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A NOVEL TECHNIQUE FOR PRECISION GEOMETRIC CORRECTION OF JITTER DISTORTION FOR THE EUROPA IMAGING SYSTEM AND OTHER ROLLING-SHUTTER CAMERAS
Europa photogrammetry jitter geometric correction active-pixel sensors
2018/5/14
We use simulated images to demonstrate a novel technique for mitigating geometric distortions caused by platform motion (“jitter”) as two-dimensional image sensors are exposed and read out line by lin...
A ROBUST METHOD FOR FUNDAMENTAL MATRIX ESTIMATION WITH RADIAL DISTORTION
Machine Vision 3D Reconstruction Robust Method Fundamental Matrix Epipolar Geometry SVD
2018/5/16
Fundamental Matrix Estimation is of vital importance in many vision applications and is a core part of 3D reconstruction pipeline. Radial distortion makes the problem to be numerically challenging. We...
CRITICAL ASSESSMENT OF CORRECTION METHODS FOR FISHEYE LENS DISTORTION
Fisheye Lens Distortion Camera Calibration,Critical Assessment
2016/7/4
A fisheye lens is widely used to create a wide panoramic or hemispherical image. It is an ultra wide-angle lens that produces strong visual distortion. The distortion modeling and estimation of the fi...
ANALYSE ON IMAGE DISTORTION CAUSED BY CAMERA TILTING ANGLE IN MOSAIC CAMERA
camera mosaic tilting angle image distortion Two-Mosaic Four-Mosaic ratio of GSD change
2016/3/17
Digital aerial photogrammetry has the virtue of high precision and efficiency, but the plane array of single digital camera is not wide enough, so the land coverage and base-height ratio of singledigi...
Experiment on parameter selection of image distortion model
Calibration Simulation Camera Digital Non-Metric Distortion Model Experiment
2015/8/24
Most of current camera calibration methods for a non-metric digital camera adopt polynomials of image coordinates composed of terms representing the correction to the principal distance, the offsets o...
Geometric programming duals of channel capacity and rate distortion
Channel capacity convex optimization duality free energy geometric programming rate distortion
2015/8/11
We show that the Lagrange dual problems of the channel capacity problem with input cost and the rate distortion problem are simple geometric programs. Upper bounds on channel capacity and lower bounds...
Creation of Distortion Model for Digital Camera (dmdc) based On 2d Dlt
digital distortion model
2015/7/15
It is once again presented and discussed in this paper that the method of distortion calibration based on 2D Direct Linear
Transformation (DLT) is easy and feasible. It is emphasized that it is fit f...
AN OBJECT SPACE TECHNIQUE INDEPENDENT OF LENS DISTORTION FOR FORENSIC VIDEOGRAMMETRY
Calibration Applications Information Extraction Performance Analysis
2015/1/6
Video recording is widely used to capture images in locations prone to criminal activity, for example banking institutions. A vital piece of forensic evidence can often be the height determination of ...
CORRECTION OF NON-LINEAR DISTORTION IN DIGITAL IMAGES USING A PROPOSED NORMALIZATION ALGORITHM
Algorithms Corrections Sensors
2014/12/29
In this paper, image formation will be investigated in detail. Data captured is a representation of data collected by two kinds of sensors widely in use in remotely sensed image processing application...
Quality Assessment of Self-Calibration with Distortion Estimation for Grid Point Images
Self-Calibration Grobner basis Bundle Adjustment Image Distortion Planar Pattern Performance Analysis
2014/9/9
Recently, a camera self-calibration algorithm was reported which solves for pose, focal length and radial distortion using a minimal set of four 2D-to-3D point correspondences. In this paper, we prese...
Method for Measuring Lens Distortion by Using Pinhole Lens
Metrology Vision Camera Calibration Correlation Distortion Pinhole
2014/7/30
In photogrammetric applications, the measurements are conducted on images given by optical imaging systems (cameras). In order to ensure the demanded accuracy, those cameras have to be well calibrated...
DISTORTION DISTRIBUTION AND CONVERGENCE ANALYSIS OF SPHERICAL DIAMOND DISCRETE GRIDS
Global Discrete Grid Spherical Diamond Discrete Grid Distortion Distribution Convergence Analysis Electrical Potential Energy
2014/4/21
Four kinds of subdivision methods of Global Discrete Grid are presented in this paper. Furthermore, we systematically and
comprehensively compare and analyze the distortion distribution and converge...
A GLOBAL HIERARCHICAL AND EQUAL-AREA SHPERE/ ELLIPSOID GRID AND ITS GEOMETRY DISTORTION ANALYSIS
Global Discrete Gird Hierarchical Grid Equal-Area Snyder Projection Geometry Distortion Analysis Sphere Surface
2014/4/21
A spatial data management and analysis frame is required for global problem application. Global Discrete Grid (GDG) has seamless,
excellent hierarchy characteristics. GDG has been used for spatial d...
Experiments of effects of inlet-air distortion on aerodynamic performance in transonic
plugboard simulator inlet-air distortion transonic axial-flow compressor shock wave disturbance
2014/5/19
The inlet-air distortion which was caused by high angle-of-attack flight was simulated by plugboard.Experiments were conducted on a transonic axial-flow compressor's rotor at 98% rotating speed.The fl...
A Low Complexity Pre-Distortion Method for Intra-channel Nonlinearity
Low Complexity Pre-Distortion Method Intra-channel Nonlinearity
2015/5/21
We propose a low complexity intra-channel nonlinearity pre-distortion method based on symbol rate operation. The method is experimentally verified under a 43Gb/s DP-QPSK coherent system, and the perfo...