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This paper describes a novel approach for rigid object segmentation from a dynamic background using a pre-recorded video with a moving camera, and we apply it to the problem of vessel segmentation in a maritime video scene. The difficulty of modeling background appearance or/and dynamic, modeling object appearance, and compensating camera motion renders this task very challenging. Therefore, the proposed...
We describe an alternative method to tracking for analyzing the motion of fluorescent spots in 3D+time video-microscopy. First, we realize motion detection by viewing the 3D+T spatio-temporal as a single 4D volume and detecting simultaneous significant change in the fluorescence of groups of neighboring voxels as spatio-temporal locations with high intensity. This step outputs spatio-temporal locations...
We describe a novel automatic approach for vesicle trafficking analysis in 3D+T videomicroscopy. Tracking individually objects in time in 3D+T videomicroscopy is known to be a very tedious job and leads generally to unreliable results. So instead, our method proceeds by first identifying trafficking regions in the 3D volume and next analysing at them the vesicle trafficking. The latter is viewed as...
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