Automated Weather Graphics    
   
CineSat's core application is to produce weather analysis and forecast data based on real-time satellite imagery. But it also offers powerful and very flexible graphic capabilities to display all results and to automatically generate customized weather graphics.
   
         
     
         
    Although providing the full range of graphical presentation of satellite related weather data, CineSat remains to be a facility for automatic image processing, weather analysis, and nowcasting, rather than an interactive display system.

The
Automatic Product Extraction Facility (APE) comes already pre-configured to produce a standard set of nice weather products from your real-time satellite images - automatically as soon as new data come in. You can easily adapt the APE to your specific needs, or use it to develop your own weather products.
   
         
  Select Your Display Background Image    
   
         
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You can use any 8-bit palette or 24-bit RGB raster image as background to your weather graphics, e.g.

Click on the links in the list above to view example images.

   
         
  Image Projections    
   

CineSat supports 63 projections onto planes (azimuthal), cylinders, and cones. For each projection surface you may choose among three basic projection properties:

  • equi-distant
  • equivalent (equal-area) and
  • conformal (equal-angles, preserves local shape)

Every projection has a set of parameters that can easily be configured to adapt to your image data and applications.

   
         
   
       
       
         
    The following projections are available:    
   
10 azimuthal (plane) projections:
  ORTHO, GNOMONIC, STEREO, NPOL, SPOL, GEOSAT, EDAP, LAZIMUTH, VPERSPECT, HAMMER (pseudo-azimuthal)
14 cylindrical projections:
  EQUIRECT, PCARREE, MERCATOR, MILLER, GALLISO, GALLORTHO, GALLSTEREO, GNOMOCYL, ISOCYL, LAMBCYL, BEHRMANN, TRYSTAN, PETERS, BALTHASART
3 transverse cylindrical projections:
  CASSINI, TISOCYL, TMERCATOR
25 pseudo-cylindrical projections:
  ECKERT3, ECKERT4, ECKERT5, GOODE, IGOODE, KAVRAISKY7, MERCSAN, MOLLWEIDE, PUTNINS1, PUTNINS2, PUTNINS3, PUTNINS3P, PUTNINS4P, PUTNINS5, PUTNINS5P, PUTNINS6, PUTNINS6P,ROBINSON, WAGNER2, WAGNER3, WAGNER4, WAGNER6, WAGNER7, WERENSKIOLD1, WINKEL1
10 conical projections:
  ALBERS, ISLE, LAMBERT, TISSOT, MURDOCH1, MURDOCH2, MURDOCH3, EULER, PCONIC, VITKOVSKY1
Miscellaneous projections:
  VANDGRINTEN
   
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For all projections, you can set zoom and pan parameters to get your desired region of interest.

With every projection you can either apply the standard nearest neighbor resampling method, or a meteorologically tailored bi-cubic spline method. CineSat's bi-cubic spline resampling had been developed for and validated at the European Space Operations Centre for the accurate recification of Meteosat images.

More on CineSat projections ...
   
         
  Add Standard Image Overlays    
    CineSat weather graphics may contain any number of overlays, consisting of static geographical data, dynamic graphics like image title text and annotations (labels and markers), and the computed weather forecast and analysis data.    
         
     
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With CineSat you can use and customize the following standard overlays:

Click on above links to view example images.

   
         
  Add Forecast and Analysis Overlay Data    
         
   
    Relief-filtered infra-red cloud image with prediction of convective cell movement.    
         
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All of CineSat's real-time weather analysis and short-range forecast data can, of course, be drawn as image overlay, like e.g.

Click on above links to view example images.

Overlay colors and symbols can also be chosen to depend on data values, like e.g. cloud temperatures, convective cell properties, etc.

More on CineSat forecast products ...

   
         
  Choose Your Image and Overlay Colors    
  Top For the computation of weather information, CineSat can handle and fully exploit 1 - 16 bit grayscale images including the high-resolution 10/12 - bit channels of MSG. The result products are usually being output as either 8-bit images with a color palette of 256 out of 16 million colors for images and overlays or as 24-bit true color RGB images. With CineSat you can use any number of overlays for your weather displays.

