Module imagingbook.calibrate.lib
Package imagingbook.calibration.zhang

Class CameraIntrinsicsEstimator

java.lang.Object
imagingbook.calibration.zhang.CameraIntrinsicsEstimator
public class CameraIntrinsicsEstimator extends Object
This class defines methods for estimating the intrinsic camera parameters from multiple homographies. Alternative versions are provided (only one is actually used though).

  • Constructor Details

  • Method Details

    • getCameraIntrinsicsZhang1

      protected RealMatrix getCameraIntrinsicsZhang1(RealMatrix[] homographies)
      Version 1 (Zhang's original closed form solution). Estimates the the intrinsic camera parameters from multiple homographies.
      Parameters:
      homographies - a set of homography matrices
      Returns:
      the estimated 3 x 3 intrinsic transformation matrix

    • getCameraIntrinsicsZhang2

      protected RealMatrix getCameraIntrinsicsZhang2(RealMatrix[] homographies)
      Version 2 (Zhang's corrected closed form solution). Estimates the the intrinsic camera parameters from multiple homographies.
      Parameters:
      homographies - a set of homography matrices
      Returns:
      the estimated 3 x 3 intrinsic transformation matrix

    • getCameraIntrinsicsZhang3

      protected RealMatrix getCameraIntrinsicsZhang3(RealMatrix[] homographies)
      Version 3 (WB's closed form solution). Estimates the the intrinsic camera parameters from multiple homographies.
      Parameters:
      homographies - a set of homography matrices
      Returns:
      the estimated 3 x 3 intrinsic transformation matrix

    • getCameraIntrinsics

      protected RealMatrix getCameraIntrinsics(RealMatrix[] homographies)
      Final version by WB (this version is used by default). Estimates the intrinsic camera parameters from multiple homographies using a Cholesky decomposition.
      Parameters:
      homographies - a set of homography matrices
      Returns:
      the estimated 3 x 3 intrinsic transformation matrix