Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Xiaohe Gu Mingchuan Yang Xiaoying Liu Yaozhong Pan Chuanyang He |
| Copyright Year | 2005 |
| Description | Author affiliation: Key Lab. of Environ. Change & Natural Disaster, Beijing Normal Univ., China (Xiaohe Gu; Mingchuan Yang; Xiaoying Liu; Yaozhong Pan; Chuanyang He) |
| Abstract | Reliable in-situ sample data is essential to run the remotely sensed (RS) model and to check the RS result. Existing in-situ data collection methods are ruler measurement by manual work or tracking the parcel by high-accuracy Global Position System (GPS). The former is time-consuming and lacks spatial information, while the latter is costly and the GPS signal is not stable. On account of this, the paper develops a new approach named line-track to get reliable in-situ sample data. The main idea can be described as follows: first, we locate the sample by high-accuracy GPS; then we lay sample lines at certain intervals both horizontally and vertically and obtain the percentage of certain objective on each sample line. In the end we calculate the percentage of objective in the sample. This idea is similar to the line transect in ecology, which is used to estimate wildlife densities. By computer modeling, this paper sets up an accuracy assessing model of line-track, and analyzes the variation of the accuracy of line-track under different conditions, such as distribution of objective, the actual percentage of objective in a sample, and the distance of two sample lines. The modeling of line-track demonstrates that the total accuracy of covering of certain objective at the middle percentage, that is from 15% to 85%, is about 97% when the distance of two sample lines is less than twelve meters, and it would be about 95% at high or low percentage when the distance is less than twenty meters. Such results suggest that line-track is reliable to obtain accurate in-situ data due to less dependence on time and cost. The development of the line-track will strongly support the collection of in-situ sample in the application of RS technology. |
| File Size | 244954 |
| File Format | |
| ISBN | 0780390504 |
| DOI | 10.1109/IGARSS.2005.1526262 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2005-07-29 |
| Publisher Place | South Korea |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Application software Remote sensing Global Positioning System Biological system modeling Remote monitoring Educational technology Position measurement Environmental factors Wildlife Distributed computing |
| Content Type | Text |
| Resource Type | Article |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| 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 |
|
Loading...
|