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IntrinsicCameraParametersGetIntrinsicMatrixValues Method
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computes various useful camera (sensor/lens) characteristics using the computed camera calibration matrix, image frame resolution in pixels and the physical aperture size

Namespace:  Emgu.CV
Assembly:  Emgu.CV.World (in Emgu.CV.World.dll) Version: 3.3.0.2824 (3.3.0.2824)
Syntax
public void GetIntrinsicMatrixValues(
	int imgWidth,
	int imgHeight,
	double apertureWidth,
	double apertureHeight,
	out double fovx,
	out double fovy,
	out double focalLength,
	out MCvPoint2D64f principalPoint,
	out double pixelAspectRatio
)

Parameters

imgWidth
Type: SystemInt32
Image width in pixels
imgHeight
Type: SystemInt32
Image height in pixels
apertureWidth
Type: SystemDouble
Aperture width in realworld units (optional input parameter). Set it to 0 if not used
apertureHeight
Type: SystemDouble
Aperture width in realworld units (optional input parameter). Set it to 0 if not used
fovx
Type: SystemDouble
Field of view angle in x direction in degrees
fovy
Type: SystemDouble
Field of view angle in y direction in degrees
focalLength
Type: SystemDouble
Focal length in realworld units
principalPoint
Type: Emgu.CV.StructureMCvPoint2D64f
The principal point in realworld units
pixelAspectRatio
Type: SystemDouble
The pixel aspect ratio ~ fy/f
See Also