Subsection encoding based timing sequence image dynamic service method and device

A technology of split coding and dynamic service, which is applied in the field of split coding time-series image dynamic service method and device, can solve problems such as difficult to realize time-continuous massive image organization and service, and unsatisfactory application requirements, and achieve high-efficiency dynamic Visualize technical problems, solve time discontinuities, and flexibly organize effects

Inactive Publication Date: 2017-09-05
NAT GEOMATICS CENT OF CHINA
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Problems solved by technology

[0003] The traditional mass time-series image visualization method is mainly based on version management, which has a clear time node in time. Images with similar time or a certain period of time are often regarded as a version, that is, a time point, and the originally contin

Method used

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  • Subsection encoding based timing sequence image dynamic service method and device
  • Subsection encoding based timing sequence image dynamic service method and device
  • Subsection encoding based timing sequence image dynamic service method and device

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Embodiment approach

[0037] As an implementation, see image 3 , step S210 may include:

[0038] Step S211, according to tile pyramid rules, construct a multi-level tile directory corresponding to the time-series remote sensing image, each tile directory corresponds to a level information and a row and column information.

[0039] The time-series remote sensing image adopts the tile pyramid rule to build a tile pyramid model. The resolution of the tile pyramid model is getting lower and lower from the top layer to the bottom layer, but the geographical range represented remains the same. The data of each layer is sliced ​​to form tile data. The tile data in the tile pyramid is organized according to the overall rank and column in the same level, and the data details will change between the upper level and the lower level.

[0040] As an implementation, if the time-series remote sensing image is a time-series remote sensing image at a certain point in time, a tile directory is constructed for eac...

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Abstract

An embodiment of the invention provides a subsection encoding based timing sequence image dynamic service method and device. The method comprises the following steps: generating a multi-level timing sequence image tile model corresponding to a timing sequence remote sensing image; receiving request information of a user terminal; calculating row and column information of a layer where a requested timing sequence image tile is located based on layer information and location information; searching a timing sequence image tile corresponding to the layer information, the row and column information and time information, and returning the timing sequence image tile to the user terminal. The method has the advantages that the accurate time information of the image is integrated with tile service, and flexible and dynamic service for the timing sequence image tile is realized on the premise that lightweight and visualization of the image tile are guaranteed; by flexible organization of the image tile based on actual time, the problems of a traditional versioning method that time is not continuous and organization is not flexible are solved, and a new method for lightweight, dynamic and objective visualization of massive timing sequence images in the big data age is provided.

Description

technical field [0001] The present invention relates to the field of geospatial information, in particular to a segmented and coded time-series image dynamic service method and device. Background technique [0002] With the advent of the era of big data in smart cities, earth observation, satellite remote sensing, ecological assessment, and land supervision are gradually developing in the direction of macro, dynamic, and refined. Many industries have great potential for the dynamic visualization of time-continuous remote sensing images. . [0003] The traditional mass time-series image visualization method is mainly based on version management, which has a clear time node in time. Images with similar time or a certain period of time are often regarded as a version, that is, a time point, and the originally continuously acquired images are constructed into a discrete It is difficult to realize time-continuous massive image organization and service, which does not meet the ap...

Claims

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Application Information

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IPC IPC(8): G06F17/30
CPCG06F16/51G06F16/5866
Inventor 高崟王发良何升金
Owner NAT GEOMATICS CENT OF CHINA
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