Computational Vision and Medical Image Processing IV

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5 CONCLUSION

The general problem of tracking a point feature

throughout an image sequence acquired by a mov-

ing camera requires the implementation of an

algorithm which is able to model the change of the

visual appearance of each feature over time. The

state of the artmotion model used for feature track-

ing is an affine-photometric warping model, which

models both changes in geometry and photometric

conditions. For camera movements which involve

high rotational velocities the 2D displacement of

a point feature between two successive frames will

increase dramatically. This leads to a non-converg-

ing behaviour of the minimisation problem, which ...