Change Detection Using Synthetic Aperture Radar Videos

07/28/2020
by   Hasara Maithree, et al.
0

Many researches have been carried out for change detection using temporal SAR images. In this paper an algorithm for change detection using SAR videos has been proposed. There are various challenges related to SAR videos such as high level of speckle noise, rotation of SAR image frames of the video around a particular axis due to the circular movement of airborne vehicle, non-uniform back scattering of SAR pulses. Hence conventional change detection algorithms used for optical videos and SAR temporal images cannot be directly utilized for SAR videos. We propose an algorithm which is a combination of optical flow calculation using Lucas Kanade (LK) method and blob detection. The developed method follows a four steps approach: image filtering and enhancement, applying LK method, blob analysis and combining LK method with blob analysis. The performance of the developed approach was tested on SAR videos available on Sandia National Laboratories website and SAR videos generated by a SAR simulator.

READ FULL TEXT

page 5

page 6

page 10

page 11

research
04/22/2023

SSN: Stockwell Scattering Network for SAR Image Change Detection

Recently, synthetic aperture radar (SAR) image change detection has beco...
research
11/03/2009

An Optimal Method For Wake Detection In SAR Images Using Radon Transformation Combined With Wavelet Filters

A new fangled method for ship wake detection in synthetic aperture radar...
research
07/07/2022

Shadow-Background-Noise 3D Spatial Decomposition Using Sparse Low-Rank Gaussian Properties for Video-SAR Moving Target Shadow Enhancement

Moving target shadows among video synthetic aperture radar (Video-SAR) i...
research
11/07/2018

Maximal Entropy Reduction Algorithm for SAR ADC Clock Compression

Reduction of comparison cycles leads to power savings of a successive-ap...
research
04/17/2020

Unsupervised crop anomaly detection at the parcel-level using optical and SAR images: application to wheat and rapeseed crops

This paper proposes a generic approach for crop anomaly detection at the...
research
06/03/2021

Denoising and Optical and SAR Image Classifications Based on Feature Extraction and Sparse Representation

Optical image data have been used by the Remote Sensing workforce to stu...
research
11/28/2018

Guided patch-wise nonlocal SAR despeckling

We propose a new method for SAR image despeckling which leverages inform...

Please sign up or login with your details

Forgot password? Click here to reset