For this new force field, the expected intensity of an object must be estimated. We propose a technique which calculates this estimation out of the image.

We propose a new external force field which is calculated for every object independently. This new force field uses prior knowledge about the intensity of the ...

ABSTRACT. Active contours or snakes are widely used for segmentation and tracking. Multiple object tracking remains a difficult task, characterised by a ...

Active contours or snakes are widely used for segmentation and tracking. Multiple object tracking remains a difficult task, characterised by a trade off ...

However, if there is more than one object in the image and the snake is partly located between two objects, the GVF force field pulls the snake to both objects ...

Active contours or snakes are widely used for segmentation and tracking. The ability of a snake to track an object depends on the movement of the object.

Active contours, or snakes, have a wide range of applications in object segmentation, which use an energy minimizing spline to extract objects' borders.

Active contours or snakes are widely used for segmentation and tracking. The ability of a snake to track an object depends on the movement of the object.

The main advantages of the GVF field are that it can capture a snake from a long range — from either side of the object boundary — and can force it into concave ...

In this section we present several examples that compare different snake models with the GVF snake, ... Tracking deformable objects in the plane using an active ...