GeoErnest Response to “Ask Me Something: GNSS Lever Arm Estimation”

Hi, GeoErnest !

Thanks for the public platform you offer here!
I ‘ve got two questions. The first one is about lever arm calibration. Read more of this post

Direct Georeferencing QA/QC Block Procedures for Aerial Camera, Part 2: Block Setup | GeoErnest

Direct Georeferencing QA/QC Block Procedures for Aerial Camera, Part 2: Block Setup | GeoErnest

To ensure that the final horizontal RMS ground accuracy is at the GSD level, a simple “QA/QC block” should be flown during each mission. Read more of this post

Direct Georeferencing QA/QC Block Procedures for Aerial Camera, Part1: Why you Need Them | GeoErnest

Direct Georeferencing | QA/QC Block Procedures for Aerial Camera Mapping, Part1 | GeoErnest

Let’s be frank, there are times when your directly georeferenced airborne camera measurement don’t fit your Ground reference points. Don’t panic and re-fly your mission. Don’t call the support team just yet. Let’s use QAQC block procedures to find what the issue is.  Read more of this post

Direct Georeferencing : Conditions to Achieve Accurate Results

Article2: Video Transcript- Direct Georeferencing : Conditions to Achieve Accurate Results

There are some conditions to proper Direct georeferencing: you simply can’t use any GNSS-Inertial system. It has to fit the application. Let me explain some of these simple conditions:

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Direct Georeferencing using a GNSS/INS:What is it?

Article1: Video Transcript- Direct Georeferencing using a GNSS-Inertial Navigation System (INS): What is it?

Direct georeferencing is when you can assign a geographical location on Earth to a pixel from a camera image or a digital point from a laser WITHOUT any additional measurements referencing the ground.

To make this really simple, you can take a digital picture of a scene, and because you know the position of the image and its pointing direction relative to the ground, for every object you see in the picture, you can measure its location on Earth.

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