Phase One Ingest module


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Description


The Phase One Ingest module module reads the contents of Phase One datasets and creates child Phase One ingest jobs, one for each scene. Each child job combines corresponding images using one of the combination methods: Stitch, Stack or Both. It also performs the critical task of creating the math model, which provides CATALYST Enterprise with the ability to further process the imagery.
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Parameters


Name Caption
RGB Scene Folder Input scene folder containing the left & right RGB images; or the stand alone nadir RGB images.
NIR Folder Input scene folder containing the NIR images.
Output Folder Output folder
Overwrite Results Overwrite existing results
Send Email Email notification settings
Combine Method The method used to combine corresponding Phase One images.
Build Pyramids Builds pyramids
Nadir/Left Camera Calibration File File containing camera-calibration parameters
Right Camera Calibration File File containing camera-calibration parameters
NIR Camera Calibration File File containing camera-calibration parameters
Exterior Orientation File File of exterior-orientation parameters
EO File Format Format of the exterior-orientation file
EO Map Units Exterior orientation file projection
EO Elevation Reference Exterior orientation vertical datums
EO Angular Unit Exterior orientation file angular unit
Rotate Kappa Angle Kappa-value rotation angle
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Parameter descriptions

RGB Scene Folder

The name of the folder containing the RGB images of the Phase One scenes to ingest.

Note: This folder must contain all of the nadir RGB images, or all of the left & right RGB images. Do not mix nadir RGB images with the left & right RGB images.

Alternatively, you can specify an MFILE as input. An MFILE is a text file with an .mfile file name extension. For more information on this type of file, see About the MFILE format.

If performing the combination method:

Note: This folder must contain only RGB images. Do not mix any NIR images in with the RGB images.

This parameter is mandatory.

NIR Folder

The name of the folder containing NIR images of the Phase One scenes to ingest.

Alternatively, you can specify an MFILE as input. An MFILE is a text file with an .mfile file name extension. For more information on this type of file, see About the MFILE format.

If performing the combination method:

Note: This folder must contain only NIR images. Do not mix any RGB images in with the NIR images.

This parameter is required when performing the Stack.

Output Folder

The path and name of the folder to which to write the output files in PCIDSK format.

The Phase One Ingest module creates PCIDSK files for each Phase One dataset (pair or triplet) imported from the input folders.

Note: When the output folder is on another computer on your network, the output image is created in a local temporary folder, and then copied to the specified output folder. The local temporary copy is then deleted.

This parameter is mandatory.

Overwrite Results

Select this check box to overwrite the existing output files, if any exist. If this check box is left clear, and an output file exists in the relevant folder, the status of the job displays a message informing you of the existence and name of the output file. The message is also written to the event log of the job.

Send Email

If necessary, you can set up CATALYST Enterprise to send an email notification on job start and job completion.

With this check box selected, an email message is sent to each address specified in the Email Addresses box after the job starts and on completion.

You can specify one or more addresses, and each must be separated by a comma or a semi-colon. The email address of the user currently logged in displays by default.

Combine Method

Phase One Ingest module supports the following combination methods:

Build Pyramids

This check box controls whether to build image pyramids (raster overviews) for the ingested scenes.

Building pyramids improves performance in some subsequent processing steps. They can use the pyramids instead of reading all the pixels. However, building pyramids can cause the ingest job to take longer to complete. If immediately after ingestion you intend only to create orthorectified images, you need not build pyramids.

When to turn on pyramids:

For more information on pyramids, see the Pyramid module.

Nadir/Left Camera Calibration File

The path and name of a file containing camera-calibration parameters for the nadir or left RGB input images, depending on the combination method.

If performing the combination method:

Phase One Ingest module only supports camera calibration files in the Australis format, as shipped with Phase One data.

Right Camera Calibration File

The name of a file containing camera-calibration parameters for right RGB images.

If performing the combination method:

Phase One Ingest module only supports camera calibration files in the Australis format, as shipped with Phase One data.

NIR Camera Calibration File

The path and name of a file containing camera-calibration parameters for NIR images.

If performing the Stack then this camera calibration file is required.

If performing the combination method:

Phase One Ingest module only supports camera calibration files in the Australis format, as shipped with Phase One data.

Exterior Orientation File

The path and name of the file containing the exterior-orientation (EO) parameters required for each scene.

