LiPPK + LiMapper for P4R

Integrated PPK and Mapping Solution for DJI Phantom 4 RTK (P4R)

This integrated solution consists of a LiPPK software (desktop & cloud) for PPK differential correction of photo positions and a LiMapper software for photogrammetric processing to generate geospatial products. The components function seamlessly with each other as an integrated solution, and can also be used independently as complementary tools for your current workflow as they are compatible with output/input files generated by most popular hardware/software on the market.

Automatic camera calibration during photogrammetric processing

Automatic camera calibration during photogrammetric processing. Each camera of P4R is calibrated to get camera-specific distortion parameters. LiMapper software automatically reads in camera distortion parameters and use them in photogrammetric calculation process to improve mapping accuracy.

Big data capability to provide high processing efficiency

LiMapper generates products of DEM, DSM, and orthomosaic imagery from 400 P4R photos in 120 minutes with an Intel (R) Core (TM) i7-6700 K, 32GB RAM, NVIDIA GeForce GTX 1060 3G computer.

Automatic lever-arm correction during PPK

Automatic lever-arm correction during PPK. As camera gimble tilts during the flight, offset between GNSS antenna center and camera center changes. LiPPK software adjusts the offset to output the center position for each photo to achieve high geolocation accuracy.

Survey-grade accuracy results

Without using Ground Control Points (GCPs), the absolute horizontal accuracy of result geospatial products is <5 cm and absolute vertical accuracy is <10 cm .

15-day free trial

LiPPK + LiMapper for P4R

15-day free trial of the LiPPK + LiMapper for P4R


The LiPPK software provides a reliable and rigorous PPK differential correction method for improving positioning accuracy of photos captured by P4R drones. The output from LiPPK processing is a .txt file with position information for each photo, which can be used in LiMapper for photogrammetric mapping or other photogrammetric software. LiPPK is provided as both desktop software and cloud module in LiCloud.