Emgu CV Library Documentation
cvProjectPoints2 Method (object_points, rotation_vector, translation_vector, intrinsic_matrix, distortion_coeffs, image_points, dpdrot, dpdt, dpdf, dpdc, dpddist)
NamespacesEmgu.CVCvInvokecvProjectPoints2(IntPtr, IntPtr, IntPtr, IntPtr, IntPtr, IntPtr, IntPtr, IntPtr, IntPtr, IntPtr, IntPtr)

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Computes projections of 3D points to the image plane given intrinsic and extrinsic camera parameters. Optionally, the function computes jacobians - matrices of partial derivatives of image points as functions of all the input parameters w.r.t. the particular parameters, intrinsic and/or extrinsic. The jacobians are used during the global optimization in cvCalibrateCamera2 and cvFindExtrinsicCameraParams2. The function itself is also used to compute back-projection error for with current intrinsic and extrinsic parameters. Note, that with intrinsic and/or extrinsic parameters set to special values, the function can be used to compute just extrinsic transformation or just intrinsic transformation (i.e. distortion of a sparse set of points).
Declaration Syntax
C#Visual BasicVisual C++
public static void cvProjectPoints2(
	IntPtr object_points,
	IntPtr rotation_vector,
	IntPtr translation_vector,
	IntPtr intrinsic_matrix,
	IntPtr distortion_coeffs,
	IntPtr image_points,
	IntPtr dpdrot,
	IntPtr dpdt,
	IntPtr dpdf,
	IntPtr dpdc,
	IntPtr dpddist
)
Public Shared Sub cvProjectPoints2 ( _
	object_points As IntPtr, _
	rotation_vector As IntPtr, _
	translation_vector As IntPtr, _
	intrinsic_matrix As IntPtr, _
	distortion_coeffs As IntPtr, _
	image_points As IntPtr, _
	dpdrot As IntPtr, _
	dpdt As IntPtr, _
	dpdf As IntPtr, _
	dpdc As IntPtr, _
	dpddist As IntPtr _
)
public:
static void cvProjectPoints2(
	IntPtr object_points, 
	IntPtr rotation_vector, 
	IntPtr translation_vector, 
	IntPtr intrinsic_matrix, 
	IntPtr distortion_coeffs, 
	IntPtr image_points, 
	IntPtr dpdrot, 
	IntPtr dpdt, 
	IntPtr dpdf, 
	IntPtr dpdc, 
	IntPtr dpddist
)
Parameters
object_points (IntPtr)
The array of object points, 3xN or Nx3, where N is the number of points in the view
rotation_vector (IntPtr)
The rotation vector, 1x3 or 3x1
translation_vector (IntPtr)
The translation vector, 1x3 or 3x1
intrinsic_matrix (IntPtr)
The camera matrix (A) [fx 0 cx; 0 fy cy; 0 0 1].
distortion_coeffs (IntPtr)
The vector of distortion coefficients, 4x1 or 1x4 [k1, k2, p1, p2]. If it is NULL, all distortion coefficients are considered 0's
image_points (IntPtr)
The output array of image points, 2xN or Nx2, where N is the total number of points in the view
dpdrot (IntPtr)
Optional Nx3 matrix of derivatives of image points with respect to components of the rotation vector
dpdt (IntPtr)
Optional Nx3 matrix of derivatives of image points w.r.t. components of the translation vector
dpdf (IntPtr)
Optional Nx2 matrix of derivatives of image points w.r.t. fx and fy
dpdc (IntPtr)
Optional Nx2 matrix of derivatives of image points w.r.t. cx and cy
dpddist (IntPtr)
Optional Nx4 matrix of derivatives of image points w.r.t. distortion coefficients

Assembly: Emgu.CV (Module: Emgu.CV) Version: 1.3.0.0 (1.3.0.0)