Obstruction Mapping Case Study - Baseball Stadium Surveying
Datumate Case Study

Baseball Stadium Surveying

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CountryCalifornia, USA
CompanyHummingbird Systems
Job TypeObstruction Mapping
Project DateJune, 2017
Project Size400,000 ft2 (37,161 m2)
DroneDJI Phantom 4 Pro
Flight PatternVertical
Number of Images250
AccuracyBetter than 2.5 cm (0.08ft)
DatuSurvey savings1 field hour instead of 1 day using conventional methods 5 office hours instead of 1.5 days No need to climb on roof

 

“Datumate’s advanced photogrammetry software, enabled us to get quick and very accurate results, as required by our customer. Its unique capability of working directly on actual digitized images enables easy identification of small and thin objects for faster completion of work.”

Mearon Okonsky, Hummingbird Systems

Project Description

dopller radarAll physical obstructions that are within the azimuth of the Doppler radar field of view were identified using the model.

Doppler radar is being implemented in baseball and softball venues around the world to track the trajectory of pitched and hit balls. The units are positioned behind home plate and can track the pitch and hit speeds, spin rates, angles, and ball positions. The data is used to measure the performance of players, as well as keep statistics on the game. The radar units are also used by sporting goods manufacturers to measure the performance of equipment.

You can learn more about Doppler radar tech device for baseball measures pitching speed here.

Data Acquisition

Phantom 4 Pro drone was used for quick, precise and easy image capturing.

Best results are achieved with DatuFly™ app for drones, using oblique flight pattern at 40m (131ft) altitude and radius.

It takes only 6 minutes to get all the required images to achieve, better than 2cm (0.065 ft) resolution.

Datumate Advantage

Working directly on the actual digitized images, allows DatuSurvey™ photogrammetry solution users to identify and extract every object, even as thin as a cable.  In other photogrammetry solutions, users must work on point cloud instead of digitized images, making it practically impossible to see thin objects such as cables.

The Focus Area

The Project

DatuSurvey™ Enterprise Outputs

The Drone’s imagery was analyzed and processed using DatuSurvey™ Enterprise photogrammetry software to quickly generate a dense point cloud and true Orthophoto images, identify and measure objects, as thin as cables, and draw directly on the images.

4

A point file, including names, codes and coordinates of all new points was generated. Overall, 70 new points were drafted directly on the images.

The measurement accuracy of all the points was better than 2.5 cm (0.08ft) in 3D coordinates.

True Orthophoto

True orthophoto was generated from the vertical flight.

Baseball Stadium Surveying - Orthophoto

Texturized Dense Point Cloud

Texturized Dense Point Cloud

CAD Data

A 3D CAD model in DXF format was created. It included the area topography, concrete structures and additional objects that were generated by drafting directly on the images using DatuSurvey™ Enterprise.

CAD Data

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Doppler radar is being implemented in baseball and softball venues around the world to track the trajectory of pitched and hit balls. All physical obstructions that are within the azimuth of the Doppler radar field of view were identified using the model.

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