Photometrix is the Australian-based division of Geodetic Systems Inc. (GSI) and offers software systems and consulting services in digital close-range photogrammetric measurement.  Whereas GSI specializes in the provision of comprehensive, high-accuracy automated systems for industrial measurement, Photometrix develops photogrammetric software packages designed for use with commercial off-the-shelf cameras, for low- to medium-accuracy measurement. Typical application areas are traffic accident reconstruction, forensic measurement, heritage recording in archaeology, architecture and building, bio-medicine, civil engineering construction and general 3D object reconstruction in industries as diverse as education and animation.


Software systems produced by Photometrix include the internationally acclaimed iWitness and iWitness PRO, Australis and CameraCalibrator. These inexpensive systems incorporate advanced digital photogrammetric techniques and maximum ease of use for 3D coordinate measurement, dense point cloud and digital surface model generation, and the creation of reality meshes and orthoimage mosaics from digital imagery recorded with both professional and consumer-grade digital cameras, from terrestrial and UAV/drone platforms.


General features of iWitness, iWitnessPRO and Australis include:

  • Very simple operation supported by automatic processes; iWitnessPRO and Australis support fully automatic measurement and 3D model generation via both targetless (so-called structure-from-motion) and coded target approaches; iWitness features automated calibration and operator assisted processes
  • Rigorous and highly robust photogrammetric orientation and camera calibration
  • Quality and accuracy indicators at all stages of the measurement process
  • Graphics capability for network analysis
  • Export of 3D measurement results in TXT and DXF formats for CAD analysis, as well as LAS format for dense 3D point clouds and PLY format for reality meshes
  • Best-fit geometry functions
  • Automated 3D surface generation can be seamlessly supplemented with manual feature extraction
  • Predictive, auto-assisted marking and referencing of control points in UAV/drone applications
  • The handling of complex measurement tasks, with no restrictions on the number of images employed or the number of measurement points


The Camera Calibrator automatically calibrates both consumer-grade and professional digital cameras through the use of both targetless and coded target approaches. A full calibration of interior orientation (intrinsic parameters) and lens distortion can be obtained within 5 minutes!


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