The results are really good. Much better then expected. We fly the Phantom at 60m (about 180ft). The GSD is around 1.6cm/pix. Accuracy… X = 2,5cm – Y = 3cm and Z = 1,5cm
*GPS/QZSS L1, GLONASS G1, BeiDou B1, Galileo E1, SBA
** Позволяет определять координаты с точностью 1-2 см
Another great accuracy project with rigorous photogrammetric processing (including stereo feature collection).