Better calibration in Reality Modeling
Introduction
The goal of this tutorial is to specify calibration settings to Reality Modeling, so that you can obtain a better model.
In this tutorial, we will cover how to send calibration settings to Reality Modeling, and how to retrieve calibration reports from the service.
Info
Skill level:
Expert
Duration:
10 minutes
Prerequisites
This tutorial assumes that you already have:
- Completed the Reality Modeling Quick Start tutorial.
- A basic understanding of the calibration/aerotriangulation concept in Reality Modeling. See Reality Modeling Master Help for a description of the calibration settings
1. Specifying calibration settings
If you want to apply specific settings for the calibration, you can add a file in the workspace reality data: the file at_settings.json has to be uploaded to /{jobId}/data/.
Note that no check on the uploaded file is performed until the job is actually submitted, and if the parameters are not fitted to the inputs, the job will failed.
Note that every properties in the following structure are optional.
Strings separated by - mean only one option can be specified. Strings separated by | can be combined using |, eg: "QR Codes|Chili Tags". For parameter "AdjustWithinTolerance %.%", %.% has to be replace by a double.
If you have a preset and you want to apply it, upload it as at_preset.cfg in /{jobId}/data/. No need to specify the name in the the ATSettings file.
AT Settings exchange structure
{ "ATSettingsExchange":{ "PhotogroupEstimationMode": "OnePass"-"MultiPass", "ColorEqualizationMode": "EqualizeBlockwise"-"EqualizeNone", "SplatsMode": "SplatsAtlas"-"SplatsNone", "AdjustmentConstraints": "None"|"UserConstraints"|"ControlPoints"|"PositionMetadata"|"PointClouds"|"Automatic", "RigidRegistration": "None"|"UserConstraints"|"ControlPoints"|"PositionMetadata"|"PointClouds"|"Automatic", "EstimationGroups": "PerPhotogroup"-"PerPhoto", "RotationPolicy": "Compute"-"Keep"-"Adjust"-"AdjustWithinTolerance %.%", "CenterPolicy": "Compute"-"Keep"-"Adjust"-"AdjustWithinTolerance %.%", "FocalPolicy": "Compute"-"Keep"-"Adjust"-"AdjustWithinTolerance %.%", "PrincipalPolicy": "Compute"-"Keep"-"Adjust"-"AdjustWithinTolerance %.%", "RadialPolicy": "Compute"-"Keep"-"Adjust"-"AdjustWithinTolerance %.%", "TangentialPolicy": "Compute"-"Keep"-"Adjust"-"AdjustWithinTolerance %.%", "TiePointsPolicy": "Compute"-"Keep", "FisheyeFocalPolicy": "Compute"-"Keep"-"AdjustFisheyeFocalSymmetric"-"AdjustFisheyeFocalAsymmetric", "FisheyeDistortionPolicy": "Compute"-"Keep"-"AdjustFisheyeDistortion_01xx0"-"AdjustFisheyeDistortion_x1xx0"-"AdjustFisheyeDistortion_x1xxx"-"AdjustWithinTolerance %.%", "AspectRatioPolicy": "Compute"-"Keep"-"Adjust"-"AdjustWithinTolerance %.%", "SkewPolicy": "Compute"-"Keep"-"Adjust"-"AdjustWithinTolerance %.%", "PairSelectionMode": "Default"-"Sequence"-"Loop"-"Exhaustive"-"Similar images only", "PairSelectionMaxDistance": int, "KeyPointsDensity": "Normal"-"High", "ExtractQR": "QR Codes"|"April Tags"|"Chili Tags"|"Disabled", "ComponentConstructionMode": "OnePass"-"MultiPass" } }
2. Accessing calibration results
Once the step AT_CloudExport is executed, you can access calibration results (including reports) through the workspace reality data.
In /{jobId}/outputs/calibration/ you will find:
acquisition_report, a folder containing an HTML page with CSS regarding the acquisition of your imagesquality_report, a folder containing HTML pages regarding with quality of your calibrationblock.xmlzandblock - TiePoints.xmlz, the corresponding CCOrientations of this calibration
Continue learning
Congratulations for completing the Reality Modeling calibration tutorial! You should now be able to specify calibration settings and retrieve reports once a calibration is completed.
To go further and use Reality Modeling to its maximum potential, you can check the following tutorials.