dual_quat_conjugateT_dual_quat_conjugateDualQuatConjugateDualQuatConjugatedual_quat_conjugate (Operator)

Name

dual_quat_conjugateT_dual_quat_conjugateDualQuatConjugateDualQuatConjugatedual_quat_conjugate — Conjugate a dual quaternion.

Signature

Description

The operator dual_quat_conjugatedual_quat_conjugateDualQuatConjugateDualQuatConjugatedual_quat_conjugate computes the conjugation DualQuaternionConjugateDualQuaternionConjugateDualQuaternionConjugatedualQuaternionConjugatedual_quaternion_conjugate of the input dual quaternion DualQuaternionDualQuaternionDualQuaterniondualQuaterniondual_quaternion.

For a brief introduction to dual quaternions, the used notation, and the relationship between dual quaternions and screws, see “Solution Guide III-C - 3D Vision”.

The conjugation of a dual quaternion is given by , where and are the conjugations of the quaternions and .

For the conjugation of quaternions see quat_conjugatequat_conjugateQuatConjugateQuatConjugatequat_conjugate.

If DualQuaternionDualQuaternionDualQuaterniondualQuaterniondual_quaternion is a unit dual quaternion and, hence, represents a 3D rigid transformation, its inverse is its conjugate, i.e., . Consequently, DualQuaternionConjugateDualQuaternionConjugateDualQuaternionConjugatedualQuaternionConjugatedual_quaternion_conjugate represents the inverse 3D rigid transformation of DualQuaternionDualQuaternionDualQuaterniondualQuaterniondual_quaternion. Therefore, dual_quat_conjugatedual_quat_conjugateDualQuatConjugateDualQuatConjugatedual_quat_conjugate can be used to invert a 3D rigid transformation analogously to pose_invertpose_invertPoseInvertPoseInvertpose_invert or hom_mat3d_inverthom_mat3d_invertHomMat3dInvertHomMat3dInverthom_mat3d_invert.

Execution Information

• Multithreading type: reentrant (runs in parallel with non-exclusive operators).
• Multithreading scope: global (may be called from any thread).
• Processed without parallelization.

Parameters

Possible Predecessors

dual_quat_composedual_quat_composeDualQuatComposeDualQuatComposedual_quat_compose, pose_to_dual_quatpose_to_dual_quatPoseToDualQuatPoseToDualQuatpose_to_dual_quat, screw_to_dual_quatscrew_to_dual_quatScrewToDualQuatScrewToDualQuatscrew_to_dual_quat

Possible Successors

dual_quat_composedual_quat_composeDualQuatComposeDualQuatComposedual_quat_compose, dual_quat_to_hom_mat3ddual_quat_to_hom_mat3dDualQuatToHomMat3dDualQuatToHomMat3ddual_quat_to_hom_mat3d, dual_quat_to_screwdual_quat_to_screwDualQuatToScrewDualQuatToScrewdual_quat_to_screw, dual_quat_interpolatedual_quat_interpolateDualQuatInterpolateDualQuatInterpolatedual_quat_interpolate, dual_quat_to_posedual_quat_to_poseDualQuatToPoseDualQuatToPosedual_quat_to_pose

Alternatives

pose_invertpose_invertPoseInvertPoseInvertpose_invert, hom_mat3d_inverthom_mat3d_invertHomMat3dInvertHomMat3dInverthom_mat3d_invert

See also

dual_quat_normalizedual_quat_normalizeDualQuatNormalizeDualQuatNormalizedual_quat_normalize, serialize_dual_quatserialize_dual_quatSerializeDualQuatSerializeDualQuatserialize_dual_quat, deserialize_dual_quatdeserialize_dual_quatDeserializeDualQuatDeserializeDualQuatdeserialize_dual_quat, dual_quat_trans_line_3ddual_quat_trans_line_3dDualQuatTransLine3dDualQuatTransLine3ddual_quat_trans_line_3d, dual_quat_trans_point_3ddual_quat_trans_point_3dDualQuatTransPoint3dDualQuatTransPoint3ddual_quat_trans_point_3d, quat_conjugatequat_conjugateQuatConjugateQuatConjugatequat_conjugate

Module

Foundation