Application Example
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Movement trackingTask: For the analysis of the user's activity in front of a computer screen an automatic tracking system is needed. The task is to extract the position of the head and - relative to it - the position of the eye. This information is used to develop a next generation type of user interface.Solution: The problem is solved by putting simple marks in the face of test persons. Using ActivBlobFinder the marks and the pupil of the eye can easily be extracted. The automatic (local) shading correction is used because it allows the extraction under varying illumination conditions. The post-processing capabilities of ActivBlobFinder facilitate the suppression of irrelevant objects. Via ActivFile the coordinates of the marks are written to file to facilitate the final movement analysis. |
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