| abstract |
An image processing method for extracting a threadlike structure (GW) represented in an image, comprising a phase of acquisition ( 10 ) of a sequence of images, including an image of a present instant (t) in which the threadlike structure is to be extracted and an image of a past instant (t- 1 ) in which the threadlike structure is detected as a string of points (G t-1 ), and further comprising a phase of prediction ( 20 ) of a silhouette (Ĝ t ) of the threadlike structure estimated from said detected string of points (G t-1 ), of the image of the past instant, a phase of pursuit ( 30 ) for extracting a final string of points (G t ) representing the threadlike structure in the image of the present instant t, including steps of estimation of constraints (C 2 t , θ) based on said silhouette (Ĝ t ) for performing said extraction. |