Image processing-based method for visualization of air pollution data
A technology of air pollution and image processing, which is applied in image data processing, 2D image generation, image enhancement, etc. It can solve the problems such as insufficient smooth edge transition of curved surface splicing, troublesome surface splicing, and unsatisfactory results.
Inactive Publication Date: 2013-01-30
SHANDONG UNIV
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The simplest method is bilinear interpolation. The bilinear interpolation surface can achieve C0 continuity. During interpolation, each point in the space is divided into several areas by one interpolation area for each adjacent four points, and the surface is continuous in each interpolation area. But it is discontinuous on the boundary, the edge transition of surface splicing is not smooth enough, and the effect after rendering is not ideal
The surface obtained by interpolation based on the Bézier surface is C1 continuous in the entire surface space, so the obtained pollutant concentration changes smoothly in space and has a better effect, but the Bézier surface cannot be locally modified, and the surface splicing is relatively trouble
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[0052] Below in conjunction with accompanying drawing and embodiment for further explanation:
[0053] In the present invention, the network of system monitoring stations is required to cover the urban area of Jinan City, and the scope of the monitoring network mainly includes N atmospheric monitoring stations. The ambient air quality monitoring center is wired or wirelessly connected to the city's air quality monitoring sites through the air quality automatic monitoring network. There are 7 ambient air quality monitoring stations in Jinan City, they are: (1) Municipal Environmental Monitoring Station, (2) Provincial Seed Station Warehouse (Quanfu Bridge East), (3) Jinan Chemical Factory (Jiluo Road), ( 4) Retirement Center for National Defense Section (near Sinotruk Technology Center), (5) No. 2 Machine Tool Factory (near the convoy), (6) Development Zone (in Yajuyuan Community - Qingqi Engine Factory), (7) Agricultural Science Institute (Duandian Nursery). Raw data of at...
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The invention discloses an image processing-based method for visualization of air pollution data. According to the method, original air pollution data, which are obtained by all monitoring points of an air quality monitoring station in Jinan city, are processed; concentration (color) change information of air pollutants in an entire interpolation area is obtained by employing a B spline interpolation method; and then a satellite image is processed according to the data so as to obtain a rendering effect of the air pollutants in a natural environment; besides, an influence of the concentrationchange on scene rendering can be reflected in detail. According to the invention, a display effect on data information of pollutants is good; moreover, the operation is easy.
Description
technical field [0001] The invention relates to an air pollution data visualization method based on image processing. Background technique [0002] Information visualization combines the theory and technology of human-computer interaction, digital image processing, graphics and other disciplines. It is a visual interface for human-information interaction. With the development of information technology, the methods for data visualization are gradually increasing, and one of the more commonly used methods is based on image processing. Using the method of image processing for visualization, the information processing is simple and convenient, but if the data is not processed ideally, the display effect will be relatively poor. [0003] Using the method of surface interpolation, according to the pollutant concentration information of discrete data points obtained from monitoring points, a spatial surface with relatively smooth concentration changes in this rendering area can be...
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IPC IPC(8): G06T11/00G06T5/00
Inventor 张彩明王德敏李伟涛
Owner SHANDONG UNIV