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Pre-Acquisition Checklist
Quality Assurance: QA means putting a plan or
process in place to prevent failure. QA is about
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QAQC for Mobile Lidar Projects

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Proper quality assurance and quality control procedures are essential to ensuring that your mobile lidar project delivers all that you and your clients need. These procedures run throughout all phases of the project including project planning, pre-acquisition in the field, during acquisition, post processing while still in the field and feature extraction.

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QAQC for Mobile Lidar Projects

  1. 1. Pre-Acquisition Checklist Quality Assurance: QA means putting a plan or process in place to prevent failure. QA is about refining a proactive process for success. Quality Control: The steps followed to deliver a product that is free of defect. QC steps are reactive to defects that might be found in the process. Check the weather Do a physical check of all equip- ment from the tires to the sensor. Make sure equipment is fully operational, installed and/or ready Check that all paperwork is valid and current Review the route to make sure driver and operator are in sync VALIDATE: >Sensor function – Ensure sensor powers up and all components are functioning >White balance the cameras capture and review video under ambient light conditions, and adjust camera exposure settings as necessary >Ensure data can record to hard drive and ample space is available Run through safety plan VALIDATE BEFORE LEAVING SITE: >Trajectory - Ensure that GPS/INS solution is within tolerance to meet the required specifications >Imagery – Review imagery and ensure it is usable for the intended purpose >Coverage – Ensure lidar (and imagery) completely cover the areas of interest for the project Data Collection QC Measures Post Collection Checklist >Constant communication between driver and sensor operator to ensure consistent collection >Adjust driving as traffic and project collection warrant (do not drive next to a large truck, adjusting location in the lane as needed, etc.) >Stop sensor collection at long stop lights >Monitor weather, lighting & road conditions Back up data after collection is complete Project Planning Checklist Feature Extraction Checklist Do a thorough location scout to understand site conditions and layout Plan the drive for best quality result ID GPS base station locations and confirm their condition and suitability Ensure all registration points are in place along the route prior to collection Create a safety plan Validate point cloud to survey control Review drive lines for relative alignment “Drive” the project to seek any irregularities QA/QC GUIDELINES FOR MOBILE LIDAR PROJECTS EARTH SKY SPACE www.continentalmapping.com

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