--- title: Rock Cloud Strip Alignment description: Your L1 data gets better with the Rock Cloud! --- [Skip to content](https://learn.rockrobotic.com/strip-alignment#main-content) English Show submenu for translations ![ROCK-robotic-community-logo.png\]](https://learn.rockrobotic.com/hs-fs/hubfs/ROCK-robotic-community-logo.png?width=250&height=50&name=ROCK-robotic-community-logo.png) - [ROCK Customer Support](https://www.rockrobotic.com/support/) Open main navigation Close main navigation - [ROCK Customer Support](https://www.rockrobotic.com/support/) - English Show submenu for translations - [www.rockrobotic.com](https://www.rockrobotic.com/) [www.rockrobotic.com](https://www.rockrobotic.com/) Hello. How can we help you? - There are no suggestions because the search field is empty. 1. [ROCK Knowledgebase](https://learn.rockrobotic.com/?hsLang=en) 2. [ROCK Cloud](https://learn.rockrobotic.com/rock-cloud?hsLang=en) 3. [Processing](https://learn.rockrobotic.com/rock-cloud?hsLang=en#processing) June 14, 2024 # Rock Cloud Strip Alignment ## Your L1 data gets better with the Rock Cloud! The Rock Cloud makes your L1 lidar data better than by just using DJI Terra. This is by a process of **Strip Alignment**. Over time the L1's onboard **I**nertial **M**easurement **U**nit (IMU) drifts and causes alignment issues across your dataset. By combining your LiDAR data and the SBET trajectory that DJI Terra generates we are able to mitigate the IMU drift and apply corrections to your LiDAR data! ### **Before Rock Cloud Strip Alignment:** Every flight line or "strip" is misaligned to the previous flight line. In the below picture colored by gps time you can see in the cross section a distinct blue layer and green layer. These two flight lines should not create distinct layers. Additionally, the thickness of the "fuzz" is .376 ft. ![](https://learn.rockrobotic.com/hubfs/image-png-Jul-11-2022-06-43-49-44-PM.png) ### **After Rock Cloud Strip Alignment:** After strip alignment you can no longer see a distinct blue and green layer -- they merge into one. Additionally, the "fuzz" is measured as .241 ft. The Rock Cloud Strip Align reduced the point cloud thickness by **36%**! Reducing the thickness of the point cloud will increases the accuracy of the final deliverables! ![](https://learn.rockrobotic.com/hubfs/image-png-Jul-11-2022-06-20-47-52-PM.png) ### Upload your SBET File After processing with DJI Terra upload your cloud######.las file and the file ending in "zenmuse-l1-mission-sbet.out" to the Rock Cloud "Project Data directory". See [this article](https://learn.rockrobotic.com/uploading-your-dji-l1-data-to-the-rock-cloud?hsLang=en) for tips on exporting your point cloud from DJI Terra. Next, order Rock Surveyor and select "Strip Alignment". You can export one or multiple LAS files out of Terra and use one or multiple multiple SBETs on a single project in Rock Cloud.  Both the las/laz and the sbet file need to come from DJI Terra. If you bring into another software and then export the las/laz before uploading strip alignment may not work. ![Screen Shot 2022-06-03 at 1.42.05 PM](https://learn.rockrobotic.com/hs-fs/hubfs/Screen%20Shot%202022-06-03%20at%201.42.05%20PM.png?width=688&name=Screen%20Shot%202022-06-03%20at%201.42.05%20PM.png) - [ROCK R3 Pro](https://learn.rockrobotic.com/rock-r3-pro?hsLang=en#main-content) - [Setup](https://learn.rockrobotic.com/rock-r3-pro?hsLang=en#setup) - [Data collection](https://learn.rockrobotic.com/rock-r3-pro?hsLang=en#data-collection) - [Updates and Maintenance](https://learn.rockrobotic.com/rock-r3-pro?hsLang=en#updates-and-maintenance) - [Mobile Mount](https://learn.rockrobotic.com/rock-r3-pro?hsLang=en#mobile-mount) - [Photogrammetry](https://learn.rockrobotic.com/rock-r3-pro?hsLang=en#photogrammetry) - [ROCK Desktop](https://learn.rockrobotic.com/rock-desktop?hsLang=en#main-content) - [Desktop