What does the value of DewarpData in the XMP information of the photo of Phantom 4 RTK mean in the camera information(camera intrinsic)?
I am thinking to use this value to correct the distortion, but what is the calculation formula?


This photo.
https://drive.google.com/file/d/ ... SI/view?usp=sharing

drone-dji: AbsoluteAltitude = "+116.56"
drone-dji: RelativeAltitude = "+69.95"
drone-dji: GpsLatitude = "43.36511377"
drone-dji: GpsLongtitude = "141.81345593"
drone-dji: GimbalRollDegree = "+0.00"
drone-dji: GimbalYawDegree = "-79.00"
drone-dji: GimbalPitchDegree = "-89.90"
drone-dji: FlightRollDegree = "-2.50"
drone-dji: FlightYawDegree = "-78.60"
drone-dji: FlightPitchDegree = "-4.50"
drone-dji: FlightXSpeed = "+0.50"
drone-dji: FlightYSpeed = "-2.90"
drone-dji: FlightZSpeed = "+0.00"
drone-dji: CamReverse = "0"
drone-dji: GimbalReverse = "0"
drone-dji: SelfData = "Undefined"
drone-dji: CalibratedFocalLength = "3666.666504"
drone-dji: CalibratedOpticalCenterX = "2432.000000"
drone-dji: CalibratedOpticalCenterY = "1824.000000"
drone-dji: RtkFlag = "50"
drone-dji: RtkStdLon = "0.01274"
drone-dji: RtkStdLat = "0.01122"
drone-dji: RtkStdHgt = "0.02394"
drone-dji: DewarpData = " 2018-03-13;3659.780000000000,3653.170000000000,-7.710000000000,45.900000000000,-0.269478000000,0.115681000000,-0.000087561900,-0.000306177000,-0.035762800000"
drone-dji: DewarpFlag = "0"


thanks.

It seems like this value.Date and Time, fx, fy, cx, cy, k1, k2, p1, p2, k3

what program did you use to see all of that exif data, some of those fields  I have never seen

Any program that can extract XMP data
for example exiftool(https://www.sno.phy.queensu.ca/~phil/exiftool/)