Processing Ground Control Points with Strayos

Processing Ground Control Points with Strayos

GCP AI - Video Tutorial

Section 1: Uploading Ground Control Points

 

Step 1


Click "Get Started" to begin the process

Step 2


Enter the project information and toggle the "GCP Data" button.

Step 3


Download the template with selected information and then copy your GCP data to the template. Once the data is in the required format, upload the GCP data.

Step 4


If GCP data is correct then click submit.

Step 5


This screen shows the location of the GCP's overlaid onto satellite imagery. If the locations are correct, then click "Next".

Step 6


Click "Next" to continue on with the process.

Step 7


Upload the images and continue to the next screen.

Step 8


Verify the image and GCP locations and click next.

Step 9


Begin the upload process of the images. Once uploaded, the project will show that it is ready for manual tagging, or that markers have been detected from AI. 


 

Section 2: Rectifying Ground Control Points Manually

 

Step 1


 

Navigate to this base screen by clicking on the project that needs to have GCP's rectified. 

Step 2


AI detects the center of the "X" but the user must verify the center is in the correct location.


Drag the cross-hair to the center of the cross in order to rectify the GCP and change the "X" to a check mark. 

Step 3


Once image is rectified, verify the image is being counted as a rectified GCP. Once 5 GCP's are rectified in at least 3 images, submit to start processing.

 

Section 3: Rectifying Ground Control Points with AI

 

Step 1


Enable AI Verification by clicking the toggle button.

Step 2


Click "Next" or "X" after reading and understanding what AI Verification does.

Step 3


AI Verification has been turned on and 3 images per GCP have been used to verify the GCP. Click "Submit" if you believe the AI Verification is correct.

 

Section 4: Additional Tools and Knowledge

 

Tool 1: Clicking Camera Point


Clicking the camera point selects the image at that location.

Tool 2: Manually Add Control Point

Once on an image, add a control point and the GCP it is referencing by following the steps shown above.


Multiple GCP's can be added for the same image.

 

Knowledge 1: AI Confidence


If the AI cannot detect the center of the cross with high confidence, then it will not put a check mark on the image.

Knowledge 2: Can't Submit without 3 images

GCP's can't be submitted if each GCP does not have a minimum of 3 images verifying that GCP.

Knowledge 3: Navigate to Dashboard


Click cancel in order to navigate back to the Dashboard.


    • Related Articles

    • FAQs: Ground Control Point Rectification

      Q. What coordinate system to use for collecting Ground Control Points (GCP)? Ans: It is best to use the respective UTM or Gloabl coordinates while collecting GCP points. Users can also use the respective State plane coordinate system as long as the ...
    • Placing Ground Control Points (GCP) in the site

      How to use ground control point markers Ground Control Points, or GCPs, are marked points on the ground that have a known geographic location. In aerial mapping, a drone can be used to collect imagery of the site. What qualifies as good GCP marker? ...
    • What common points should be remember during drone image uploading?

      Please keep the following points in mind when uploading data: Do not close your laptop or computer screen during image uploading. Avoid pressing the back button until the upload process is complete. If you need to upload new data, open a new browser ...
    • How to Upload Checkpoints to Verify Model Accuracy

      When producing 3D models via photogrammetry, checkpoints can be helpful in verifying the models absolute accuracy. The difference between Checkpoints and Ground Control Points is listed below: - Ground Control Points (GCPs) are points with known ...
    • Floor Control Module

      Introduction The Floor Control module allows users to: measure how closely floors have been dug to design check which blasts / holes were drilled around any areas of concern identify the cause of any floor issues (design issue, drilling issue or ...