UAV Computer Graphics Forest production
2016/7/28
Forests represent an important economic resource for mountainous areas being for a few region and mountain communities the main form of income. However, wood chain management in these contexts differs...
EXTERIOR ORIENTATION ESTIMATION OF OBLIQUE AERIAL IMAGERY USING VANISHING POINTS
Oblique Aerial Images Vanishing Point Nadir Point True Horizon Line Exterior Orientation Georeferencing
2016/7/27
In this paper, a methodology for the calculation of rough exterior orientation (EO) parameters of multiple large-scale overlapping oblique aerial images, in the case that GPS/INS information is not av...
UNMANNED AERIAL VEHICLE USE FOR WOOD CHIPS PILE VOLUME ESTIMATION
Unmanned aerial vehicle wood chips pile DJI Phantom photogrammetry
2016/7/5
The rapid development of unmanned aerial vehicles is a challenge for applied research. Many technologies are developed and then researcher are looking up for their application in different sectors. Th...
INTEGRATION OF A GENERALISED BUILDING MODEL INTO THE POSE ESTIMATION OF UAS IMAGES
pose estimation hybrid bundle adjustment building model unmanned aerial system UAS
2016/7/5
A hybrid bundle adjustment is presented that allows for the integration of a generalised building model into the pose estimation of image sequences. These images are captured by an Unmanned Aerial Sys...
ESTIMATION OF THE ATMOSPHERIC REFRACTION EFFECT IN AIRBORNE IMAGES USING RADIOSONDE DATA
Atmosphere Refraction Airborne Multispectral Radiosonde Geometric Rectification
2016/7/4
The influence of the atmospheric refraction on the geometric accuracy of airborne photogrammetric images was already considered in the days of analogue photography. The effect is a function of the var...
ACCURACY OF CROWN SEGMENTATION AND ESTIMATION OF SELECTED TREES AND FOREST STAND PARAMETERS IN ORDER TO RESOLUTION OF USED DSM AND NDSM MODELS GENERATED FROM DENSE SMALL FOOTPRINT LIDAR DATA
Airborne Scanner System Segmentation Aerial photogrammetry Comparative analysis Forestry
2015/12/23
The purpose of this study is to categorize how different surface model resolutions impact the estimation of trees and forest stands parameters: number of recognized trees, crown area, treetop location...
ESTIMATION OF THE SPECTRAL SENSITIVITY FUNCTIONS OF UN-MODIFIED AND MODIFIED COMMERCIAL OFF-THE-SHELF DIGITAL CAMERAS TO ENABLE THEIR USE AS A MULTISPECTRAL IMAGING SYSTEM FOR UAVS
UAV Remote Sensing Multispectral COTS Spectral Sensitivity Open Source CHDK
2015/9/10
Commercial off-the-shelf (COTS) digital cameras on-board unmanned aerial vehicles (UAVs) have the potential to be used as multispectral imaging systems; however, their spectral sensitivity is usually ...
A FEASIBILITY STUDY ON USING ViSP’S 3D MODEL-BASED TRACKER FOR UAV POSE ESTIMATION IN OUTDOOR ENVIRONMENTS
UAV Close Range Photogrammetry Mapping Tracking Robotics Navigation Object Recognition Augmented Reality ViSP
2015/9/10
This paper presents a novel application of the Visual Servoing Platform’s (ViSP) for small UAV pose estimation in outdoor environments. Given an initial approximation for the camera position and orien...
Methodology of Cloud Height Estimation over Rugged Terrain using Landsat TM Imagery
cloud shadow solar position scan direction ortho-rectificaation
2009/3/17
Horizontal distance between a cloud and its shadow appeared in a satellite image over flat terrain has been used to estimate the cloud height. This paper describes methodology of the cloud height esti...