搜索结果: 1-15 共查到“Distortion”相关记录53条 . 查询时间(0.078 秒)
A ROBUST METHOD FOR FUNDAMENTAL MATRIX ESTIMATION WITH RADIAL DISTORTION
Machine Vision 3D Reconstruction Robust Method Fundamental Matrix Epipolar Geometry SVD
2018/4/30
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...
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...
DISTORTION DISTRIBUTION AND CONVERGENCE ANALYSIS OF SPHERICAL DIAMOND DISCRETE GRIDS
Global Discrete Grid Spherical Diamond Discrete Grid Distortion Distribution Convergence Analysis Electrical Potential Energy
2013/4/21
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
2013/4/21
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...
A Low Complexity Pre-Distortion Method for Intra-channel Nonlinearity
Low Complexity Pre-Distortion Method Intra-channel Nonlinearity
2011/5/21
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...
Long-Distance Standard Single-Mode Fiber Transmission of 40-Gbit/s 16QAM Signal with Optical Delay-Detection and Digital Pre-Distortion of Chromatic Dispersion
Long-Distance Standard Single-Mode Fiber Transmission Optical Delay-Detection and Digital Pre-Distortion Chromatic Dispersion
2011/5/21
Dispersion pre-distorted 40-Gbit/s 16QAM transmissions over 800-km standard-single mode fiber(~13300 ps/nm) using delay detection is demonstrated with large tolerance to laser phase noise (1-MHz linew...
Pulsed Fiber-MOPA source operating at 1550 nm with pulse distortion pre-compensation
Pulsed Fiber-MOPA source operating pulse distortio pre-compensation
2011/5/20
In this paper we present a diode-seeded pulsed Fiber-MOPA source operating in the telecommunication band with pulse distortion pre-compensation using arbitrary shaped input pulses. 100 ns long flat-to...
Intermodulation and Harmonic Distortion in Slow Light SOA based Microwave Photonic Phase Shifters
Intermodulation Harmonic Distortion Microwave Photonic Phase Shifters
2011/5/15
We theoretically and experimentally evaluate the harmonic and intermodulation distortion in a SFL phase shifter which comprises an EOM, a SOA under CPO regime and an optical filter.
XPM-Induced Spectral Distortion in High Efficiency,Picosecond,Fiber Optical Parametric Oscillators
XPM-Induced Spectral Distortion High Efficiency Fiber Optical Parametric Oscillators
2011/5/15
We describe a 230nm tunable fiber optical parametric oscillator (FOPO) using an 8ps pump laser. The FOPO generates 2-4ps pulses with conversion efficiency as high as 20%. The output spectrum exhibits ...
Novel Statistical Modeling, Analysis and Implementation of Rate-Distortion Estimation for H.264/AVC Coders
Novel Statistical Modeling Analysis Rate-Distortion Estimation
2010/6/30
Novel Statistical Modeling, Analysis and Implementation of Rate-Distortion Estimation for H.264/AVC Coders.
Rate-distortion Optimized Transform for Intra-frame Coding
Rate-distortion Optimized Transform Intra-frame Coding
2010/6/30
In this paper, a novel algorithm is proposed for intra-frame coding, named as rate-distortion optimized transform (RDOT). Unlike existing intra-frame coding schemes where the transform matrices are ei...
Electronic Pre-Distortion Operating at 1 Sample/symbol with Accurate Bias Control for CD Compensation
Coherent communications Fiber optics links subsystems
2010/6/9
Electronic pre-distortion operating at 1 Sa/sym with anti-aliasing filter and accurate bias control is proposed. This approach guarantees Q penalty within 0.7 dB for 112 Gb/s DP-QPSK coherent system w...
Using a Microcontroller to Optimize the Bias Voltage of Balanced Photodiodes to Minimize Even-Order Distortion in Analog Fiber-Optic Links
Radio frequency photonics Photodiodes Fiber optic links subsystems
2010/6/4
Use of a microcontroller-based bias board for balanced photodiodes improves even-order distortion cancellation due to voltage dependent responsivity nonlinearities.The bias board improves the second o...
Harmonic Distortion in Slow Light SOA based Microwave Photonic Phase Shifters
Fiber optics communications Fiber optics links subsystems
2010/6/4
We present a theoretical and experimental evaluation of any general order harmonic distortion in a SFL phase shifter based on CPO in a SOA and propose different optical filtering implementations for d...
The space-time distortion perceived subjectively during saccadic eye movements is an associative phenomenon of a transient shift of observer’s visual frame of reference from one position to another. H...