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STUDY OF THE INTEGRATION OF LIDAR AND PHOTOGRAMMETRIC DATASETS BY IN SITU CAMERA CALIBRATION AND INTEGRATED SENSOR ORIENTATION
Integrated Sensor Orientation Direct Sensor Orientation In situ Calibration Photogrammetry Lidar
2017/7/13
Photogrammetric and Lidar datasets should be in the same mapping or geodetic frame to be used simultaneously in an engineering project. Nowadays direct sensor orientation is a common procedure used in...
CAMERA CALIBRATION ACCURACY AT DIFFERENT UAV FLYING HEIGHTS
Camera calibration accuracy assessment object distances UAV flying heights
2017/4/6
Unmanned Aerial Vehicles (UAVs) can be used to acquire highly accurate data in deformation survey, whereby low-cost digital cameras are commonly used in the UAV mapping. Thus, camera calibration is co...
A NOVEL APPROACH TO CAMERA CALIBRATION METHOD FOR SMART PHONES UNDER ROAD ENVIRONMENT
Road Lane Markers Machine Learning Camera Calibration Smart Phone
2016/11/11
Monocular vision-based lane departure warning system has been increasingly used in advanced driver assistance systems (ADAS). By the use of the lane mark detection and identification, we proposed an a...
SINGLE IMAGE CAMERA CALIBRATION IN CLOSE RANGE PHOTOGRAMMETRY FOR SOLDER JOINT ANALYSIS
Solder Paste Photogrammetry Camera Calibration 3D-Target Image Processing Printed Circuit Board Jet Printing Inspection
2016/7/27
Printed Circuit Boards (PCB) play an important role in the manufacturing of electronic devices. To ensure a correct function of the PCBs a certain amount of solder paste is needed during the placement...
The New Approach to Camera Calibration–GCPs or TLS Data?
Calibration OpenCV BLOB Detectors Corner Detectors TLS calibration field
2016/7/27
Camera calibration is one of the basic photogrammetric tasks responsible for the quality of processed products. The majority of calibration is performed with a specially designed test field or during ...
TWO-STEP CAMERA CALIBRATION METHOD DEVELOPED FOR MICRO UAV'S
Photogrammetry two-step camera calibration micro UAV ultra wide lenses
2016/7/5
The development of unmanned aerial vehicles (UAVs) and continuous price reduction of unmanned systems attracted us to this research. Professional measuring systems are dozens of times more expensive a...
SUB-CAMERA CALIBRATION OF A PENTA-CAMERA
self calibration penta camera bundle block adjustment
2016/3/25
Penta cameras consisting of a nadir and four inclined cameras are becoming more and more popular, having the advantage of imaging also facades in built up areas from four directions. Such system camer...
The EuroSDR Approach on Digital Airborne Camera Calibration and Certification
Digital Camera Calibration Validation Certification Standardization
2015/12/18
The comprehensive analysis of new digital airborne photogrammetric camera systems is an important topic right now. Faster than originally expected the new digital sensors phased into market and are al...
Integrated Range Camera Calibration Using Image Sequences from Hand-Held Operation
Imaging Systems 3D Sensors Calibration
2015/12/17
This article concentrates on the integrated self-calibration of both the interior orientation and the distance measurement system of a
time-of-flight range camera that employs amplitude-modulated, co...
Analyze of Mathematical Models for Digital Camera Calibration
Photogrammetry Close range Calibration
2015/12/17
By development of digital camera technologies and some capabilities of these cameras, development of models to contribute these
capabilities for close range photogrammetry needed. With these high res...
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...
Camera Calibration Based on Liquid Crystal Display (LCD)
Photogrammetry Camera Calibration Bundle Adjustment Surveying Accuracy
2015/12/8
This paper presents a novel calibration method based on Liquid Crystal Display (LCD). As a planar pattern, 2D Direct Linear Transformation (2D-DLT) and Self-calibration Bundle Adjustment are used for ...
Photogrammetric camera calibration software-a comparison
Close-Range Photogrammetry Digital Camera Camera Calibration
2015/8/25
Camera calibration is a main feature in photogrammetric 3-D object restitution. Calibration parameters such as principal distance,principal point and lens distortion are usually determined by a self-c...
Digital camera calibration methods: considerations and comparisons
Camera calibration Accuracy Zoom Distortion
2015/8/24
Camera calibration has always been an essential component of photogrammetric measurement, with self-calibration nowadays being an integral and routinely applied operation within photogrammetric triang...
Panoramic Camera Calibration Using 3D Straight Lines
Panoramic Camera Calibration Straight Line Feature Multi-Projection Center Image Accuracy Test
2015/7/31
Linear array CCD - based panoramic cameras are being used for measurement applications. The elegant image acquisition mode and the high information content of those images make them suitable candidate...