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349 results about "Thematic map" patented technology

A thematic map is a type of map specifically designed to show a particular theme connected with a specific geographic area.

Three-dimensional digital earth-space data organizing and rendering method based on quad-tree index

The invention provides a three-dimensional digital earth-space data organizing and rendering method based on a quad-tree index, which belongs to the technical fields of cartography, geography information systems and virtual reality. The method comprises the following steps of: unifying common spatial data formats under multi-scale and multi-projection conversion, multispectral, multi-temporal and high-resolution remote sensing satellite images and aerial images as well as digital thematic maps with different scales into same coordinate system, carrying out operation on the attribute of each element and the parameter regulation of quad-tree tiles, outputting in the form of the quad-tree tiles, carrying out quad-tree cutting on three-dimensional landscape map data, leading spatial data into a relevant database, and carrying out unified management. By using the method, common vector data, raster data, altitude data and three-dimensional map data are organically integrated and issued into a three-dimensional digital earth prototype, thereby shortening the time of data preprocessing, improving the execution efficiency and providing a new integration method for three-dimensional digital earth fundamental geographic data dissemination.
Owner:WUHAN IMMERSION ENVIRONMENT

River basin water environment integrated perception and application method based on Internet of Things and 3S technology

ActiveCN105868533ASolve intelligent processingSolve problems such as intelligent processingDetails involving processing stepsGeographical information databasesGeneral Packet Radio ServiceEcological environment
The present invention discloses a river basin water environment integrated perception and application method based on the Internet of Things and a 3S technology. The method comprises three parts: remote sensing monitoring, Internet-of-Things monitoring and GIS analysis. The remote sensing monitoring is used for extracting, by using a remote sensing technology, an ecological environment factor thematic map coupled to a water body, and rapidly positioning a water environment change target area; the Internet-of-Things monitoring is used for transmitting over an ultra-long distance, by building a wireless sensor network and combining a general packet radio service technology, data monitored by water environment sensors, and storing the data into a database of a server; and the GIS analysis is used for management and analysis of spatial data, and generating a river basin water environment thematic application. According to the method disclosed by the present invention, the water environment condition of the monitored area can be rapidly and accurately determined, the water environment of river basins can be more timely and efficiently perceived in real time, and the level of monitoring and comprehensively treating the water environment of the river basins is improved.
Owner:四川易景智能终端有限公司

Urban disaster thematic map real-time generating method based on network information

The invention provides an urban disaster thematic map real-time generating method based on network information. The method comprises the following steps that S1, the urban disaster information is obtained from networks in real time; S2, the urban disaster information is subjected to automatic place name recognition and is then subjected to spatial orientation; S3, the semantic mapping technology based on space time correlation rules is applied, and the urban disaster information subjected to the spatial orientation is subjected to semantic parsing; S4, the urban disaster information subjected to the semantic parsing is subjected to spatial data mining with graphic correlation, and the urban disaster thematic data with graphic spatial correlation is generated; S5, the urban disaster thematic data are subjected to visual representation, and an urban disaster thematic map is generated. The urban disaster thematic map real-time generating method has the advantages that the urban disaster information can be obtained in real time, the obtained urban disaster information is subjected to intelligent mining, the urban disaster thematic map is quickly generated and dynamically issued, and the quick generation and dynamical issuing level of the urban disaster thematic map is improved, and service is provided for urban management and emergency relief.
Owner:北京建筑工程学院

Template based one-button type thematic map automatic forming method and system

The invention discloses a template based one-button type thematic map automatic forming method and system, belonging to the field of computer mapping and relating to the computer automated mapping and mapping synthesized technique. According to the method, a basic data support module comprises a spatial database, a model library and a thematic map mapping template library; the specific mapping steps comprises the follows: establishing the spatial database, selecting content information of the thematic map, establishing the template library, selecting a thematic data representing way, establishing the template library, configuring display information of mapping elements, generating a thematic map configuration XML (Extensive Markup Language) text and analyzing the thematic map configuration XML text, and visually outputting the thematic map configuration XML text. According to the technical scheme provided by the invention, the thematic mapping efficiency and the mapping accuracy can be improved, the mapping automation and intelligence level can be improved, the thematic map making process can be speeded up, and the manpower, the material resources and the financial resources can be economized.
Owner:CHINA UNIV OF GEOSCIENCES (BEIJING)

