搜索结果: 1-15 共查到“测绘科学技术 planar”相关记录15条 . 查询时间(0.031 秒)
SCAN PROFILES BASED METHOD FOR SEGMENTATION AND EXTRACTION OF PLANAR OBJECTS IN MOBILE LASER SCANNING POINT CLOUDS
mobile laser scanning point clouds segmentation planarity scan profiles
2016/7/27
The demand for accurate spatial data has been increasing rapidly in recent years. Mobile laser scanning (MLS) systems have become a mainstream technology for measuring 3D spatial data. In a MLS point ...
Fully Automatic Camera Calibration Using Regular Planar Patterns
Automation Bundle Calibration Distortion
2015/12/14
Estimation of camera geometry represents an essential task in photogrammetry and computer vision. Various algorithms for recovering
camera parameters have been reported and reviewed in literature, re...
Calibration of a PMD-Camera Using a Planar Calibration Pattern Together with a Multi-Camera Setup
Close Range Photogrammetry 3D Sensors Computer Vision Calibration
2015/12/4
We discuss the joint calibration of novel 3D range cameras based on the time-of-flight principle with the Photonic Mixing Device (PMD) and standard 2D CCD cameras. Due to the small field-o...
Influence Factors Evaluation on High-precision planar Calibration of Non-metric Digital Camera
Camera calibration influence factors planar calibration
2015/11/23
With the rapid development of three-dimensional (3D) modelling, camera calibration is paid more and more attention. In this article, we analyse the influence factors in the calibration: the camera and...
PLANAR FEATURE EXTRACTION IN TERRESTRIAL LASER SCANS USING GRADIENT BASED RANGE IMAGE SEGMENTATION
Terrestrial Laser Scanning Range Images Segmentation
2015/11/10
The paper presents a new segmentation algorithm, to be applied to terrestrial lasers scans of urban environments. The algorithm works directly in a range image. This is the fundamental laser scan data...
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...
ON-SITE SELF-CALIBRATION USING PLANAR FEATURES FOR TERRESTRIAL LASER SCANNERS
Calibration Systematic error Planar targets Laser Scanning
2015/11/10
Terrestrial laser scanners provide a three-dimensional sampled representation (i.e. point cloud) of the surfaces of objects. They have great potential to improve the measurement and representation of ...
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...
DETECTION OF PLANAR PATCHES IN HANDHELD IMAGE SEQUENCES
planar patches homography feature detection degeneracy
2015/8/31
Coplanarity of points can be exploited in many ways for 3D reconstruction. Automatic detection of coplanarity is not a simple task however. We present methods to detect physically present 3D planes in...
DETECTION OF PLANAR PATCHES IN HANDHELD IMAGE SEQUENCES
planar patches homography feature detection degeneracy
2015/8/28
Coplanarity of points can be exploited in many ways for 3D reconstruction. Automatic detection of coplanarity is not a simple task however. We present methods to detect physically present 3D planes in...
Registration of terrestrial laserscanning data using planar patches and image data
LIDAR Laser scanning Terrestrial Registration Matching Fusion
2015/8/24
The fully automatic registration of terrestrial scan data is still a major topic for many research groups. Existent methods used in commercial software often use artificial markers which are pla...
ENCODING AND DECODING OF PLANAR MAPS THROUGH CONFORMING DELAUNAY TRIANGULATIONS
Planer Maps Conforming Delaunay Triangulations
2015/8/17
This paper describes a method to represent a Planar Map (PM) through a Conforming Delaunay Triangulation (CDT) with applications in a server-client environment. At the server a CDT of the edges of the...
The projector is being frequently used in broad range of the photogrammetric measurements with the development of non-contact
measurement in the close-range photogrammetry, because a projector can pr...
LINEAR RECOVERY OF THE EXTERIOR ORIENTATION PARAMETERS IN A PLANAR OBJECT SPACE
2-D Projective Transformation Linear Collinearity Model
2015/3/25
The Direct Linear Transformation (DLT) model requires 3-D object space control points to estimate the full set of its parameters that
can be used to recover exterior orientation parameters. The use ...
Segmentation of planar surfaces in LiDAR point clouds of an electrical substation by exploring the structure of points neighbourhood
Plane Segmentation LiDAR Point Cloud Processing
2014/7/30
According to the Department of Energy of the USA, today’s electrical distribution system is 97.97% reliable. However, power outages and interruptions still impact many people. Many power outages are c...