Processing](https://learn.rockrobotic.com/rock-desktop?hsLang=en#desktop-processing) - [Using ROCK Desktop](https://learn.rockrobotic.com/rock-desktop?hsLang=en#using-rock-desktop) - [Desktop License](https://learn.rockrobotic.com/rock-desktop?hsLang=en#desktop-license) - [Desktop Support](https://learn.rockrobotic.com/rock-desktop?hsLang=en#desktop-support) - [Releases](https://learn.rockrobotic.com/rock-desktop?hsLang=en#releases) - [ROCK Cloud](https://learn.rockrobotic.com/rock-cloud?hsLang=en#main-content) - [Overview](https://learn.rockrobotic.com/rock-cloud?hsLang=en#overview) - [Project Data](https://learn.rockrobotic.com/rock-cloud?hsLang=en#project-data) - [Managing Projections](https://learn.rockrobotic.com/rock-cloud?hsLang=en#managing-projections) - [ROCK Cloud Tools](https://learn.rockrobotic.com/rock-cloud?hsLang=en#rock-cloud-tools) - [Processing](https://learn.rockrobotic.com/rock-cloud?hsLang=en#processing) - [Deliverables & Exports](https://learn.rockrobotic.com/rock-cloud?hsLang=en#deliverables-exports) - [General](https://learn.rockrobotic.com/rock-cloud?hsLang=en#general) - [ROCK SLAM](https://learn.rockrobotic.com/rock-slam?hsLang=en#main-content) - [SLAM Hardware](https://learn.rockrobotic.com/rock-slam?hsLang=en#slam-hardware) - [SLAM Data Collection](https://learn.rockrobotic.com/rock-slam?hsLang=en#slam-data-collection) - [ROCK Colorized SLAM Dock V2](https://learn.rockrobotic.com/rock-slam?hsLang=en#rock-colorized-slam-dock-v2) - [SLAM Data Alignment](https://learn.rockrobotic.com/rock-slam?hsLang=en#slam-data-alignment) - [ROCK Base Station](https://learn.rockrobotic.com/rock-base-station?hsLang=en#main-content) - [ROCK Base Setup](https://learn.rockrobotic.com/rock-base-station?hsLang=en#rock-base-setup) - [ROCK Network](https://learn.rockrobotic.com/rock-base-station?hsLang=en#rock-network) - [Base Data](https://learn.rockrobotic.com/rock-base-station?hsLang=en#base-data) - [ROCK Deliverables](https://learn.rockrobotic.com/rock-deliverables?hsLang=en#main-content) - [Deliverables](https://learn.rockrobotic.com/rock-deliverables?hsLang=en#deliverables) - [Ordering](https://learn.rockrobotic.com/rock-deliverables?hsLang=en#ordering) - [Processing](https://learn.rockrobotic.com/rock-deliverables?hsLang=en#processing) - [General Knowledge](https://learn.rockrobotic.com/general-knowledge?hsLang=en#main-content) - [ROCK](https://learn.rockrobotic.com/general-knowledge?hsLang=en#rock) - [Drones](https://learn.rockrobotic.com/general-knowledge?hsLang=en#drones) - [GPS / GNSS](https://learn.rockrobotic.com/general-knowledge?hsLang=en#gps-gnss) - [LiDAR](https://learn.rockrobotic.com/general-knowledge?hsLang=en#lidar) - [Surveying](https://learn.rockrobotic.com/general-knowledge?hsLang=en#surveying) - [ROCK R2A & R360](https://learn.rockrobotic.com/rock-r2a-r360?hsLang=en#main-content) - [Hardware](https://learn.rockrobotic.com/rock-r2a-r360?hsLang=en#hardware) - [Data Collection](https://learn.rockrobotic.com/rock-r2a-r360?hsLang=en#data-collection) - [Aerial Data Capture](https://learn.rockrobotic.com/rock-r2a-r360?hsLang=en#aerial-data-capture) - [Creating Orthomosaics](https://learn.rockrobotic.com/rock-r2a-r360?hsLang=en#creating-orthomosaics) - [What's New](https://learn.rockrobotic.com/whats-new?hsLang=en) - [Sales](https://learn.rockrobotic.com/sales?hsLang=en) - [ROCK Ultra](https://learn.rockrobotic.com/rock-ultra?hsLang=en#main-content) - [Setup](https://learn.rockrobotic.com/rock-ultra?hsLang=en#setup) - [Data Collection](https://learn.rockrobotic.com/rock-ultra?hsLang=en#data-collection) - [Settings](https://learn.rockrobotic.com/rock-ultra?hsLang=en#settings) [![Chill listening crop-3](https://learn.rockrobotic.com/hs-fs/hubfs/ROCK-robotic-community-logo-1.png?width=120&height=24&name=ROCK-robotic-community-logo-1.png "Chill listening crop-3")](http://rockrobotic.com) rockrobotic.com Help Center Copyright © 2026, ROCK Robotic Inc.