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USGS and ASPRS Seek Input on Aerial Camera and Sensor Calibration Requirements

Posted By John Palatiello, Friday, December 11, 2015

The USGS has asked for input from MAPPS member firms regarding future camera and sensor calibration interests. 

As system and sensor technology moves forward, the ASPRS Primary Data Acquisition Division (PDAD), working with USGS, desires to solicit input from the community to understand, assess, and support metric calibration needs for aerial systems and sensors. 

This is an activity in which MAPPS has been involved since its founding in 1982.

In this case, the concern is the metric calibration of both the film-based and digital camera aerial systems requirements. As analog film cameras continue to be reduce via the number of cameras in use and new digital cameras continue to be developed and operationally placed in service at rapid pace, “What are the current calibration needs in the airborne community?”

There are laboratory calibrations that are performed on both analog and digital camera systems. The laboratory calibration process provides the baseline optical information for a metric camera system. For analog film mapping cameras, most systems are calibrated by utilizing the U.S. Geological Survey (USGS) Optical Science Laboratory (OSL) bank collimator method, and this is limited to the film-based camera.

Many manufactures and data providers have done in situ calibration tests with film cameras and this may result in available methods for film cameras, assuming the camera is in good working order. It is anticipated that the new ASPRS Guidelines for the Aerial Camera In Situ Geometric Calibration of the Aerial Camera System should be considered as an appropriate method for a metric camera calibration procedure for both film-based and digital aerial camera systems. In situ calibration has been tested and used by in various companies, academia and Governments for digital camera calibration. ASPRS and USGS are interested in your in situ calibration test results for analog film cameras, digital cameras, and other aerial sensors.  To provide information to ASPRS/USGS, click here.

With this as background, it is asked that you help answer a list of questions concerning the future of camera system metric calibration and other future potential calibration and data quality needs. Please provide comments where appropriate.

To take the survey, click here.

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