Upload Survey

1. Description

This article describes how to use the "UPLOAD SURVEY" button of the Alteia platform.

The "UPLOAD SURVEY" button creates a survey based on a pack of raw images also named image dataset.

Only User, Operator, and Manager roles can create a survey. To learn more: Account and User Roles Management.

As for Site Creation‍, a survey can be created from the home page or from an opened site. The new survey needs to be attached to one of the companies available.

Please note that it is also possible to create a new survey from a simple orthophoto image. For this, please refer to the article: Manual File Upload.

2. Inputs

Required Inputs
Image dataset A set of minimum 5 images

3. Workflow

3.1 Site choice and survey name

Step 1 -  Click on "UPLOAD SURVEY".

Step 2 - Select and confirm the company to attach the survey.

Note: This step is available if there is no company selected before step 1. In case of the company was already selected before step 1 the pop-up is already filled with the company name.

Step 3 - Drag and drop or browse the dataset (5 images minimum for a dataset). And patient until the end of the upload.

Note 1: If the dataset is compressed (.zip file), decompress it before and drag and drop the files.

Note 2: A pop-up is displayed when the dataset doesn't contain 5 images minimum with exploitable metadata


Step 4 -  Link the survey to a "New site" or to an "Existing site". 

Note: At this stage, a site may already be selected if the downloaded dataset is added to an existing survey. Using the geolocation metadata, Alteia selects the corresponding existing site.

Step 5 - Name the survey and click on "NEXT".

Note: The survey's date is manageable (date of the day by default). 

3.2 Image selection

Step 1 -  Select or deselect images to upload on the left panel. The selection area on the map can also be used for the same purpose.

Step 2 - Select the Coordinate Reference Systems (CRS) (mandatory step):

  • If the picture has metadata, the input CRS will be filled automatically. The vertical CRS is not set automatically
  • If not, after adding the geolocation coordinates file (generally in a CSV file), choose the appropriate formatting source and the file CRS

Step 3 - In case there is no geolocation metadata, Click on "+ METADATA" to upload the geolocation CSV file.

Step 4 - Click on "NEXT".

3.3 Photogrammetry.

Step 1 - The switch button "ORDER PHOTOGRAMMETRY" enables you to choose whether the uploaded data has to be processed or not:


In the photogrammetry tab activated you can find the “estimation processing time”.

  • If not deactivate the switch button and click on "UPLOAD".

Step 2 - Click on "CONFIRM" to launch the upload.

IMPORTANT: Don't log off or shut down the computer until the end of the upload to ensure completion.

4. Results

Step 1 - The progression of the upload is visible by clicking on the cloud icon.

The progression of the upload is also visible on the map view.

Step 2 - A notification is sent to inform that the upload is done. The survey is created.

Step 3 - The dataset is fully uploaded when there is no more visible processing logo on the Upload logo (cloud icon).

5. Failure during the upload

If during the uploading process a problem occurred and some images were not uploaded, know that it is possible to start the upload again on missing images.

Step 1 - Click on the retry button on the site dashboard.

The platform will display in red the photos that have not been uploaded.

Step 2 - Click on "RELOAD IMAGES" and drag and drop or select the dataset directory.

Step 3 - The green dots correspond to images already uploaded. The yellow dots correspond to images that need to be re-uploaded (the sorting is done automatically). Click on "UPLOAD" to complete the new attempt.

Step 4 - Click on "CONFIRM" on the pop-up.