Overlay colors can be specified either per data set (e.g. black coastlines, yellow motion vectors, ...) or per data item, i.e. dependent on data values, like e.g. cloud temperatures, convective cell properties, etc.

Beside all color options you can of course also opt for traditional
gray value graphics.
   
         
  Clouds on Colored Background    
   

With CineSat, you can pick the clouds from a visible or infra-red image and overlay them onto a colored (8/24-bit) background image (e.g. a land/sea mask). In contrast to the standard cloud thresholding method used at most sites, CineSat features the following improvements:

  • better handling of low and warm clouds over land and sea
  • timely consistent flow of clouds (no clouds are suddenly flickering up or disappear in an image sequence as it is the case with typical thresholding methods)
  • use of a single parameter setting for all satellites and all latitudes

Compare the original infra-red image with its colored background graphic.

   
         
  Polar-stereographic projection of the European region;
IR cloud image together with a land/sea background, geographical net and the major European cities drawn as overlay.

Click on the image for a higher resolution display.
Example weather display    
  Top Click here for a GOES-E South America example.    
         
  Compose Images from Geostationary Satellites    
    CineSat computes composite images from all geostationary weather satellites independent from the actual image resolution. The above image had been produced from mixed A and X-format images received by a Meteosat PDUS station. You can specify any of the supported CineSat projection types to define the result image.    
         
  Composite of 5 satellite images in Hammer projection;
clouds have been drawn onto a colored background using a single parameter setting for all satellites and all latitudes.

Click on the image for a higher resolution display.
   
 
The CineSat composite method provides you with a full earth weather view without any visible border between neighboring satellites if they are available for the same point of time (click on image above to see a high resolution display).

The example below is a composite in Mercator projection. The artefacts over Alaska and the South pacific result from the fact that the GOES-W image was from UTC 18:30 whereas the other satellites are from 18:00. With the GMS image, the image lines south of Australia were not available. The result demonstrates that CineSat can also handle missing or inconsistent input data.
   
  Composite of 5 satellite images in Mercator projection.


Click on the image for a higher resolution display.




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  Combine Any Images    
   

CineSat allows you to combine any two (or more) images of equal size and projection. The basic image operations are:

  • linear combination of two images (Img = A * Img1 + B * Img2 + C)
  • absolut linear combination
  • multiplication of two images
  • minimum and maximum of two images
  • combining three gray-value images to a color RGB image

Sample meteorological applications are:

  • comparing timely successive images by subtracting them
  • merging the visible and infra-red image channels with MAX
  • creating cloud-free background images from an image series with the MIN operator
  • averaging two images
  • applying masks with the MIN or MAX operator
  • combining the visible and infra-red image channel into a color image
   
         
  Composite of visible and infra-red image channels produced with the MAX operator.    
  Color composite of visible and infra-red image channels.    
         
  Top The content of the visible image appears in yellow (i.e. in red and green) and infra-red clouds are in blue. White clouds are contained in both channels. This color code gives you information about cloud temperature and cloud thickness in a single image.    
         
  Filter and Enhance Your Images    
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Image filtering may significantly improve the quality of your weather products and of derived forecasts. Filters are used to remove image noise, to enhance certain aspects of the image content, or simply to make the important bits of information better visible for a human viewer. The following image filters are available with CineSat:

  • smoothing filters (mean, Gauß, median, binomial, ...)
  • contour sharpening filters
  • edge filters (Laplace, Sobel, ...)
  • 3D relief filter
  • neatless removal of burnt-in overlays
  • more than 40 pre-defined filters
  • user-definable filters (filter kernels and filter window sizes)

In addition to image filtering, CineSat offers a number of operations to further enhance your images, like

  • linear and non-linear gray value transformations
  • enhancement of brightness and contrast
  • local and global histogram linearization
  • sun-angle correction
  • atmospheric correction
   
         
 
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