NDLI: Sub-pixel Mapping of Remote Sensing Image Based on MAP model

Content Provider	IEEE Xplore Digital Library
Author	Ke Wu Pingxiang Li Liangpei Zhang
Copyright Year	2007
Description	Author affiliation: Wuhan Univ., Wuhan (Ke Wu; Pingxiang Li; Liangpei Zhang)
Abstract	Mixed pixel is a common problem in Remotely Sensed classification. Even though the composition of these pixels for different classes can be estimated with pixel un-mixing model, the output provides no indication of how such classes are distributed spatially within these pixels. Sub-pixel mapping is a technique designed to obtain the spatial distribution of these classes in these pixels with information contained in mixed pixels. In this paper, the work introduces a sub- pixel mapping algorithm exploiting spatial dependence. The spatial arrangement of the different class fractions in surrounding pixels is used to find the location of the sub-pixels inside the central pixel. The sub-pixel mapping algorithm is intended to be applied to fraction images of a high spatial resolution, a regularized super-resolution image reconstruction method can be proposed to solve the problem called the Maximum A Posteriori (MAP) formulation, which based on the assumption of spatial dependence and the application of the soft classification result. With the upscale factor the proposed algorithm was tested on both artificial text image and real TM image, the result shows that it is a simple and efficient method to solve the sub-pixel mapping problem.
Starting Page	742
Ending Page	746
File Size	274769
Page Count	5
File Format	PDF
ISBN	0769529291
DOI	10.1109/ICIG.2007.65
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-08-22
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image resolution Laboratories Electronic mail Remote sensing Image reconstruction hard classification Graphics mixed pixel Hopfield neural networks subpixel mapping Spatial resolution MAP Pixel Testing
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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