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A two-stage framework for polygon retrieval using Minimum Circular Error Bound [chapter]

Lun Hsing Tung, Irwin King
1997 Lecture Notes in Computer Science  
We have proposed a two-stage framework for polygon retrieval 12, 11] which incorporates both qualitative and quantitative measures of polygons in the rst and second stage respectively.  ...  Base on this technique, we propose a new translation invariant similarity measure for polygons named Minimum Circular Error Bound, which can be used in the second stage of the two-stage framework.  ...  In 12, 11] , we proposed a two-stage framework for polygon retrieval in image databases.  ... 
doi:10.1007/3-540-63507-6_246 fatcat:yn5bk4oczvb4xhl4oge6bd2he4

SparkGIS: Efficient Comparison and Evaluation of Algorithm Results in Tissue Image Analysis Studies [chapter]

Furqan Baig, Mudit Mehrotra, Hoang Vo, Fusheng Wang, Joel Saltz, Tahsin Kurc
2016 Lecture Notes in Computer Science  
We present SparkGIS, a distributed, in-memory spatial data processing framework to query, retrieve, and compare large volumes of analytical image result data for algorithm evaluation.  ...  Algorithm evaluation provides a means to characterize variability across image analysis algorithms, validate algorithms by comparison of multiple results, and facilitate algorithm sensitivity studies.  ...  The data retrieval step is responsible for retrieving these polygons from storage sources. Each image can have hundreds of thousands to millions of polygons from a single analysis run.  ... 
doi:10.1007/978-3-319-41576-5_10 pmid:30198025 pmcid:PMC6126541 fatcat:2kdi3l5bwzgqvevwcf7zzprpea

Spatial Cloud Detection and Retrieval System for Satellite Images

Noureldin, Ayman Nasr, Motaz ElSaban, Hoda Onsi
2012 International Journal of Advanced Computer Science and Applications  
system (SCDRS) that introduce a complete framework for specific semantic retrieval system.  ...  It uses a Query by polygon (QBP) paradigm for the content of interest instead of using the more conventional rectangular query by image approach.  ...  The two stages used multilevel framework hierarchy of candidates selection and candidates refinement processes.  ... 
doi:10.14569/ijacsa.2012.031235 fatcat:uz7vserfpnezrj374kh7uozgme

A MapReduce Algorithm for Polygon Retrieval in Geospatial Analysis

Qiulei Guo, Balaji Palanisamy, Hassan A. Karimi
2015 2015 IEEE 8th International Conference on Cloud Computing  
For several key spatial data analysis and computation problems, polygon retrieval is a fundamental operation which is often computed under realtime constraints.  ...  the polygon retrieval operation over existing distributed algorithms.  ...  For each polygon retrieval, we generated a polygon area for the query randomly.  ... 
doi:10.1109/cloud.2015.123 dblp:conf/IEEEcloud/GuoPK15 fatcat:rxwt2dgjarejbgy3ozobicxng4

Geometric matching for clip-art drawing retrieval

Pedro Sousa, Manuel J. Fonseca
2009 Journal of Visual Communication and Image Representation  
Although there are some solutions for drawing retrieval, almost all of them are designed to retrieve simple and not complex drawings as for instance clip-arts.  ...  In this paper, we present a new algorithm to improve the geometric matching of two drawings, which takes into account the drawing as a whole and each of the shapes in it.  ...  In Section 3 we present an overview of our framework for sketch-based retrieval of drawings.  ... 
doi:10.1016/j.jvcir.2008.11.005 fatcat:civi3cvrzve3vo4arxvmkw7koe

Big Data Environment for Realtime Earthquake Data Acquisition and Visualization

Louis Nashih Uluwan Arif, Ali Ridho Barakbah, Amang Sudarsono, Renovita Edelani
2019 JOIV: International Journal on Informatics Visualization  
Indonesia is a country that has the highest level of earthquake risk in the world.  ...  This is evidenced by the computational time in the preprocessing process on a single-core master node, which requires 55.6 minutes, but a distributed computing process using 15 cores can speeds up with  ...  A. Real-Time Data Acquisition In this stage, researchers build a server used to retrieve data.  ... 
doi:10.30630/joiv.3.4.320 fatcat:pjbtvs4ynfaw7p6prahnmljnyi

Real-time automatic 3D scene generation from natural language voice and text descriptions

Lee M. Seversky, Lijun Yin
2006 Proceedings of the 14th annual ACM international conference on Multimedia - MULTIMEDIA '06  
Only the polygon representations of the objects are required for object placement. In addition, our system is robust.  ...  Scene descriptions are constructed in real-time using a method for depicting spatial relationships between and among different objects.  ...  framework.  ... 
doi:10.1145/1180639.1180660 dblp:conf/mm/SeverskyY06 fatcat:lahukkehhjhvnhuhkwbopx7yoy

DISTRIBUTED ALGORITHMS FOR SPATIAL RETRIEVAL QUERIES IN GEOSPATIAL ANALYSIS

2016 Services Transactions on Cloud Computing  
For several key spatial data analysis and computation problems, polygon retrieval is a fundamental operation which is often computed under real-time constraints.  ...  In this work, we present a MapReduce-based parallel polygon retrieval algorithm which aims at minimizing the IO and CPU loads of the map and reduce tasks during spatial data processing.  ...  For each polygon retrieval, we generated a polygon area for the query randomly.  ... 
doi:10.29268/stcc.2016.4.3.1 fatcat:ehka6kr5ofgdbkpzalpn6en3bu

