A project from A to Z
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      1. Pix4D Documentation
      2. PIX4Dmapper
      3. A project from A to Z

      Step 1. Before Starting a Project - PIX4Dmapper

       

      Warning: A dataset of insufficient quality will lead to poor results or may even lead to processing failure. This requires taking a new dataset in the field.

      The dataset (compulsory: images, optional but recommended: images' geolocation and ground control points (GCPs)) has to be obtained before using PIX4Dmapper. A good dataset is required in order to automatically produce results with high quality and accuracy. In order to take a good dataset, follow the steps below:

      1. Designing the Image Acquisition Plan: It is very important to design a good image acquisition plan considering:

        • Type of project (aerial, terrestrial, mixed).
        • Type of terrain/object.
        • Type of camera.
        • Purpose of the project.
        • Image rate that the images are taken.
        • Distance (flight height) at which the images are taken and with which angle to take the images.
        • Path(s) to follow to take the images.
        • etc.

      For aerial projects, this also implies:

        • Selecting corridor path or regular grid and/or circular grid.
        • Deciding whether terrestrial images will be used.
        • If more than one flight is needed to cover the full area: design the area to cover with each flight.

      2. Configuring the Camera Settings: The camera settings used to acquire the images need to be configured. Wrong configuration can result in images with blur, noise, distortions, etc.

      3. Georeferencing the Images (optional but recommended): The images can be georeferenced using a camera with built-in GPS or using external GPS devices.

      4. Getting GCPs on the field or through other sources (optional but recommended): Using GCPs requires planning how many GCPs have to be acquired, as well as where and how they have to be measured.