PHOTOMOD. Additional utilities Dmitry Kochergin Technical support department Yucatan. Mexico. October 2015 From Imagery to Map: Digital Photogrammetric Technologies 15 th International Scientific and Technical Conference From Imagery to Map: Digital Photogrammetric Technologies
Calculation of Gauss-Kruger projection parameters Calculation of coordinate system transformation parameters (“seven parameters”) Estimation of accuracy ”on the ground” from on-board exterior orientation parameters Calculation of grid step (DTM) for contour lines and orthomosaics of selected accuracy Calculation of intersection angles and overlaps for the aerial survey (basically UAS) Coordinate values recalculation between coordinate systems (PHOTOMOD GeoCalculator) Calculation of the aerial survey productivity Additional utilities
Calculation of Gauss-Kruger projection parameters Lat, Lon X, Y Krasovsky ellipsoid Central meridian longitude False easting False northing Usually Local Coordinate System
Calculation of Gauss-Kruger projection parameters
Calculation of coordinate system transformation parameters (“seven parameters”)
Transformation parameters Scale factor X - offset Y - offset Z - offset Rotation around X-axis Rotation around Y-axis Rotation around Z-axis
Calculation of User-defined coordinate system parameters
Direct Georeferencing (“Adjustment” by on-board EO parameters) Estimation of stereomeasurements accuracy by the accuracy of on-board exterior orientation parameters Exterior orientation parametersDirect photogrammetric resection
Camera parameters Survey parameters Точность бортовых ЭВО Stereomeasurements accuracy Direct Georeferencing
Calculation of grid step (DTM) for contour lines and orthomosaics of selected accuracy
Calculation of intersection angles and overlaps for the aerial survey (basically UAS)
Aerial survey productivity
Additional utilities Thank you for attention !