iWitness V3

iWitness V3 incorporates advanced digital photogrammetric techniques in an inexpensive, easy-to-use software system for 3D coordinate measurement from digital imagery recorded with modern digital cameras, both professional and consumer grade. Features include:

  • Affordability, at $US1095 per license
  • Exceptionally intuitive and easy to use, with a minimum of toolbar buttons and pull-down menus and a maximum of rigorous background computational support (a full multi-image 3D measurement may involve no more than mouse clicks and five toolbar buttons)
  • Highly rigorous and robust photogrammetric orientation
  • Photogrammetric orientation processes occur automatically: 3D object point coordinates are updated with every new image point referencing, providing instant measurement results and very robust quality control
  • Efficient and fast ‘stitching’ of adjacent, overlapping photogrammetric networks
  • Quality indicators at all stages of the measurement process along with output of accuracy obtained
  • Automatic recognition of the digital camera or cameras being employed, whether consumer-grade or professional
  • A fully automated process for camera calibration either as a stand-alone operation or as an integral component of the measurement process (self-calibration)
  • Auto-assisted image marking and referencing; single-key centroiding leads to both high-accuracy image marking (to 1/30th pixel) and optimal XYZ coordinate accuracy
  • Flexibility to interactively set and change the XYZ object coordinate system, assign scale and tie-in to any chosen existing reference frame via control points
  • Graphics capability for network analysis
  • Auto-assisted image marking and referencing: single-key centroiding leads to both high-accuracy image marking (to 1/30th pixel) and optimal XYZ coordinate accuracy.
  • Guided Referencing Mode: In the referencing of the third and subsequent images, image point locations are predicted, allowing fast, single-image referencing.
  • A Review Mode to allow the accuracy of image point referencing to be assessed, point-by-point, with interactive refinement of referencing, and instantaneous updating of network orientation and 3D point measurements
  • Export of 3D measurement results in DXF format for CAD analysis
  • Planar facet-based photo-realistic texturing of 3D models
  • Generation of 3D curves and edges from 2D curve/line markings in images
  • The handling of very complex measurement tasks and difficult network geometries, with there being no restrictions on the number of cameras and images employed or the number of measurement points

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