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

C# | Visual Basic | Visual C++ |
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 )
Public Sub GetIntrinsicMatrixValues ( _ imgWidth As Integer, _ imgHeight As Integer, _ apertureWidth As Double, _ apertureHeight As Double, _ <OutAttribute> ByRef fovx As Double, _ <OutAttribute> ByRef fovy As Double, _ <OutAttribute> ByRef focalLength As Double, _ <OutAttribute> ByRef principalPoint As MCvPoint2D64f, _ <OutAttribute> ByRef pixelAspectRatio As Double _ )
public: void GetIntrinsicMatrixValues( int imgWidth, int imgHeight, double apertureWidth, double apertureHeight, [OutAttribute] double% fovx, [OutAttribute] double% fovy, [OutAttribute] double% focalLength, [OutAttribute] MCvPoint2D64f% principalPoint, [OutAttribute] double% pixelAspectRatio )

- imgWidth (Int32)
- Image width in pixels
- imgHeight (Int32)
- Image height in pixels
- apertureWidth (Double)
- Aperture width in realworld units (optional input parameter). Set it to 0 if not used
- apertureHeight (Double)
- Aperture width in realworld units (optional input parameter). Set it to 0 if not used
- fovx ( Double %)
- Field of view angle in x direction in degrees
- fovy ( Double %)
- Field of view angle in y direction in degrees
- focalLength ( Double %)
- Focal length in realworld units
- principalPoint ( MCvPoint2D64f %)
- The principal point in realworld units
- pixelAspectRatio ( Double %)
- The pixel aspect ratio ~ fy/f