This paper introduces a new model of deformable surfaces designed for animation, which we call active implicit surfaces. The underlying idea is to animate a potential field defined by discrete values stored in a grid, rather than directly animating a surface. This surface, defined as an iso-potential of the field, has the ability to follow a given object using a snake-like strategy. Surface ten...

This paper is concerned with the problem of surface reconstruction from stereo images for large scenes having large depth ranges. The passive stereo paradigm is inadequate for this problem because of the need to aim cameras in different directions and to fixate a t different objects. We present an active stereo approach in which the scene is systematically scanned and image acquisition and surf...

There has been renewed interest in the moral arguments surrounding euthanasia. Some patients are now apprehensive of advanced medical technology which they fear may result in a prolonged and undignified death. In the current situation of scarce resources for health care, both patients and doctors could be coerced into considering active euthanasia if it was legally available. In this paper it i...

Changes in active ghrelin levels with time in each group. Active ghrelin levels at 3 hours after surgery were reduced in the surgery/no medication (SNM) group and did not recover by 24 hours after surgery. There was no significant change in the surgery medication (SM) group. Pre-op, pre-operative; Post-op, post-operative; NSNM, no surgery/no medication; NSM, no surgery/medication. The asterisk ...

suspension polymerization processes are significantly important in polymer bead formation. one of the important factors for bead size control in these processes is variation in surface tension. in this research, the prediction of optimum concentration of a surface active agent was investigated on the basis of the experimental surface tension diagrams. the experimental data show that the desired...