scholarly journals A feed‐forward framework integrating saliency and geometry discrimination for shadow detection in SAR images

2021 ◽  
Author(s):  
Haixiang Li ◽  
Xuelian Yu ◽  
Lin Zou ◽  
Yun Zhou ◽  
Xuegang Wang
Keyword(s):  
Shadow Detection ◽  
Sar Images ◽  
Feed Forward

scholarly journals Moving Target Shadow Analysis and Detection for ViSAR Imagery

2021 ◽  
Vol 13 (15) ◽  
pp. 3012
Author(s):  
Zhihua He ◽  
Xing Chen ◽  
Tianzhu Yi ◽  
Feng He ◽  
Zhen Dong ◽  
...  
Keyword(s):  
Detection Method ◽  
Simulated Data ◽  
Shadow Detection ◽  
Frame Rate ◽  
Moving Target ◽  
Sar Images ◽  
Dynamic Changes ◽  
Moderate Resolution ◽  
Formation Method ◽  
Ground Moving Target Detection

The video synthetic aperture radar (ViSAR) is a new application in radar techniques. ViSAR provides high- or moderate-resolution SAR images with a faster frame rate, which permits the detection of the dynamic changes in the interested area. A moving target with moderate velocity can be detected by shadow detection in ViSAR. This paper analyses the frame rate and the shadow feature, discusses the velocity limitation of ViSAR moving target shadow detection and quantitatively gives the expression of velocity limitation. Furthermore, a fast factorized back projection (FFBP) based SAR video formation method and a shadow-based ground moving target detection method are proposed to generate SAR videos and detect the moving target shadow. The experimental results with simulated data prove the validity and feasibility of the proposed quantitative analysis and the proposed methods.

Shadow Detection in SAR Images: An OTSU- and CFAR-Based Method

2020 ◽  
Author(s):  
Hai-xiang Li ◽  
Xue-lian Yu ◽  
Xin-dong Sun ◽  
Jin-chuan Tian ◽  
Xue-gang Wang
Keyword(s):  
Shadow Detection ◽  
Sar Images

A Feed-Forward Time Amplifier Using a Phase Detector and Variable Delay Lines

2013 ◽  
Vol E96.C (6) ◽  
pp. 920-922 ◽  
Author(s):  
Kiichi NIITSU ◽  
Naohiro HARIGAI ◽  
Takahiro J. YAMAGUCHI ◽  
Haruo KOBAYASHI
Keyword(s):  
Phase Detector ◽  
Variable Delay ◽  
Delay Lines ◽  
Feed Forward ◽  
Time Amplifier
Sign in / Sign up

Export Citation Format

Share Document