Camera PnPoint integrates a Perspective-n-Point solver into the camera tracking workbench, allowing users to estimate camera poses by matching 2D projections in a still image with known 3D points. This method enables accurate camera matching with fewer points than the built-in tracking tools.

The tool includes a calibration solver to estimate camera intrinsic parameters such as focal length, principal point, and radial distortion coefficients. After solving, it configures a camera object with the calculated extrinsics, intrinsics, and the source background image, while providing reprojection error metrics for validation.