A Point and Line Features Based Method for Disturbed Surface Motion Estimation

2017 ◽  
pp. 133-140
Author(s):  
Xiang Li ◽  
Yue Zhou
Keyword(s):  
Motion Estimation ◽  
Surface Motion ◽  
Line Features

scholarly journals Glacier Surface Motion Estimation from SAR Intensity Images Based on Subpixel Gradient Correlation

Sensors ◽  
2020 ◽  
Vol 20 (16) ◽  
pp. 4396
Author(s):  
Li Fang ◽  
Zhen Ye ◽  
Shu Su ◽  
Jian Kang ◽  
Xiaohua Tong
Keyword(s):  
Motion Estimation ◽  
Estimation Method ◽  
Correlation Method ◽  
Image Correlation ◽  
Matching Method ◽  
Glacier Surface ◽  
Surface Motion ◽  
Alpine Regions ◽  
Intensity Images ◽  
Comparative Results

With the current extensive availability of synthetic-aperture radar (SAR) datasets with high temporal (e.g., a repeat cycle of a few or a dozen days) and spatial resolution (e.g., in the order of ∼1 m), radar remote sensing possesses an increasing potential for the monitoring of glacier surface motion thanks to the nearly weather and time-independent advantages. This paper proposes a robust subpixel frequency-based image correlation method for dense matching and integrates the improved matching into a workflow of glacier surface motion estimation using SAR intensity images with specific pre-processing and post-processing steps. The proposed matching method combines complex edge maps and local upsampling in the frequency domain for subpixel intensity tracking, which ensure the accuracy and robustness of glacier surface motion estimation. Experiments were carried out with TerraSAR-X and Sentinel-1 images covering two glacier areas in pole and alpine regions. The results of the monitoring and investigation of glacier motion validate the feasibility and reliability of the presented motion estimation method based on subpixel gradient correlation. The comparative results using both simulated and real SAR data indicate that the proposed matching method outperforms commonly used correlation-based matching methods in terms of matching accuracy and the ability to obtain correct matches.

scholarly journals Vehicle-type motion estimation by the fusion of image point and line features

1998 ◽  
Vol 31 (3) ◽  
pp. 333-344 ◽  
Author(s):  
Soo-chang Pei ◽  
Liou Lin-gwo
Keyword(s):  
Motion Estimation ◽  
Image Point ◽  
Vehicle Type ◽  
Line Features

scholarly journals Shelf Surface Motion Estimation from Repeat Satellite Imagery

2013 ◽  
Vol 9 (S7) ◽  
pp. 43
Author(s):  
Yi Liu ◽  
Yan Fei ◽  
Weian Wang
Keyword(s):  
Motion Estimation ◽  
Satellite Imagery ◽  
Surface Motion

Cortical Surface Motion Estimation for Brain Shift Prediction

2010 ◽  
pp. 53-62 ◽  
Author(s):  
Grand Roman Joldes ◽  
Adam Wittek ◽  
Karol Miller
Keyword(s):  
Motion Estimation ◽  
Cortical Surface ◽  
Brain Shift ◽  
Surface Motion

Dynamic online visualization of PS-InSAR surface motion estimation results using WebGL

2016 ◽  
Vol 8 (2) ◽  
pp. 126-135
Author(s):  
Dong Liang ◽  
Timo Balz ◽  
Ziyun Wang ◽  
Lianhuan Wei ◽  
Mingsheng Liao
Keyword(s):  
Motion Estimation ◽  
Surface Motion
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