Heat maps for controlling deformations in optical components

A system (80) for controlling deformations of optical components adapted for use with laser system aperture sharing elements (16) and deformable mirrors. The inventive system (80) includes a control loop (12, 40, 24, 20, 46, 28, 74, 78, 60, 34) for determining a desired temperature pattern. The control loop (12, 40, 24, 46, 28, 74, 78, 60, 34) provides a control signal (45) corresponding to the desired temperature pattern to a heat map applicator (18, 46, 47, 59, 60). The heat map applicator (18, 46, 47, 59, 60) applies the desired temperature pattern to the optical component (16) in response to the control signal and the optical component (16) is selectively deformed in response thereto. In a specific embodiment, the control loop (12, 40, 24, 20, 46, 28, 74, 78, 60, 34) is a closed loop control system that includes an interferometer (74). The interferometer (74) provides a first shape of the optical component (16) to a comparator circuit (20) that compares the first shape to a desired shape corresponding to the desired temperature pattern for determining the control signal. An alternative closed loop control system (12, 40, 24, 20, 46, 28, 74, 78, 60, 34) includes an infrared energy detector (12) that determines a current temperature pattern and generates the control signal in response thereto for converting the current temperature pattern to the desired temperature pattern. The heat map applicator (18, 46, 47, 59, 60) provides an electromagnetic beam (50, 52) that is swept across the optical component (16) to impart the desired temperature pattern on the optical component (16). In another illustrative embodiment, the control loop is an open loop control system that includes a complimentary electromagnetic energy beam that is swept over the optical component to form a heat pattern complimentary to the temperature pattern imparted to the optical component by a high power laser beam such that the total heat deposited on the optical component is uniform.
Owner:RAYTHEON CO

Method for dynamically constructing online thematic map

The invention relates to the technical field of network maps and space information service, in particular to a method for dynamically constructing an online thematic map. The method comprises the following steps of: constructing a sequenced mapping among three sets, namely a statistical index, a visual variable and a map sign by performing online organization and dynamic modeling on heterogeneous distributed statistic index data by a method for drawing a multi-variable map so as to integrate to form a drawing rule set in which a gathering visual variable is used as a core characteristic; and formalizing description language by using extensible markup language (XML) as a network map sign, dynamically constructing a personal thematic map by using a format of a network thematic map service combination, and forming the online thematic map in a logic layer model organization of a map group, a map picture and an illustration, which is detailed step by step. By the method, a map expression acquired by the user comprises dynamic customization expressed in the forms of a map sign, a color and the like, so the humanized requirement of the map user can be fully met; and aiming at users on different levels, the thematic maps meeting the service requirements can be designed, and the effect is remarkable.
Owner:WUHAN UNIV

First view fingertip detection method based on convolutional neural network and heat map

The invention discloses a first view fingertip detection method based on a convolutional neural network and a heat map, which includes the following steps: collecting a gesture image, marking the position of the bounding rectangle of the gesture and the coordinates of the fingertip, and cutting the original gesture image and updating the fingertip position through the bounding rectangle to generate a fingertip heat map; designing a gesture detection convolutional neural network, extracting gesture features, and training the network using the image before cutting and the bounding rectangle to make the network converge; designing a fingertip heat map regression convolutional neural network, extracting fingertip features, and training the network using the image after cutting and the heat mapto make the network converge; and segmenting an input first view video into frames, using the trained gesture detection convolutional neural network to get the bounding rectangle of the gesture, cutting out the gesture part and inputting the gesture part to the fingertip heat map regression convolutional neural network to predict the heat map of the fingertip, and getting the coordinates of the fingertip according to the heat map. The position of the fingertip can be accurately detected in complex backgrounds and under different light conditions.
Owner:SOUTH CHINA UNIV OF TECH

Method for carrying out mangrove forest map making on intermediate resolution remote sensing image by utilizing object-oriented classification method

InactiveCN103000077AHigh precisionOvercome missing pointsMaps/plans/chartsMangroveProblem of time
The invention relates to a method for carrying out mangrove forest map making on intermediate resolution remote sensing image by utilizing object-oriented classification method, which relates to a method for mangrove forest map making and solves the problems of time and labor waste, bad timeliness and serious neglected and wrong classification of mangrove forest in positioning and map making of mangrove forest map making through conventional means at present. The method comprises the following steps: firstly, carrying out ortho-rectification and geometric exact correction on Landsat TM data so as to obtain Landsat TM images after registration; secondly, carrying out multi-layered multi-dimensioned division on the Landsat TM images after registration, wherein each division unit is used as an object; thirdly, extracting textural and topological characteristics, and calculating normalized vegetation index and ground surface humidity index; fourthly, removing a non-vegetated object so as to obtain a vegetated object; fifthly, extracting a mangrove forest object from the vegetated object; sixthly, exporting the mangrove forest object so as to generate a mangrove forest vector; and seventhly, manufacturing a mangrove forest thematic map. The method disclosed by the invention is used for mangrove forest map making.
Owner:NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S

Meteorological service performance evaluation method based on geographical information system (GIS)

The invention discloses a meteorological service performance evaluation method based on a geographical information system (GIS), which is used for carrying out meteorological service performance analysis and evaluation by comprehensively utilizing a neural network method, an analytic hierarchy process, a structural equation method, a gray system method and a statistical analysis technique through using corresponding social statistics and survey data. The method is used for carrying out uniform control and management on hydrologic information, humanity information and meteorological information in a researched region by using a cartographic database and remote sensing data as basis geospatial data through using population data, casualty loss data and geographical hydrologic thematic data based on a GIS technology and a database technology by adopting a design mode of centralized management and maintenance. The invention realizes graphic and feature integrated maintenance management, comprehensive query, space analysis, thematic map, simulation analysis and meteorological service evaluation functions, improves the informatization level and the aid decision making capability of the meteorological service evaluation, and provides aid decision basis for the geographical hydrologic management and the meteorological service performance evaluation.
Owner:NANJING UNIV OF INFORMATION SCI & TECH

