CN107632818A

CN107632818A - The Arcgis tool boxes of remote sensing images information batch extracting

Info

Publication number: CN107632818A
Application number: CN201610307813.4A
Authority: CN
Inventors: 韩锋
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-05-12
Filing date: 2016-05-12
Publication date: 2018-01-26
Anticipated expiration: 2036-05-12
Also published as: CN107632818B

Abstract

The present invention can be nested into the tool box of the extraction remote sensing images information in Arcgis based on python language developments.Meanwhile we combine night lights (DMSP/OLS) data instance to illustrate how to be extracted in practice using this tool box.The tool box of the present invention, it includes：Batch duplicating raster data；Batch export attribute list；Batch application dichotomy extracts urban border threshold value.The present invention by means of python language developments the tool box that can be nested into Arcgis, avoid using artificial treatment, efficiency is low and easily malfunctions, it is ensured that the quality of data, reduce the duplication of labour, improve efficiency, and operate facilitate it is feasible.

Description

The Arcgis tool boxes of remote sensing images information batch extracting

Technical field

The present invention relates to remote sensing GIS-Geographic Information System field, in particular to remote sensing image information interpretation.

Background technology

In correlation technique, when the raster data amount of the remote sensing images across the period is bigger, generally pass through the side of batch processing Method solves, but for the unfamiliar researcher of program language, uses not convenient.

The content of the invention

It is contemplated that at least solves one of above-mentioned technical problem in correlation technique to a certain extent.Therefore, this hair Bright to propose a kind of tool box, the tool box batch processing remotely-sensed data and can call in Arcgis, more important is User only needs the correlation function in click tools case to be operated, simple and easy.

The tool box for the batch processing remotely-sensed data implemented according to the present invention, including three tool-class：Batch duplicating grid number According to；Batch export attribute list；Batch application dichotomy extracts the threshold value of urban border.

Brief description of the drawings

The total interface in Fig. 1 tool boxes；

The function interface that Fig. 2 tool boxes are realized；

Fig. 3 BatchCopyRasterData interfaces；

Fig. 4 BatchExportAttributeTable interface；

Fig. 5 BatchUseDichotomy interface；

Fig. 6 Fig. 3 operational effect figure；

Fig. 7 Fig. 4 operational effect figure.

Reference：

The input space (Input Workspace) is a file road in Fig. 3 BatchCopyRasterData interfaces Footpath, wherein data are downloaded from U.S.National Oceanic and Atmospheric Administration NOAA (National Oceanic and under being Atmospheric Administration) subordinate National geophysics data center NGDC (National Geophysical Data Center,

http：//www.ngdc.noaa.gov/dmsp/download.html), export space (Output Workspace it is) to provide the specific path that operation result is deposited；Operational effect is shown in accompanying drawing 6；

Fig. 4 BatchExportAttributeTable interface input space 1 (Input Workspace1) represents input Be replicate grid after night lights raster data；

What the input space 2 (Input Workspace2) represented input is the entitled shp of suffix in administrative area or province text Part；Here by taking the nighttime light data of 95 years and 98 years of Heilungkiang and Xinjiang as an example, to look at the effect of operation, be specifically shown in Accompanying drawing 7；

In Fig. 5 BatchUseDichotomy interface the input space 1 be created 1995 of attribute list and The Xinjiang of 1998 and the luminous lamp data in Heilungkiang；The input space 2 is actual construction land area data, extends entitled .csv Deng text；Export the urban border threshold value in each year of space representation extraction.

Embodiment

Arcgis tool box ArcCatalog are clicked on, a mouse click right button selects newly-built Python tool boxes, and gives this Tool box is named, and be named as remote sensing image information interpretation tool box .pyt here, editor is then clicked on, ready Python code, which is pasted, enters all right, and specific code is as follows.

Realize the algorithm introduction at interface：

The function of completion is introduced into module and retrieves the license of particular extension module, is named to tool box and defines all works Have class list, it is specific as follows：

We look at how to realize each function with reference to the example of luminous lamp data below.

1. batch duplicating raster data (BatchCopyRasterData)

This instrument can be used for by type of pixel from a bit depth zoom to another bit depth scaling pixel depth when, Grid can show identical bit depth, and value zooms to the new bit depth specified.BatchCopyRasterData can be with Image is replicated according to specified position/pixel, improves subsequent treatment speed.

After clicking on BatchCopyRasterData, the interface of appearance is illustrated in fig. 3 shown below.Batch duplicating raster data (BatchCopyRasterData) algorithm is as follows：

Here the position given tacit consent to is 8_BIT_UNSIGNED, can be adjusted according to research needs, such as：

{1_BIT|2_BIT|4_BIT|8_BIT_UNSIGNED|8_BIT_SIGNED| 16_BIT_UNSIGNED|16_ BIT_SIGNED|32_BIT_UNSIGNED|32_BIT_SIGNED| 32_BIT_FLOAT|64_BIT}。

2. batch creates attribute list (BatchExportAttributeTable)

After clicking on BatchExportAttributeTable, there is interface as shown in Figure 4.The Python algorithms of realization are situated between Continue：

3. batch application dichotomy (BatchUseDichotomy)

Here what we applied is the example of luminous lamp data, will be by luminous lamp remote sensing in batches using the thought of dichotomy The statistical number of the offers such as the construction land area and actual Urban Statistical yearbook in each provincial administrative area each year of image data extraction According to compared to pair, the threshold size special instructions for dividing each provincial administrative area border are provided：It is defeated before the example of this function of application Entering the data in space 1 needs the raster data set name for having created attribute list being saved as set form, as initial data is named For：

F121995.v4b_web.stable_lights.avg_vis.GIF, the grid that nineteen ninety-five is cut out by Xinjiang mask The field name for the file that lattice data set is saved as in the 1995F121995xinjiang.GIF. input spaces 2 includes：Name is saved, it is actual Construction land area (square kilometre), time (year), resolution ratio (square metre).

BatchUseDichotomy is clicked on, it is as shown in Figure 5 interface occur.The Python algorithm introductions of realization：

Claims

1. the tool box for the extraction remote sensing images information that can be nested into based on python language developments in Arcgis, its feature It is, including：

Based on the tool box of python language developments, there are three parts：Batch duplicating raster data；Batch export attribute list；In batches Using the threshold value of dichotomy extraction urban border.Each section only need to provide input and output data in the tool box interface of generation Specific path, so that it may complete division urban border threshold value extraction.

2. the extraction remote sensing images according to claim 1 that can be nested into based on python language developments in Arcgis The tool box of information, it is characterised in that：

Batch duplicating raster data batch export attribute list batch application dichotomy extraction urban border threshold value, this three parts Realize, and can be nested into Arcgis by python language, called in Arcgis.Particularly Part III batch should The threshold value of urban border is extracted with dichotomy, in order that program simplification has directly read attribute list (.dbf) text of raster data Part, and bind the time and two, province amount is used as id, to facilitate the calling of program.