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Fig. 2 | BioMedical Engineering OnLine

Fig. 2

From: Camera-based photoplethysmography in an intraoperative setting

Fig. 2

Example for a segmentation process using level set methods. a Initialization point. b Point during segmentation. c Point when process has converged. The inside region \(\Omega _1\) and the outside region \(\Omega _2\) are implicitly described and changed by \(\Phi.\) The contour \(\Phi =0\) is depicted separately in the images below the graphs. Please note that t represents the segmentation time for an image and does not refer to the time component in the videos. The eye section was blurred if it was visible

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