A Framework for Encoding Spatial Data*

Kenneth J. Dueker
2010 Geographical Analysis  
This paper accomplishes two tasks: 1) the development of a conceptual framework for encoding spatial data for in- corporation into geographic information systems, and 2) the presentation of a notation  ...  98 / Geographical Analysis A Framework for Encoding Spatial Data* Kenneth J.  ... 
doi:10.1111/j.1538-4632.1972.tb00460.x fatcat:iszsurndcrgn5fnnqsngx5spsa

Comparing land surface phenology of major European crops as derived from SAR and multispectral data of Sentinel-1 and -2

Michele Meroni, Raphaël d'Andrimont, Anton Vrieling, Dominique Fasbender, Guido Lemoine, Felix Rembold, Lorenzo Seguini, Astrid Verhegghen
2021 Remote Sensing of Environment  
The correlation is lower for end of season retrievals (EOS, r of 0.62 and 0.34).  ...  However, these data have not been systematically exploited for phenology retrieval so far.  ...  Appendix A. Supplementary data Supplementary data to this article can be found online at https://doi. org/10.1016/j.rse.2020.112232.  ... 
doi:10.1016/j.rse.2020.112232 pmid:33536689 pmcid:PMC7841528 fatcat:g2a6xd4msjblppov6yo6x4teqe

Hull Surface Information Retrieval and Optimization of High Speed Planing Craft

A F Ayob, W B Wan Nik, T Ray, W F Smith
2012 IOP Conference Series: Materials Science and Engineering  
An optimization framework for high speed planing craft is discussed which consist of surface information retrieval module, a suite of state-of-the-art optimization algorithms and standard naval architectural  ...  A summary of the implementation of the proposed hull surface information retrieval and several case studies are presented to demonstrate the capabilities of the framework.  ...  design stage.  ... 
doi:10.1088/1757-899x/36/1/012034 fatcat:x7lnd376brfvzjuvukn3xozmbu

DISTRIBUTED ALGORITHMS FOR SPATIAL RETRIEVAL QUERIES IN GEOSPATIAL ANALYSIS

Qiulei Guo, Balaji Palanisamy, Hassan A. Karimi, Liming Zhang
2016 Services Transactions on Cloud Computing  
For several key spatial data analysis and computation problems, polygon retrieval is a fundamental operation which is often computed under real-time constraints.  ...  In this work, we present a MapReduce-based parallel polygon retrieval algorithm which aims at minimizing the IO and CPU loads of the map and reduce tasks during spatial data processing.  ...  For each polygon retrieval, we generated a polygon area for the query randomly.  ... 
doi:10.29268/stcc.2016.0007 fatcat:cfvabopstrchrbid2ao4cyvoru

Efficient Retrieval of Logos Using Rough Set Reducts [article]

Ushasi Chaudhuri, Partha Bhowmick, Jayanta Mukhopadhyay
2019 arXiv   pre-print
Speed and accuracy are two aspects that one must attend to while developing a system for retrieval of logos.  ...  A logo is split into a number of polygons, and for each polygon, we compute the tight upper and lower approximations based on the principles of a rough set.  ...  Speed and accuracy are two aspects that one must attend to while developing a system for retrieval of logos.  ... 
arXiv:1904.05008v1 fatcat:gwy6u4pjzvcsheerswl45hwbvq

3D-shape-based retrieval within the MPEG-7 framework

Titus Zaharia, Francoise J. Preteux, Edward R. Dougherty, Jaakko T. Astola
2001 Nonlinear Image Processing and Pattern Analysis XII  
Within the framework of the future MPEG-7 standard, tools for intelligent content-based access to 3D information, targeting applications such as search & retrieval and browsing of 3D model databases, have  ...  Hence, standardizing tools for content-based indexing of visual data is a key issue for computer vision related applications.  ...  In section 3, we introduce the mathematical definition of the proposed 3D SSD, within a continuous framework. Section 4 deals with the extraction of the 3D SSD from discrete polygonal meshes.  ... 
doi:10.1117/12.424969 fatcat:dqhltsvg6nexnggmk375rfhu3q

Smart book locator system based on geographic information system at Perpustakaan Tun Abdul Razak 1, UiTM Shah Alam Malaysia

N Ya'acob, S Abdullah, A.L. Yusof, N.F. Naim, M.A. Zainali
2018 Journal of Fundamental and Applied Sciences  
This study proposes a system called Smart Book Locator System (SBLS), which incorporates Geographic Information System (GIS) to assist users in visualising and navigating them to the location of the  ...  the online database, Online Public Access Catalogue (OPAC), eases the burden of users to inquire the availability and l have to go to the library and search through the endless cabinets to locate and retrieve  ...  In this stage, the information of reference materials available in PTAR 1 retrieved in stage 2 is compiled and arranged in a database.  ... 
doi:10.4314/jfas.v9i5s.22 fatcat:c2ijmrebjjfilctu6ddykvb3bi
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