IMAGE PROCESSING METHOD AND SYSTEM FOR EXTRACTING A STRING OF POINTS FOLLOWING A THREADLIKE STRUCTURE IN A SEQUENCE OF IMAGES

摘要

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 (Gt-1), and further comprising a phase of prediction (20) of a silhouette (Gt) of the threadlike structure estimated from said detected string of points (Gt-1), of the image of the past instant, a phase of pursuit (30) for extracting a final string of points (Gt) representing the threadlike structure in the image of the present instant t, including steps of estimation of constraints (C2t, theta ) based on said silhouette (Gt) for performing said extraction.