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Segmentation of Brain Tissue from Magnetic Resonance Images
(1995-01-01)
Segmentation of medical imagery is a challenging problem due to the complexity of the images, as well as to the absence of models of the anatomy that fully capture the possible deformations in each structure. Brain ...
Thread Scheduling Mechanisms for Multiple-Context Parallel Processors
(1995-06-01)
Scheduling tasks to efficiently use the available processor resources is crucial to minimizing the runtime of applications on shared-memory parallel processors. One factor that contributes to poor processor utilization ...
Enhanced Reality Visualization in a Surgical Environment
(1995-01-01)
Enhanced reality visualization is the process of enhancing an image by adding to it information which is not present in the original image. A wide variety of information can be added to an image ranging from hidden ...
Alignment by Maximization of Mutual Information
(1995-03-01)
A new information-theoretic approach is presented for finding the pose of an object in an image. The technique does not require information about the surface properties of the object, besides its shape, and is robust ...
Parameter Estimation in Chaotic Systems
(1995-04-01)
This report examines how to estimate the parameters of a chaotic system given noisy observations of the state behavior of the system. Investigating parameter estimation for chaotic systems is interesting because of ...
Contact Sensing: A Sequential Decision Approach to Sensing Manipulation Contact
(1995-05-01)
This paper describes a new statistical, model-based approach to building a contact state observer. The observer uses measurements of the contact force and position, and prior information about the task encoded in a ...
Passive Dynamics in the Control of Gymnastic Maneuvers
(1995-03-01)
The control of aerial gymnastic maneuvers is challenging because these maneuvers frequently involve complex rotational motion and because the performer has limited control of the maneuver during flight. A performer can ...
Embodiment and Manipulation Learning Process for a Humanoid Hand
(1995-05-01)
Babies are born with simple manipulation capabilities such as reflexes to perceived stimuli. Initial discoveries by babies are accidental until they become coordinated and curious enough to actively investigate their ...
Sequential Optimal Recovery: A Paradigm for Active Learning
(1995-05-12)
In most classical frameworks for learning from examples, it is assumed that examples are randomly drawn and presented to the learner. In this paper, we consider the possibility of a more active learner who is allowed ...
Reciprocal Interactions Between Motion and Form Perception
(1995-04-21)
The processes underlying the perceptual analysis of visual form are believed to have minimal interaction with those subserving the perception of visual motion (Livingstone and Hubel, 1987; Victor and Conte, 1990). ...