.. _SHEExposureReprojectedSegmentationMap:
  
Shear Exposure Reprojected Segmentation Map
-------------------------------------------
  
Data product name
=================
.. DataProductNameStart
   
sheExposureReprojectedSegmentationMap
   
.. DataProductNameEnd
   
Data product custodian
======================
.. DataProductCustodianStart
   
SHE
   
.. DataProductCustodianEnd
   
Data model tag
==============
.. DataModelTagStart
   
8.0
   
.. DataModelTagEnd
   
Name of the Schema file
=======================
.. NameSchemaStart
   
ST_DM_Schema/dictionary/pro/she/euc-test-she.xsd
   
.. NameSchemaEnd
   
Schema documentation tag
========================
.. SchemaDocTagStart
   
:emphasis:`Documentation for data product element sheExposureReprojectedSegmentationMap:`
    
SHE exposure reprojected segmentation map. This map shows the connected pixels of the objects 
detected on the corresponding MER detection mosaic reprojected to a VIS calibrated image from 
several individual MER tiles. The object id numbers in the segmentation 
map should coincide with the id numbers in the MER final catalog. This product is an output 
from the SHE_MER segmentation reprojection processing in the SHE_Pipeline.

:emphasis:`Documentation for data product element Header:`
    
The generic header of the product.
   
.. SchemaDocTagEnd
   
Data product elements
=====================
.. DataProductElementsStart
   
* ObservationId (long int)
* ExposureProductId (string)
* TileList (list of 1-9 elements)
   * Tile 1
      * TileIndex (long int)
      * TileProductId (string)
   * Tile 2
      * TileIndex (long int)
      * TileProductId (string)
   * ...
* ImgSpatialFootprint
* DetectorList (img:detectorList, list of 1-36 elements)
   * Detector 1 (img:singleDetector)
      * DetectorId (string)
      * WCS (cot:wcs)
      * Zeropoint (float)
      * Saturation (float)
   * Detector 2 (img:singleDetector)
      * DetectorId (string)
      * WCS (cot:wcs)
      * Zeropoint (float)
      * Saturation (float)
   * ...
* DataStorage (sheExposureReprojectedSegmentationMapFile)
   * DataContainer (dss:dataContainer)
   
.. DataProductElementsEnd
   
Processing Element(s) creating/using the data product
=====================================================
.. PECreatorStart

SHE

.. PECreatorEnd
   
Processing function using the data product
==========================================
.. PFUsingStart

SHE

.. PFUsingEnd
   
Detailed description of the data product
========================================
.. DetailedDescStart

An XML data product containing a FITS segmentation image - i.e. an image containing integer pixel values where pixels of
a certain value correspond to a single source. This is used for object identification. These maps were created in MER, but in
SHE_MER we reproject several MER tiles to the original VIS image projections for use in various internal SHE processes. 
The object id numbers in the segmentation map should coincide with the id numbers 
in the object catalogs. 

The main elements inside this product are:

* **ObservationId**: Observation ID identifying the Euclid Field
  that the VIS image is from
* **ExposureProductId**: Exposure Product ID identifying the specific data product from VIS this corresponds to
* **TileList**: List of MER tiles that were remapped to the 
VIS image frame, with the IDs of the tiles and the specific ProductIds
* **ImgSpatialFootprint** The spatial footprint of the image either
  in a serie of vertex or a bounding box.
* **DetectorList**: A list of detectors in the image, containing information such as their WCS.
* **DataStorage**: Element that links to a FITS file containing the map signal
  dataset.

.. DetailedDescEnd