Tie-Point Refinement Aerial module

Description

From a CATALYST Professional OrthoEngine project file, the Tie-Point Refinement Aerial module refines tie points (TP) in aerial imagery. Typically, you run this module after running the Tie-Point Collection and Refinement Aerial module to further refine the results, such as when the results of previous refinements were unacceptable.

Parameters

Name	Caption
Input Project	Input OrthoEngine project file
Output Folder	Output folder
Send Email	Email notification settings
Overwrite Results	Overwrite existing results
Rejection Method	TP rejection method
TP Residual Target	TP residual target
Deactivate Images Below TP Threshold	Whether to deactivate images with less than a certain amount of TPs or not
Minimum Number of TPs	The number of TPs an image must have to be left active
Rejection Action	Remove or deactivate TPs rejected during thinning and refinement

Parameter descriptions

Input Project

The path and file name of the OrthoEngine project file (*.prj) in which you want to refine TPs.

Output Folder

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

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.

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.

Rejection Method

The method used to reject TPs.

Available options are:

Progressive:Residuals greater than 1,000, 500, 100, 20, and 10 pixels are removed iteratively before applying the TP Residual Target
Direct:Residuals greater than the value specified by TP Residual Target are removed immediately

TP Residual Target

The job removes TPs until the TP Residual Target is reached. The method in which TPs are removed is defined by the Rejection Method.

Deactivate Images Below TP Threshold

If selected, deactivates images with less than Minimum Number of TPs as they are likely bad images and can have negative effects on DEM Extraction and Mosaicking.

Minimum Number of TPs

If Deactivate Images Below TP Threshold is selected, specifies the number of TPs an image must have to remain active.

Rejection Action

Select whether to remove or deactivate tie points (TP) rejected during thinning and refinement.

The available options are as follows:

Deactivate: renders rejected points inactive. Inactive points are excluded from the math-model calculation.
Delete: removes rejected points.

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:

Input Project: The OrthoEngine project you specify as input must contain tie points (TP).

Module details

The Tie-Point Refinement Aerial module reads the input project file, and then refines all of the TPs the file contains.

Job results

The Tie-Point Refinement Aerial module produces the following output:

Updated OrthoEngine project file, containing the refined TPs.

You can now open the project in OrthoEngine to perform QA, or proceed to use the next module in the CATALYST Enterprise workflow. Typically, this is to run one or both of the following:

DEM Extraction module
Orthorectification ADS module