Polarized SAR (Synthetic Aperture Radar) image semi-supervised classification method capable of considering characteristic optimization

The invention discloses a polarized SAR (Synthetic Aperture Radar) image semi-supervised classification method capable of considering characteristic optimization. The method comprises the following steps: firstly, adopting a refined polarized LEE filtering method to carry out filtering, extracting polarization characteristics, carrying out combination to obtain an original characteristic set, and carrying out normalization processing; selecting an initial training sample set and a no-label set, and carrying out characteristic selection and classifier parameter optimization through a hybrid coding genetic algorithm under the initial training sample set; reconstructing the training sample set and a no-label sample set; training the classifier, and selecting a candidate set from the no-label sample set; utilizing a trained SVM (Support Vector Machine) classifier to label the candidate set, and selecting and expanding sample points with a high confidence coefficient into the training sample set; repeating the training of the classifier until learning is finished; and classifying the whole image by a finally trained SVM to obtain a classification thematic map. By use of the classification method, on one hand, effective characteristics can be adaptively extracted to improve a semi-supervised classification effect; and on the other hand, the efficiency of self-training learning can be improved, and error accumulation can be effectively avoided.
Owner:HOHAI UNIV

Spatial gravity model based fuzzy c-means remote sensing image automatic classification method

ActiveCN104123561APreserve edge detail informationNo learning experience requiredImage analysisCharacter and pattern recognitionMassive gravityAutomatic segmentation
Disclosed is a spatial gravity model based fuzzy c-means remote sensing image automatic classification method which is suitable for automatic segmentation and classification of remote sensing images, medical images and other image. The spatial gravity model based fuzzy c-means remote sensing image automatic classification method comprises the steps of determining the number of pixels of a remote sensing digital image and performing clustering on the image through a standard FCM (Fuzzy C-Means) model to obtain an initial fuzzy membership matrix and clustering center; solving the spatial gravity and spatial constraint penalty factors between every pixel and other pixels in neighborhood windows of the pixel in turn to obtain a fuzzy factor as the formula finally; adding the fuzzy factor as the formula to the standard FCM model to obtain a new clustering objective function; solving the fuzzy matrix as the formula and the clustering center as the formula in a circulating mode until the clustering center does not continue to be changed any longer or the operation reaches the maximum number of iterations; performing class marking on every pixel point of the remote sensing image through the maximum membership matrix criterion according to the finally solved fuzzy membership matrix as the formula to determine the class of every pixel to form a remote sensing image classification thematic map so as to implement the automatic classification of remote sensing digital images. The spatial gravity model based fuzzy c-means remote sensing image automatic classification method is simple, high in automation degree, small affected by image noise and high in image segmentation classification accuracy.
Owner:CHINA UNIV OF MINING & TECH

Method for detecting spissatus and spissatus shadow based on Landsat thematic mapper (TM) images and Landsat enhanced thematic mapper (ETM) images

The invention discloses a method for detecting spissatus and spissatus shadow Landsat thematic mapper (TM) images and Landsat enhanced thematic mapper (ETM) images. The method comprises steps of dividing an input image into 16 sub-atlases and performing wiener filtering denoising and normalization for the 16 sub-atlases; performing rough detection for the spissatus and the shadow in the 16 sub-atlases and selecting reference pairs from a rough detection result; solving a mass center connection inclined angle and a space of a final reference pair in accordance with all reference pairs; matching the spissatus and the shadow in the 16 sub-atlases in accordance with the mass center connection inclined angle and the space of the final reference pair and performing supplementary detection for unmatched spissatus and unmatched shadow; adding a matching result of the spissatus and the shadow and a supplementary detection result and obtaining final detection result sub-images of all sub-atlases; and sequentially splicing final detection result sub-images of all sub-atlases and obtaining a final detection result image. Auxiliary information and manual intervention are not required, the detection precision is high and the method can be used in detection and classification of remote sensing image variation and pre-processing of image segmentation.
Owner:XIDIAN UNIV

Method for generating power system polluted region distribution map by utilizing intelligent rule base engine

The invention discloses a method for generating power system polluted region distribution map by utilizing intelligent rule bank engine. An intelligent rule bank is divided into a pollution source rule bank, a pollution level rule bank, a pollution wet characteristic rule bank and an operating experience rule bank, quantization is carried out on each rule attribute, attribute information of region characteristic and weather characteristic of each rule are assigned, various data is input, an automatic map forming intelligent rule bank engine is built by virtue of GIS buffer area algorithm and GIS modelling technique, a thematic map of each rule bank is generated by applying GIS buffer area algorithm and combining weather data, each thematic map is subject to superposition according to GIS modelling technique, and GIS fusion algorithm is adopted to fuse corresponding map layers, and then each pollution level map layer is spliced, thus finally generating the polluted region distribution map. The method has the advantages that drawing efficiency is high, polluted region information can be updated and shared at any time, operating experience and drawing rule can be quantized and intellectualization degree is high.
Owner:ELECTRIC POWER RES INST STATE GRID JIANGXI ELECTRIC POWER CO +1
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