The use of visual landmarks for robot localisation is a promising field. It is apparent that the success of localisation by visual landmarks depends on the landmarks chosen. Good landmarks are those which remain reliable over time and through changes in position and orientation. This paper describes a system which learns places by automatically selecting landmarks from panoramic images and uses...

Conversation protocols are used to achieve certain goals or to bring about certain states in the world. Therefore, one may identify the landmarks or the states that must be brought about during the goal-directed execution of a protocol. Accordingly, the landmarks, characterized by propositions that are true in the state represented by that landmark, are the most important aspect of a protocol. ...

In this work, robot navigation is approached using visual landmarks. Landmarks are not preselected or otherwise defined a priori; they are extracted automatically during a learning phase. To facilitate this, a saliency map is constructed on the basis of which potential landmarks are highlighted. This is used in conjunction with a modeldriven segregation of the workspace to further delineate sea...

BACKGROUND External ventricular drainage (EVD) is an emergency process intended to reduce intracranial hypertension resulting from the obstruction of cerebrospinal fluid (CSF) flow. This creates a temporary situation to extract CSF that cannot pass through normally. Knowing the surface anatomy for EVD implantation is important to prevent its inadvertent complications. The external landmarks hav...

Landmarks for a planning problem are subgoals that are necessarily made true at some point in the execution of any plan. Since verifying that a fact is a landmark is PSPACE-complete, earlier approaches have focused on finding landmarks for the delete relaxation Π. Furthermore, some of these approaches have approximated this set of landmarks, although it has been shown that the complete set of c...

Key features: Internationally renowned specialists and pioneers from Europe and the United States as editors and contributors Full-color photos from fresh cadaver dissections illustrate all steps for each approach Specific anatomic landmarks as revealed during each step are detailed, providing confidence in spatial orientation Correlative CT sections provide crucial additional information Risks...

Angular measures to point landmarks such as mountain peaks can be used to navigate through large, unstructured environments if the landmarks have been matched to a map and their left to right order in the view is known. This paper addresses the problem of ordering those landmarks. Experiments run in simulation show that simple geometric properties can often be used to order landmarks, avoiding ...

We present a model that uses binocular visual input to detect landmarks and estimates their distance based on disparity between the two images. Feature detectors provide input to saliency maps that find landmarks as combinations of features. Interactions between feature detectors for the left and right images and between the saliency maps enables corresponding landmarks to be found. We test the...