Note: This study note is your own understanding, if there are errors in the place, please correct me, common learning progress.This paper studies from CVPR paper "discriminative spatial Pyramid", "discriminative Spatial Saliency for Image classificationandBeyond Bags of features:spatial Pyramid MatchingFor recognizing Natural Scene Categories, thanks to the author of this paper. The space Pyramid method ind
Place GIS data in RDBMS, however, generally RDBMS does not provide the GIS data type (such as the point, line, polygon, And the topological relationship between these feature and projection coordinates ), RDBMS only supports a small amount of data types: int, float, double, blog, long, Char, etc., generally numbers, strings and binary data. In addition, RDBMS does not extract the storage of GIS data types, nor does it provide operations on these basic types (for example, determining the inclusio
meta-data of a space table
Take all objects of the table's Sdo_geometry column as a layer of space. Spatial needs to validate, create indexes, and query all space objects. You need to specify the appropriate metadata for the layer, which contains the following information: dimension, dimension boundary, tolerance, coordinate system. The above information for each layer is populated in the User_sdo_geom_metadata dictionary attempt.
Sql>describe User_s
This article uses the official C # Driver to implement storage in MongoDB, querying spatial data (vectors)storage of spatial dataIn this example, the vector feature space information and the attribute table are read from a vector file (shapefile format) and written to MongoDB, where the ability to read Shapefile files and convert spatial information to JSON is im
With the increasing requirements of GIS application systems in terms of complexity, integration, and concurrency, the amount of space data required by the system is rapidly increasing. At the same time, users' demands for concurrent access to spatial data are becoming increasingly prominent. The traditional file storage and representation of spatial data methods obviously cannot meet these needs. Because of
JTS is Java's API for processing geographic data, which provides the following features:
Implements the OGC spatial data model for the definition of Simple feature SQL query specification
A complete, consistent, and basic implementation of a two-dimensional space algorithm, including two-dollar operations (such as touch and overlap) and spatial analysis methods (such as intersection and buffer)
, now crosstalk is not good, not market downturn, is not enough, why Guo Degang can sell tickets, Why more than 10 years ago old Guo Eat rice also insisted, he later said, is love this line. Similarly, the basis of the image is very complex, comprehensive disciplines, linear algebra, probability theory, calculus, signal and system, digital signal processing, number theory and so a lot of knowledge, if it is true love, slowly, a little bit of learning solid, there will be a useful, although the c
Spatial Query and analysis are at the core of GIS, and most of the daily tasks of GIS engineering projects are related to query. GIS Query types can be divided into three types: simple attribute query, spatial location-related query, and joint query related to spatial location and attribute. In this topic, we will detail how to perform these three queries in Supe
This morning, I completed the task I proposed for myself yesterday. I finally finished reading PDF files online. At the same time, I solved new problems and added the hand-shaped cursor to control translation. The modification of batch video conversion was not done, mainly because I attended an introduction lecture on Oracle Spatial 11g in the afternoon.
Oracle Spatial 11g lecture is a technical engineer
I like Oracle very much. I also like to sum up the lessons learned about Oracle Spatial in my work. Let's talk about this in detail. Oracle Spatial integrates high-performance management technology for Spatial data warehouses on the database server, so that geographic information can be combined with other services and distributed over the INTERNET, all these adv
Characteristics of spatial database
Spatial database, is to store and analyze spatial data, there are some GIS systems using space files to achieve, such as MapInfo, shape file format, but the spatial database has its unique advantages, in fact, the basic database system and file system features are compared:
1, datab
thanks to open source, the use of openlayers+geoserver GIS development is very simple, fully can apply to develop MIS system experience, I summarized here as three steps:1. Data preparation2. Data release3. Data presentationI will follow this idea to introduce, first of all, the data release:First, the data releaseGIS data sources are various, have vector data, have raster data, have text database, have relational database, because I usually use Oracle spati
Reproduced from: http://www.cnblogs.com/lanzi/archive/2010/12/27/1917659.html
In ArcGIS, there are several ways to store data from SDE Storage to Oracle: binary long Raw, ESRI's st_geometry, and Oracle spatial sdo_geometry, and so on.
The pros and cons of these approaches are not the main direction to explore, and we can get help from ArcGIS Server in ArcGIS. The main point here is to learn about storage based on Oracle
Reproduced for individual study reference, please visit the original source: http://www.cnblogs.com/upDOoGIS/archive/2009/05/20/1469871.htmlrelated micro-blog: Oracle Create sdo_geometry tableThere are several ways to store data from SDE storage in ArcGIS to Oracle, including binary long Raw, Esri St_geometry, and sdo_geometry based on Oracle spatial, among others.The pros and cons of each of these approaches are not the main areas of discussion, whic
The same problem can be solved by different algorithms , and the quality of an algorithm will affect the efficiency of the algorithm and even the program . The purpose of the algorithm analysis is to select the suitable algorithm and the improved algorithm.The complexity of the algorithm is divided into time complexity and space complexity . Its function: Time complexity is the length of time to measure the algorithm execution, and spatial complexity
Tags: des style blog http io ar color OS useSELECT x (location), Y (location) from frddata.points;This article will show you how to use the spatial database in mysql5.x and demonstrate its efficient performance (if used correctly).This article is suitable for people who are familiar with SQL and MySQL.Step 1: Create a table that supports spatial queriesFirst of all, how to create a table named points that c
Recently read an article "Spatiograms versus histograms for region-based tracking", in this article's core ideas and algorithmic reasoning to organize.Spatial histogramThe traditional histogram is visualized as the zero-order spatial histogram, and the second space histogram includes the spatial mean value and covariance of each bin of the histogram, which can obtain the richer feature description of the ta
1. If there is a major difference between the GIS industry and it, the essential difference lies in the application of databases. Databases can be said to be the pillar of the entire IT industry. Their advantages include data sharing, reducing redundancy, avoiding inconsistencies, transaction support, integrity, and independence. They also offer a good advantage, industrial standard SQL.
2. Historically, there have been many technical problems in storing sp
ArcGIS Image Registration and spatial registrationArcGIS Image Registration and spatial registrationMap registration can be divided into video registration and spatial registration. The image registration object is a raster graph, such as a TIFF chart. The image after registration can be saved as an ESRI GRID, TIFF, or erdas imagine format.
The original address is as follows: ArcGIS Image Registration and spatial registration-sunliming-Blog ParkHttp://www.cnblogs.com/sunliming/archive/2011/10/14/2212540.html Map registration can be divided into video registration and spatial registration. The image registration object is a raster graph, such as a TIFF chart. The image after registration can be saved as an ESRI GRID, TIFF, or erdas imagine form
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