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Get 1.65 cm Accuracy Results with the ROCK R2A Drone LiDAR & ROCK Cloud 3D Data Processing Software

Updated: Dec 6, 2022


ROCK Robotic's R2A LiDAR with the ROCK Cloud processing software can produce 1.65 cm accuracy! Bold statement, I know. So, let me break down this accuracy test flight and the procedures I used to achieve this stellar accuracy. Don't worry — you can do it too. And of course, all of the data is openly shared for you to review. 👍


ROCK Robotic - Mind Blowing LiDAR Accuracy Results

ROCK Robotic R2A & ROCK Cloud
ROCK Robotic R2A & ROCK Cloud

The ROCK R2A combines the best of LiDAR with photogrammetry. A lightweight solution weighing only 1.2 kg and capturing up-to 720,000 point measurements per second. With a recommended flying height (150 ft. to 400 ft.) you can capture over 2,000 acres in a single days work. Attached to the R2A LiDAR is a co-aligned 24MP Sony camera. The camera is used to both colorize the LiDAR Point Cloud and produce detailed Orthomosaics. The R2A LiDAR and Photogrammetry system is a survey machine. When used together with the ROCK Cloud, a user can easily capture data and get a Survey Grade Topographic Surfaces, Contours, and Accuracy Reports generated in a single day. This isn't the only thing you can get ... use the ROCK Cloud for Break Lines, Stockpile Volumetrics, Planimetric Line Work, or a multitude of deliverables for Power Lines. The ROCK Cloud is packed full of 3D A.I. that combs through your datasets and delivers unparalleled 3D deliverables from your LiDAR data. Use the ROCK Cloud to store, share, analyze, and process 3D Data. Not to mention — Orthomosaic support!


In this article, an accuracy test is conducted with the ROCK R2A and the ROCK Cloud to generate a topographic surface. The flight was conducted over an abandoned airport runway of approximately 48 acres. The airstrip was selected because of its hard and flat surface. Also, the surface is covered with highly reflective lane markings and runway numbering. The reflective lane markings were used to capturing a network of GCPs (Ground Control Points). I went a little overboard… capturing 178 control points on all the paint striping. 😳



ROCK Cloud - Airport - GCPs
ROCK Cloud - Airport - GCPs

Ground Control Points


A network of 178 GCPs is captured using two Emlid Reach RS2 GNSS