التفاصيل البيبلوغرافية
| العنوان: |
A Robust Method for Motion Estimation in Image Sequences. |
| المؤلفون: |
Nagel, Hans-Hellmut, Perales López, Francisco J., Mecke, R., Michaelis, B. |
| المصدر: |
Articulated Motion & Deformable Objects; 2000, p108-119, 12p |
| مستخلص: |
In this paper a robust method for block-based motion analysis in monocular image sequences is considered. Due to the realized recognition of false measurements by a neural recognition system, gross errors in the motion trajectories are avoided. Assuming correspondences between regions in successive images, a model based recursive estimation technique is applied to estimate the motion of the observed image region. For this purpose a Kalman filter is used. The underlying kinematic model contains assumptions about the motion, especially constant velocity components are assumed. Particularly, the existence of problematic image situations (e.g. partial occlusion of objects) leads to gross errors in the measuring values and false motion parameters are estimated. In order to cope with this problem an extension of the filtering algorithm by a neural recognition system is proposed. This system recognizes typical problematic image situations and controls the adaptation of the filter. Selected results for real-world image sequences are described. [ABSTRACT FROM AUTHOR] |
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