Abstract
In recent years, cell tracking methods by detection have become more and more popular because they outperformed cell tracking methods by contour evolution in most practical cell tracking applications. Yet, the most frequently used segmentation technique by cell detection methods is still threshold selection that is determined manually or by algorithms proposed in the 1970s. As a whole, these old threshold selection methods could not meet the accuracy requirement of cell detection adequately. In this paper, we propose a new approach of cell tracking by detection based on a multiple-threshold segmentation method that calculates multiple thresholds automatically and robustly. After cell detection, the proposed approach generates the timeline moving trajectory of a cell by connecting the cell positions along the time lapse image sequences based on morphological operations. We use four types of cells to verify the effectiveness of the proposed approach and the experimental results are favorable.
Highlights
Due to the advances in optical imaging and image processing, image cytometry has made great progress in recent years
As its central problem in many studies, cell segmentation faces the following world-widely recognized challenges. (1), the great variety of cells takes on various shapes, sizes, intensity distributions and edges. (2), the contrast between the cell and the background might be lower than the contrast between cells
The second challenge requires robust image segmentation methods and threshold selection method has been recognized as the best choice
Summary
Due to the advances in optical imaging and image processing, image cytometry has made great progress in recent years. After the slope difference distribution S(x) of the current frame is computed, the optimal intensity threshold T1 of the cell image is calculated as follows.
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