scholarly journals Instability of projection light source and real-time phase error correction method for phase-shifting profilometry

2018 ◽  
Vol 26 (4) ◽  
pp. 4258 ◽  
Author(s):  
Cheng Chen ◽  
Yingying Wan ◽  
Yiping Cao
Keyword(s):  
Error Correction ◽  
Real Time ◽  
Light Source ◽  
Phase Error ◽  
Correction Method ◽  
Phase Shifting ◽  
Error Correction Method

Phase Error Correction Method Based on Multi-Level Fringe Order Correction

2020 ◽  
Vol 57 (17) ◽  
pp. 171201
Author(s):  
石博 Shi Bo ◽  
刘宏立 Liu Hongli ◽  
马子骥 Ma Ziji
Keyword(s):  
Error Correction ◽  
Phase Error ◽  
Correction Method ◽  
Order Correction ◽  
Fringe Order ◽  
Error Correction Method ◽  
Multi Level

scholarly journals A Channel Phase Error Correction Method Based on Joint Quality Function of GF-3 SAR Dual-Channel Images

Sensors ◽  
2018 ◽  
Vol 18 (9) ◽  
pp. 3131 ◽  
Author(s):  
Guangcai Sun ◽  
Jixiang Xiang ◽  
Mengdao Xing ◽  
Jun Yang ◽  
Liang Guo
Keyword(s):  
Error Correction ◽  
Search Algorithm ◽  
Phase Error ◽  
Correction Method ◽  
Image Domain ◽  
Quality Function ◽  
Dual Channel ◽  
Heuristic Search Algorithm ◽  
Error Correction Method ◽  
Joint Quality

Multichannel SAR is an effective approach to solving the contradiction between high azimuth resolution and wide swath. The goal of this paper is to obtain a new and effective method for estimating and compensating the interchannel phase error of the Chinese GF-3 Synthetic aperture radar (SAR). A channel phase error correction method based on the optimal value of the image domain quality function is proposed. In this method, the phase error is initially compensated using the correlation function method. In the fine correction of dual-channel phase error, a heuristic search algorithm is used to estimate the residual phase by searching the extremum of the quality function. After phase compensation in the image domain, the azimuth ambiguities caused by the remaining phase are eliminated. The proposed image domain processing method provides a new idea for channel phase error correction. The measured data of high-resolution GF-3 dual-channel ultrafine imaging mode verifies the validity of this method.

Phase error correction method based on the Gaussian filtering algorithm and intensity variance

2021 ◽  
Vol 17 (4) ◽  
pp. 221-225
Author(s):  
Qian-qian Gu ◽  
Shan-shan Lü ◽  
Ming-shun Jiang ◽  
Lei Zhang ◽  
Fa-ye Zhang ◽  
...  
Keyword(s):  
Error Correction ◽  
Phase Error ◽  
Correction Method ◽  
Filtering Algorithm ◽  
Gaussian Filtering ◽  
Error Correction Method

Real-time error correction method combined with combination flood forecasting technique for improving the accuracy of flood forecasting

2015 ◽  
Vol 521 ◽  
pp. 157-169 ◽  
Author(s):  
Lu Chen ◽  
Yongchuan Zhang ◽  
Jianzhong Zhou ◽  
Vijay P. Singh ◽  
Shenglian Guo ◽  
...  
Keyword(s):  
Error Correction ◽  
Real Time ◽  
Flood Forecasting ◽  
Correction Method ◽  
Time Error ◽  
Error Correction Method
Sign in / Sign up

Export Citation Format

Share Document