ovl.math.3d_math module

ovl.math.3d_math.focal_length(image_width, field_of_view)

Calculates the focal length in pixels of the camera for a given an image width and field of view

Parameters:

• image_width – width of the image in pixels
• field_of_view –

Returns:

calculates the focal length, a float

ovl.math.3d_math.horizon_angle(point: Union[numpy.ndarray, Tuple[int, int]], field_of_view: float, image_width: int) → float

Returns the angle compared to the center of the image for a given field of view image width and point

Parameters:

• point – the contour or its center
• field_of_view – the horizontal field of view
• image_width – the image width

Returns:

the angle compared to the center of the image , negative left positive right.

ovl.math.3d_math.vertical_angle(point: Union[numpy.ndarray, Tuple[int, int]], field_of_view: float, image_height: int) → float

Returns the angle compared to the center of the image for a given field of view image height and point

Parameters:

• point – the x val or center
• field_of_view – the vertical field of view
• image_height – the image height

Returns:

the angle compared to the center of the image , negative up positive down.