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PHOTOMOD UAS — stand-alone full photogrammetric UAS-oriented software

PHOTOMOD UAS allows the user to process UAS data and acquire all types of value added photogrammetric products: DEM, dDSM, 2D and 3D-vectors, orthomosaics.

The main techniques of UAS data processing in the PHOTOMOD system are rigorous photogrammetric processing of images with accuracy comparable with ground sample distance (GSD), and simplified method with absolute accuracies of about tens of meters.

Functionality, high performance, simplified user-friendly interface and automation of photogrammetric operations are key benefits, allowing the user to consider PHOTOMOD as the optimal solution for UAV/UAS data processing. The system allows the user to improve processing performance due to distributed processing approach, and uses most effectively the computational capabilities available. Block layout creation, cutlines building, tie points search and measurement, as well as DEM building and filtering are available in the system in fully automatic mode.

While there are many advantages of an unmanned survey, the features of the UAV data pose serious problems for photogrammetric processing. The low quality of images, the low accuracy of the on-board GPS / IMU data, the use of uncalibrated consumer cameras and bugs related to the instability of the flight — all this required adding to the PHOTOMOD system special tools to neutralize these disadvantages and to obtain high-quality deliverables.

    The following definitions for UAS projects processing are provided in the program:

  • preliminary preparing of source images*;
  • images interior orientation;
  • relative orientation of images;
  • input and measurement of GCP coordinates;
  • images exterior orientation;
  • vectorization;

    PHOTOMOD UAS

    User Manual

  • stereovectorization;
  • building DEM and dDSM;
  • creating orthomosaic;
  • creating digital map;
  • creating 3d-models
*Only central projection images with size not more than 60 Mpix could be used as source data.

The software has been tested on images collected by Pentax Optio, Canon1000D, Canon EOS 5D Mark II, Canon Digital IXUS 120 IS, Canon EOS 5D, and Ricoh GR Digital 14102033 cameras. The survey was accomplished using Ptero, Zala, CropCam, and Gatewing unmanned aircraft systems.

The highly professional and operative technical support services of the Racurs company — the PHOTOMOD software developer — supports customers during all workflow stages, providing consultation, training, and the execution of test projects.

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Last modified: 17.05.2017© Racurs, 2004-2017