Menu Process > Processing Options... > 1. Initial Processing > General

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Access: On the Menu bar, click Process > Processing Options..., the Processing Options pop-up appears. Click 1. Initial Processing. By default, only the General tab appears. On the bottom left, select the Advanced box to display all the tabs.

 


1. Initial Processing

2. Point Cloud and Mesh

3. DSM, Orthomosaic and Index
Resources and Notifications

 

General Matching Calibration  

Allows the user to change the processing options and to select what the Quality Report will display. It contains 2 sections:

 

 

Keypoints Image Scale

Allows to define the image size used to extract the keypoints. It is possible to select:

  • Full: It sets full Image Scale for precise results.
  • Rapid: It sets a lower Image Scale for fast results.
  • Custom: Allows the user to select the Image Scale. There are the following options:
    • Image Scale:
      • 1 (Original image size): This is the recommended Image Scale.
      • 2 (Double image size): For small images (e.g. 640x320 pixels), a scale of 2 (double image size) should be used. More features will be extracted and this will have a positive impact on the accuracy of the results.
      • 1/2 (Half image size): For large projects with high overlap, a scale of 1/2 (half image size) can be used to speed up processing. This will, usually, result in a slightly reduced accuracy as less features will be extracted. This scale is also recommended for blurry or low textured images, as it usually results in better outputs than the full scale for such images.
      • 1/4 (Quarter image size): For very large projects with high overlap, a scale of 1/4 (quarter image size) can be used to speed up processing. This will, usually, result in a slightly reduced accuracy as less features will be extracted. This scale is also recommended for very blurry or very low textured images, as it usually results in better outputs than the full scale for such images.
      • 1/8 (Eighth image size): For very large projects with high overlap, a scale of 1/8 (eighth image size) can be used to speed up processing. This will, usually, result in a slightly reduced accuracy as less features will be extracted. 

 

Quality Report

Allows the user to select what the Quality Report will display.

  • Generate Orthomosaic Preview in Quality Report: The Quality Report will display a low resolution DSM and Orthomosaic. To display these elements, the Quality Report generation takes longer. Disabling this option, the Quality Report generation is faster. 
 
Important: The low resolution DSM is generated using only the Automatic Tie Points. The low resolution Orthomosaic is generated based on this DSM. Both outputs are expected to be of low quality and should not be used for further analysis.
 
Note: When processing images that belong to different groups, all images are processed together, generating only one DSM for the whole project, but generating one Orthomosaic per group using the images associated to that group. For more information about the image groups: 202557949

 

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