Video Timestamps

(click the time stamp to jump directly to that point in the video)

• [01:30]How the crumpled, uneven shape of earth makes mapping all the more difficult
• [03:27]What is a datum?
• [04:00]Geiod vs Ellipsoid - understanding the difference
• [07:22]Which datum is used in the United States? Is referencing to a datum necessary for generating accurate mapping and modeling?
• [10:46]How does a GPS GNSS system measure height in relation to the ellipsoid and geiod? How is height measured when geiod/sea level is lower than the ellipsoid?
• [12:09]Important things to consider when marking GCP's on a project
• [13:30]Does the Geiod12B coincide perfectly with EGM96 datum? Can Pix4D work with datum's other than EGM96?
• [15:04]Can you make accurate corrections using the Phantom 4 RTK?
• [15:46]Considerations for importing imagery to Pix4D; can Pix4D match to the correct GCP coordinate system?
• [18:27]How to output date from Pix4D; what are some common projections for flattening out the earth?
• [20:13]Understanding different Output Coordinate Systems - Long Vertical Zones, State Planes, and Web Mercator
• [21:47]Should you use Google Earth to deliver your products?
• [22:50]How to correctly select an output coordinate system in Pix4D
• [24:40]How to make corrections when the geiod height is above the ellipsoid
• [26:03]What is an arbitrary coordinate system?