Each frame of time-series pictures shot by a camera is converted to a spatial differential frame picture by the following equations: H(i, j) = UNION ¾ G(i+di, j+dj) - G(i, j) ¾ / (Gi, j, max / Gmax), I = Gmax / ä1 + exp(-0.02(H - 80))ü, where UNION denotes a sum over di = -1 to 1 and dj = -1 to 1, Gi,j,max denotes the maximum pixel value of 3x3 pixels having its center at the i-th row and j-th column, and Gmax denotes the assumable maximum value 255 of the pixel value G(i, j). Moving objects at a time t are discriminated based on a correlation between spatial differential frame pictures at times (t-1) and t and a discrimination result of moving objects included in the spatial differential frame picture at the time (t-1) .
Method and apparatus for tracking moving objects in pictures
Verfahren und Gerät zur Verfolgung von sich bewegenden Objekten in Bildern
Méthode et appareil de poursuite d'objets mobiles dans des images
2017-02-22
Patent
Elektronische Ressource
Englisch
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