Converting cameras between precisions (original) (raw)

Next: Computing the fundamental/essential matrix Up: Cameras Previous: Building the camera calibration Contents It is sometimes necessary to convert from a double precision Gan_Camerato a single precision Gan_Camera_f or vice versa. Gandalf provides two versions of these routines:

  Gan_Camera   CameraD; /* double precision camera */
  Gan_Camera_f CameraF; /* single precision camera */

  /* ... build CameraD using e.g. gan_cameraf_build_linear() ... */

  /* convert camera from double precision to single precision */
  gan_cameraf_from_camera_q ( &CameraD, &CameraF ); /* OR */
  CameraF = gan_cameraf_from_camera_s ( &CameraD );

  /* convert camera back from single precision to double precision */
  gan_camera_from_cameraf_q ( &CameraF, &CameraD ); /* OR */
  CameraD = gan_camera_from_cameraf_s ( &CameraF );

2006-03-17