Affine Snakes in Vector fields

    B-Thesis

    Abstract

    Vector fields are used to develop many interesting algorithms. In this project, we developed an algorithm that evolves a curve guided by the gradient information derived from a region on an image. We evaluate our method on a medical image dataset for Optic Disc segmentation.

    Computed Vector Fields

    Computed Vector Fields
    GVF (Gradient Vector Field)
    EPGVF (Edge-Preserving GVF)

    Algorithm Comparison

    Algorithm Comparison
    Fig. shows the difference between our algorithm working on two different vector fields — GVF and EPGVF.

    Multiple Regions of Interest

    Multiple Regions of Interest
    Our algorithm working on multiple regions of interest.

    Video

    Here you see a real-time video of the Optimization and Curve evolution.
    computer-graphics