The EO information must be in a format suitable for reading by PCI technology. Currently, EO files, shipped with Phase One IIQ datasets, are not directly supported by PCI technology. Thus, you must convert one of the Phase One EO files to something PCI technology supports. An easy way to convert is to open the EO file in a spread sheet application and reorder and delete the columns to match what PCI technology requires.

Carefully choose the Phase One EO file to convert. Pick the one that is for the calibrated or the nadir data. Check the contents of the EO file, the file names should end with _cal. If you choose the wrong EO file then the output files will not be correctly located.

It is assumed that the EO information was refined previously with a rigorous aerial triangulation and that the EO information is as accurate as required. Therefore, collection of neither ground control points (GCP) nor tie points (TP) is necessary.

The EO file (eo.txt) should contain, at a minimum, the ID, position (easting/longitude, northing/latitude, height), and orientation (omega, phi, kappa).

EO File Format

The encoding method of the exterior orientation (EO) information.

CATALYST Enterprise supports the following formats for EO:

With the text format, ID represents the PhotoID; x, y, z represent the position (easting, northing, height); omega, phi, and kappa represent the orientation.

EO Map Units

The projection for the EO.

The standard definitions are:

You can also specify the label of a user-defined projection, if the projection exists in the userproj.txt file.

EO Elevation Reference

The flying height of the airphoto camera (vertical data) at the time the image was taken.

Available options are:

If the vertical data of the digital elevation model (DEM) and the flying height of the camera differ, the EGM2008 geoid model is used for the conversions during the orthorectification process.

EO Angular Unit

The angular unit of the EO angles.

Available units are:

Rotate Kappa Angle

The angle of rotation to add to the input kappa values, in units specified by the EO Angular Unit parameter.

In some cases, the kappa values in the EO file must be rotated (for example, by 90, -90 or 180 degrees). You apply the correction by specifying the angle of rotation.

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Details

General job details

Preprocessing requirements

Before running this module, the following requirements must be met to ensure the job processes successfully and produces accurate results:

  • Format of ingested data

    • Phase One input data must must be in IIQ (.IIQ) format.
    • The Phase One Ingest module module uses a configuration file to determine various output options. If you need a different configuration then please review PhaseOne IIQ.
  • Corresponding files

    Corresponding files, for a Phase One scene, are determined based on their file names.

    Phase One file triplet

    • ND_4ME_0446_0025_000008L.IIQ: left RGB image. Must be in the same folder as the right RGB image.
    • ND_4ME_0446_0025_000008R.IIQ: right RGB image. Must be in the same folder as the left RGB image.
    • NIR_4ME_0446_0025_000008.IIQ: NIR image. Must be in a separate folder than the left & right RGB images.

    Phase One file pair

    • ND_4ME_0446_0025_000008.IIQ: nadir RGB image. Must be in a separate folder than the nadir NIR images.
    • NIR_4ME_0446_0025_00000.IIQ: NIR image. Must be in a separate folder than the nadir RGB images.

    Phase One file names are broken into 4 parts, the prefix, the scene ID, the suffix, and the extension. The scene Id starts at the first underscore '_' and continues until the period '.' or the 'L' or 'R' before the period. Those files with the same scene ID constitute the corresponding files in a scene. In the example file names above the scene Id is: 4ME_0446_0025_00000

Module details

The Phase One Ingest module imports Phase One IIQ data, by performing a combination method, then writing the result to an output PIX file. Any scene without an exterior orientation will cause an error after the combination is performed.

When performing the Stack or Both combination method, the Phase One Ingest module first scans the NIR Folder for all NIR images. It then scans the Scene Folder for corresponding RGB images. Once all files for a scene have been found, it spawns a child job for the set of corresponding scene files.

When performing the Stitch combination method, the Phase One Ingest module scans the Scene Folder for corresponding left & right RGB images.

You must run this module prior to running any other CATALYST Enterprise module, such as Orthorectification Airphoto module.

Job results

For each scene found in the Scene Folder and NIR Folder, the Phase One Ingest module creates a PCIDSK file in the output folder using a file name generated automatically. The output files follow a naming convention based on the prefix of the left or nadir RGB image and scene ID: {prefix}{scene Id}_cal.pix. Using the example files from above, the output file name is: ND_4ME_0446_0025_000008_cal.pix

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