Watersheds in Digital Spaces: An Efficient Algorithm Based on Immersion Simulations
IEEE Transactions on Pattern Analysis and Machine Intelligence
Thinning Methodologies-A Comprehensive Survey
IEEE Transactions on Pattern Analysis and Machine Intelligence
Efficient labelling algorithms for the maximum noncrossing matching problem
Discrete Applied Mathematics - Special issue on new frontiers in the theory and practice of combinatorial optimization: applications in manufacturing and VLSI design
Scale-Space Theory in Computer Vision
Scale-Space Theory in Computer Vision
Tracking Cell Signals in Fluorescent Images
CVPR '05 Proceedings of the 2005 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR'05) - Workshops - Volume 03
Distance regularized level set evolution and its application to image segmentation
IEEE Transactions on Image Processing
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Automatically detecting and tracking the motion of Myxococcus xanthus bacteria provide essential information for studying bacterial cell motility mechanisms and collective behaviors. However, this problem is difficult due to the low contrast of microscopy images, cell clustering and colliding behaviors, etc. To overcome these difficulties, our approach starts with a level set based pre-segmentation of cell clusters, followed by an enhancement of the rod-like cell features and detection of individual bacterium within each cluster. A novel method based on "spikes" of the outer medial axis is applied to divide touching (colliding) cells. The tracking of cell motion is accomplished by a non-crossing bipartite graph matching scheme that matches not only individual cells but also the neighboring structures around each cell. Our approach was evaluated on image sequences of moving M. xanthus bacteria close to the edge of their swarms, achieving high accuracy on the test data sets.