搜索结果: 1-15 共查到“测绘科学技术 constraints”相关记录26条 . 查询时间(0.133 秒)
Line Matching Algorithm for Aerial Image Combining image and object space similarity constraints
Line matching Aerial Images Feature matching Similarity constraint
2016/7/28
A new straight line matching method for aerial images is proposed in this paper. Compared to previous works, similarity constraints combining radiometric information in image and geometry attributes i...
Incorporating scene constraints into the triangulation of airborne oblique images
Adjustment Bundle Calibration Comparison Orientation Software
2016/1/25
An increasing number of airborne systems equipped with oblique viewing cameras are reported being operational, such as Pictometry,
FLI-MAP, 3K or PFIFF. The oblique images are today mainly used for v...
Segmentation Optimization for Aerial Images with Spatial Constraints
Image Segmentation Optimization Methods Parameter Estimation
2015/12/16
Unsupervised segmentation methods are important to extract boundary features from large forest vegetation databases. Finding optimized segmentation algorithms for images with natural vegetation is cru...
Linear Constraints in Two-View Multiple Homography Estimation of Uncalibrated Scenes
Geometry Vision Homography Parameter estimation Video
2015/12/4
In this contribution, we present a method for direct linear estimation of multiple homographies and optimization of estimation results by enforcing topological constraints by means of connected compon...
Combination of Terrestrial Recording Techniques For 3D Object Modelling Regarding Topographic Constraints. Example of the Castle of Haut-Andlau, Alsace, France
Photogrammetry Laser scanning Comparison Combination Accuracy Cultural Heritage
2015/11/13
Perched on a granite rock, the Castle of Haut-Andlau is surrounded by forests and ditches which make its access difficult. Only after the first crumbling, the Lord of Andlau worried about its durabili...
ACCURACY OF FOREST PARAMETERS DERIVED FROM MEDIUM FOOTPRINT LIDAR UNDER OPERATIONAL CONSTRAINTS
LiDAR canopy height model (CHM) canopy closure degree of composition National Forest Inventory (NFI)
2015/11/10
The objective of this study is to test the feasibility of nation-wide medium footprint airborne laser scanning (ALS) data forderivation of forest parameters. The comparison of canopy closure as one im...
AUTOMATIC RELATIVE ORIENTATION OF TERRESTRIAL LASER SCANS USING PLANAR STRUCTURES AND ANGLE CONSTRAINTS
Relative orientation registration range images terrestrial laser scanning
2015/11/10
The relative orientation of independently acquired terrestrial laser scan point clouds is an important task. If good starting values are available, well-known iterative algorithms exist to determine t...
TERRESTRIAL LASER SCANNERS SELF-CALIBRATION STUDY: DATUM CONSTRAINTS ANALYSES FOR NETWORK CONFIGURATIONS
Terrestrial laser scanner self-calibration network configuration datum constraints
2015/11/3
Similar to other electronic instruments, terrestrial laser scanner (TLS) can also inherent with various systematic errors coming from different sources. Self-calibration technique is a method availabl...
TOWARDS SPECIALIZED INTEGRITY CONSTRAINTS FOR SPATIAL DATACUBES
Integrity Constraint Spatial Datacube Spatio-temporal Data Quality SOLAP Multidimensional Database
2015/9/28
Spatial datacubes (also called "spatial multidimensional databases") are the cornerstone of the emerging Spatial On-Line Analytical Processing (SOLAP) technology. They are aimed at supporting Geograph...
Documentation of cultural heritage; techniques, potentials, and constraints
Cultural Heritage Conservation Process Documentation
2015/9/11
Cultural Heritage is known as an invaluable asset of human being, which portrays his achievements over centuries. The need for
identification and preservation of cultural heritage is well understood ...
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...
CONSISTENT ESTIMATION OF BUILDING PARAMETERS CONSIDERING GEOMETRIC REGULARITIES BY SOFT CONSTRAINTS
Building Reconstruction Parameter Estimation Constraints
2015/8/31
This paper describes a model for the consistent estimation of building parameters that is a part of a method for automatic building reconstruction from airborne laser scanner (ALS) data. The adjustmen...
CONSISTENT ESTIMATION OF BUILDING PARAMETERS CONSIDERING GEOMETRIC REGULARITIES BY SOFT CONSTRAINTS
Building Reconstruction Parameter Estimation Constraints
2015/8/28
This paper describes a model for the consistent estimation of building parameters that is a part of a method for automatic building reconstruction from airborne laser scanner (ALS) data. The adjustmen...
CONSTRAINTS FOR MODELLING COMPLEX OBJECTS
Weak primitives constraint equation systems constraint graphs Grobner bases
2015/8/7
When complex scenes are modelled using measured data, such as mass data from laser scanners, the objects generated do not only have to fit the data, but also have to fulfill additional constraints, li...
Orthorectification of Spot Images with The Same-pass Constraints
Orthorectification Accuracy Imagery
2015/7/7
SPOT images are one of the most widely used satellite images in middle scale mapping applications for its stereo capability, wide
coverage area and well-known satellite model which is supported nearl...