Table of Contents

Enum CalibType

Namespace
Emgu.CV.CvEnum
Assembly
Emgu.CV.dll

Various camera calibration flags

[Flags]
public enum CalibType

Fields

Default = 0

The default value

FixAspectRatio = 2

The optimization procedure consider only one of fx and fy as independent variable and keeps the aspect ratio fx/fy the same as it was set initially in intrinsic_matrix. In this case the actual initial values of (fx, fy) are either taken from the matrix (when CV_CALIB_USE_INTRINSIC_GUESS is set) or estimated somehow (in the latter case fx, fy may be set to arbitrary values, only their ratio is used)

FixFocalLength = 16

The focal length is fixed

FixIntrinsic = 256

Only for stereo: Fix intrinsic

FixK1 = 32

The 1st distortion coefficient (k1) is fixed to 0 or to the initial passed value if CV_CALIB_USE_INTRINSIC_GUESS is passed

FixK2 = 64

The 2nd distortion coefficient (k2) is fixed to 0 or to the initial passed value if CV_CALIB_USE_INTRINSIC_GUESS is passed

FixK3 = 128

The 3rd distortion coefficient (k3) is fixed to 0 or to the initial passed value if CV_CALIB_USE_INTRINSIC_GUESS is passed

FixK4 = 2048

The 4th distortion coefficient (k4) is fixed (see above)

FixK5 = 4096

The 5th distortion coefficient (k5) is fixed to 0 or to the initial passed value if CV_CALIB_USE_INTRINSIC_GUESS is passed

FixK6 = 8192

The 6th distortion coefficient (k6) is fixed to 0 or to the initial passed value if CV_CALIB_USE_INTRINSIC_GUESS is passed

FixPrincipalPoint = 4

The principal point is not changed during the global optimization, it stays at the center and at the other location specified (when CV_CALIB_FIX_FOCAL_LENGTH - Both fx and fy are fixed. CV_CALIB_USE_INTRINSIC_GUESS is set as well)

FixS1S2S3S4 = 65536

Fix S1, S2, S3, S4

FixTangentDist = 2097152

Fix Tangent distance

FixTauxTauy = 524288

Fix Taux Tauy

RationalModel = 16384

Rational model

SameFocalLength = 512

Only for stereo: Same focal length

ThinPrismModel = 32768

Thin prism model

TiltedModel = 262144

Tilted model

UseExtrinsicGuess = 4194304

For stereoCalibrate

UseIntrinsicGuess = 1

intrinsic_matrix contains valid initial values of fx, fy, cx, cy that are optimized further. Otherwise, (cx, cy) is initially set to the image center (image_size is used here), and focal distances are computed in some least-squares fashion

UseLU = 131072

For stereo rectification: use LU instead of SVD decomposition for solving. much faster but potentially less precise

UseQR = 1048576

Use QR instead of SVD decomposition for solving. Faster but potentially less precise

ZeroDisparity = 1024

For stereo rectification: Zero disparity

ZeroTangentDist = 8

Tangential distortion coefficients are set to zeros and do not change during the optimization