Binocular stereo is an ill-posed problem that has to be regularised with respect to partial occlusions and homogeneous textures for obtaining a unique solution. We analyse typical errors of the dynamic programming stereo based on a probabilistic regularisation of partial occlusions. Experiments show that the reconstruction is accurate until occlusions do not prevail over the binocularly visible...

Two experiments systematically examined factors that influence infants' manual search for hidden objects (N=96). Experiment 1 used a new procedure to assess infants' search for partially versus totally occluded objects. Results showed that 8.75-month-old infants solved partial occlusions by removing the occluder and uncovering the object, but these same infants failed to use this skill on total...

1Higher Institute of Biotechnology, Monastir, Tunisia. 2Department of Ophthalmology, Farhat Hached University Hospital, Sousse, Tunisia. Haematology and Autoimmune Diseases Unit, Faculty of Pharmacy, University of Monastir, Tunisia. Received: 29/04/03; accepted: 23/12/03 ABSTRACT Antiphospholipid antibodies may play an important role in the pathogenesis of retinal vascular occlusions; therefore...

background: the presence of significant carotid stenosis in coronary artery bypass grafting (cabg) patients increases the risk of either transient ischemic attack or stroke. however, there is a dearth of data on the risk for patients with unilateral total occlusion of the carotid artery. we herein report our results of cardiac surgery in patients with unilateral total occlusion of the carotid a...

Spontaneous antenatal hypoxia is associated with high risk of adverse outcomes, however, there is little information on neural adaptation to labor-like insults. Chronically instrumented near-term sheep fetuses (125 ± 3 days, mean ± SEM) with baseline PaO2 < 17 mmHg (hypoxic group: n = 8) or > 17 mmHg (normoxic group: n = 8) received 1-minute umbilical cord occlusions repeated every 5 minutes fo...

Acute symptomatic occlusion of the cervical internal carotid artery (ICA) can be treated by intravenous administration of tissue plasminogen activator, percutaneous transluminal angioplasty, and carotid endarterectomy. Carotid artery stenting (CAS) is now indicated for cervical ICA stenosis, but the safety and the efficacy of urgent CAS have not been established. We retrospectively reviewed 10 ...

The automated tracking of social insects, such as ants, could greatly increase the speed and reliability of gathering data used in studying their complex behaviors. Recently, data association based multipleobject tracking approaches have shown promise in improving tracking during occlusion. However, due to the high density and occlusion rate present in ant video, tracking is still prone to (1) ...

We study the problem of how to detect interesting objects appeared in a given image I Our approach is to treat it as a function approximation problem based on an over redundant basis Since the ba sis a library of image templates is over redundant there are in nitely many ways to decompose I To select the best decomposition we rst propose a global optimization procedure that considers a concave ...

We present a method to extract relative depth information from an uncalibrated monocular video sequence. Our method detects occlusions caused by an object moving in a static scene to infer relative depth relationships between scene parts. Our approach does not rely on any strong assumptions about the object or the scene to aid in this segmentation into layers. In general, the problem of buildin...