ISSN 2394-5125
 

Research Article 


A CHANGE DETECTION APPROACH FOR SAR IMAGES USING MODIFIED LOG RATIO AND MEDIAN FILTERING

Dinesh Kumar, Abhishek Sharma, Vinay Bhatia, Pradeep Gaur, Priyanka Sood, Tarun Singhal, Ankur Singhal, Tanya Garg.

Abstract
Change detection in multitemporal images is an area of major concern because there are many
applications that use change detection. For example, change detection approaches are being used in land use
change, vegetation detection, remote sensing and many medical applications. This paper proposes a change
detection method which combines modified log ratio (MLR) and median filtering (MF). The variance to mean
ratio maintains a balance between details preservation and robustness to noise. The log ratio eliminates speckle
noise up to a large extent. Median filtering reduces salt and pepper noise from the images. So, all the three
approaches have been combined together to produce a difference image. The simulated results show that the
proposed method offers better accuracy and less overall error (OE) as compared to other methods used for
comparison.

Key words: remote sensing, change detection, median filtering, log ratio


 
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How to Cite this Article
Pubmed Style

Dinesh Kumar, Abhishek Sharma, Vinay Bhatia, Pradeep Gaur, Priyanka Sood, Tarun Singhal, Ankur Singhal, Tanya Garg. A CHANGE DETECTION APPROACH FOR SAR IMAGES USING MODIFIED LOG RATIO AND MEDIAN FILTERING. JCR. 2020; 7(19): 816-822. doi:10.31838/jcr.07.19.99


Web Style

Dinesh Kumar, Abhishek Sharma, Vinay Bhatia, Pradeep Gaur, Priyanka Sood, Tarun Singhal, Ankur Singhal, Tanya Garg. A CHANGE DETECTION APPROACH FOR SAR IMAGES USING MODIFIED LOG RATIO AND MEDIAN FILTERING. http://www.jcreview.com/?mno=102902 [Access: July 16, 2020]. doi:10.31838/jcr.07.19.99


AMA (American Medical Association) Style

Dinesh Kumar, Abhishek Sharma, Vinay Bhatia, Pradeep Gaur, Priyanka Sood, Tarun Singhal, Ankur Singhal, Tanya Garg. A CHANGE DETECTION APPROACH FOR SAR IMAGES USING MODIFIED LOG RATIO AND MEDIAN FILTERING. JCR. 2020; 7(19): 816-822. doi:10.31838/jcr.07.19.99



Vancouver/ICMJE Style

Dinesh Kumar, Abhishek Sharma, Vinay Bhatia, Pradeep Gaur, Priyanka Sood, Tarun Singhal, Ankur Singhal, Tanya Garg. A CHANGE DETECTION APPROACH FOR SAR IMAGES USING MODIFIED LOG RATIO AND MEDIAN FILTERING. JCR. (2020), [cited July 16, 2020]; 7(19): 816-822. doi:10.31838/jcr.07.19.99



Harvard Style

Dinesh Kumar, Abhishek Sharma, Vinay Bhatia, Pradeep Gaur, Priyanka Sood, Tarun Singhal, Ankur Singhal, Tanya Garg (2020) A CHANGE DETECTION APPROACH FOR SAR IMAGES USING MODIFIED LOG RATIO AND MEDIAN FILTERING. JCR, 7 (19), 816-822. doi:10.31838/jcr.07.19.99



Turabian Style

Dinesh Kumar, Abhishek Sharma, Vinay Bhatia, Pradeep Gaur, Priyanka Sood, Tarun Singhal, Ankur Singhal, Tanya Garg. 2020. A CHANGE DETECTION APPROACH FOR SAR IMAGES USING MODIFIED LOG RATIO AND MEDIAN FILTERING. Journal of Critical Reviews, 7 (19), 816-822. doi:10.31838/jcr.07.19.99



Chicago Style

Dinesh Kumar, Abhishek Sharma, Vinay Bhatia, Pradeep Gaur, Priyanka Sood, Tarun Singhal, Ankur Singhal, Tanya Garg. "A CHANGE DETECTION APPROACH FOR SAR IMAGES USING MODIFIED LOG RATIO AND MEDIAN FILTERING." Journal of Critical Reviews 7 (2020), 816-822. doi:10.31838/jcr.07.19.99



MLA (The Modern Language Association) Style

Dinesh Kumar, Abhishek Sharma, Vinay Bhatia, Pradeep Gaur, Priyanka Sood, Tarun Singhal, Ankur Singhal, Tanya Garg. "A CHANGE DETECTION APPROACH FOR SAR IMAGES USING MODIFIED LOG RATIO AND MEDIAN FILTERING." Journal of Critical Reviews 7.19 (2020), 816-822. Print. doi:10.31838/jcr.07.19.99



APA (American Psychological Association) Style

Dinesh Kumar, Abhishek Sharma, Vinay Bhatia, Pradeep Gaur, Priyanka Sood, Tarun Singhal, Ankur Singhal, Tanya Garg (2020) A CHANGE DETECTION APPROACH FOR SAR IMAGES USING MODIFIED LOG RATIO AND MEDIAN FILTERING. Journal of Critical Reviews, 7 (19), 816-822. doi:10.31838/jcr.07.19.99





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