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POSE ESTIMATION AND MAPPING USING CATADIOPTRIC CAMERAS WITH SPHERICAL MIRRORS
Close Range Photogrammetry Catadioptric cameras Pose estimation Spherical mirrors
2016/7/27
Catadioptric cameras have the advantage of broadening the field of view and revealing otherwise occluded object parts. However, they differ geometrically from standard central perspective cameras beca...
AUTOMATIC KAPPA ANGLE ESTIMATION FOR AIR PHOTOS BASED ON PHASE ONLY CORRELATION
Kappa Phase-Only Matching Azimuth Strip Image Space Object Space
2016/7/27
The approximate value of exterior orientation parameters is needed for air photo bundle adjustment. Usually the air borne GPS/IMU can provide the initial value for the camera position and attitude ang...
TREE HEIGHT ESTIMATION METHODS FOR TERRESTRIAL LASER SCANNING IN A FOREST RESERVE
Terrestrial Laser scanning Forestry Photogrammetry Modelling Single tree
2015/11/10
A terrestrial laser scanning survey has been performed on a forest reserve site. This paper represents the processing of the dataset. Two new methods have been developed for tree positioning, which is...
LEAF AREA INDEX ESTIMATION IN VINEYARDS FROM UAV HYPERSPECTRAL DATA,2D IMAGE MOSAICS AND 3D CANOPY SURFACE MODELS
Precision agriculture biomass crop narrow band indices
2015/9/10
The indirect estimation of leaf area index (LAI) in large spatial scales is crucial for several environmental and agricultural applications. To this end, in this paper, we compare and evaluate LAI est...
ESTIMATION OF INTERIOR ORIENTATION AND ECCENTRICITY PARAMETERS OF A HYBRID IMAGING AND LASER SCANNING SENSOR
Calibration Terrestrial laser scanning Hybrid measurement system Sensor fusion
2015/7/31
Nowadays hybrid imaging and laser scanning sensors are common for terrestrial surveying purposes. The basic idea is to complement laser scanning, which directly yields 3D information, with digital ima...
Camera Calibration with Radial Variance Component Estimation
Camera Calibration Geometrical Accuracy Variance Component Estimation UAV System Evaluation
2014/12/4
Camera calibration plays a more and more important role in recent times. Beside real digital aerial survey cameras the photogrammetric market is dominated by a big number of non-metric digital cameras...
ESTIMATION OF TREE STEM ATTRIBUTES USING TERRESTRIAL PHOTOGRAMMETRY
Measurement Image Algorithms Forestry Inventory Point Cloud Close Range Method
2014/4/28
The objective of this work was to create a method to measure stem attributes of standing trees on field plots in the forest using terrestrial photogrammetry. The primary attributes of interest are the...