These points are known as salient points . Because salient points are not easily confused with other points within the object, they have a higher probability of successfully being relocated in new images containing examples of the object. Thus salient points should make good landmark points. The bottom left image shows a saliency image. This indicates the saliency of each area of the face.
White areas are the most salient and dark areas are the least.
The bottom right image is the original image of the face with the most salient points marked. These coincide with landmark points which might be positioned intuitively. Locating Salient Points in Multiple Images Locating salient points in a single image has a number of problems. To solve these problems we have looked at locating salient points by considering a number of training examples. We have shown that salient points can be relocated in similar images with a higher degree of success than hand chosen landmarks.