LensIntrinsics

Lens intrinsics parameters defining the projection and distortion of a camera lens model

Properties

aspectRatio : float

Aspect ratio (X/Y) of lens image. This may be different to the aspect of the resolution if the pixels aren’t square.

centerShift : Vec2

Center shift of the lens. In normalised units, relative to a sensor width of 1

centerShiftMM : Vec2

Center shift of the lens in millimeters.

focalLength : float

Focal length of the lens. In normalised units, relative to a sensor width of 1

focalLengthMM : float

Focal length of the lens in millimeters.

fovH : float (Read-Only)

Horizontal field of view in radians.

fovV : float (Read-Only)

Vertical field of view in radians.

k1 : float

The first radial distortion coefficient, which multiplies r^2. In normalised units, relative to a sensor width of 1

k1k2k3 : Vec

The three radial distortion coefficients.

k2 : float

The second radial distortion coefficient, which multiplies r^4. In normalised units, relative to a sensor width of 1

k3 : float

The third radial distortion coefficient, which multiplies r^6. In normalised units, relative to a sensor width of 1.

paWidthMM : float

Width of the sensor (projection area) in millimeters.

Methods

setFocalLengthFromFovH(self, fovH: float)

Use a horizontal field of view to set the normalised focal length.

Parameters:

fovH: The desired horizontal field of view in radians.

setFocalLengthFromFovV(self, fovV: float, _aspectRatio: float)

Use a vertical field of view to set the normalised focal length.

Aspect ratio required as an input so that this function can be called before aspectRatio is set.