نتایج جستجو برای: deformable face model

تعداد نتایج: 2245378  

Journal: :IEEE Transactions on Medical Imaging 2001

Journal: :international journal of data envelopment analysis 0
sevan sohraiee department of mathematics, faculty of sciences, tehran north branch, islamic azad university, tehran, iran

the problem of utilizing undesirable (bad) outputs in dea models often need replacing the assumption of free disposability of outputs by weak disposability of outputs. the kuosmanen technology is the only correct representation of the fully convex technology exhibiting weak disposability of bad and good outputs. also, there are some specific features of non-radial data envelopment analysis (dea...

2010
Fouad F. Khalil Pierre Payeur Ana-Maria Cretu

Designing a dexterous robotic hand able to interact intelligently with deformable objects constitutes a challenging area of research where many issues are yet to be solved. The complexity of such interactions requires the assistance of intelligent multisensory robotic systems that combine measurements collected from different sensors in order to accurately plan for the forces to be applied on t...

Journal: :Medical image analysis 1996
Tim McInerney Demetri Terzopoulos

This article surveys deformable models, a promising and vigorously researched computer-assisted medical image analysis technique. Among model-based techniques, deformable models offer a unique and powerful approach to image analysis that combines geometry, physics and approximation theory. They have proven to be effective in segmenting, matching and tracking anatomic structures by exploiting (b...

Journal: :Computers & Graphics 2010
Carlos Garre Miguel A. Otaduy

In many haptic applications, the user interacts with the virtual environment through a rigid tool. Tool-based interaction is suitable in many applications, but the constraint of using rigid tools is not applicable to some situations, such as the use of catheters in virtual surgery, or of a rubber part in an assembly simulation. Rigid-tool-based interaction is also unable to provide force feedba...

2010
Ravindra Hegadi Arpana Kop Mallikarjun Hangarge Tim McInerney J. L. Prince A. A. Amini T. E. Weymouth

Deformable models provide a promising and vigorously researched model-based approach to computer-assisted medical image analysis. The widely recognized potency of deformable models stems from their ability to segment, match, and track images of anatomic structures by exploiting (bottom-up) constraints derived from the image data together with (top-down) a priori knowledge about the location, si...

2002
Bo Pang Kuanquan Wang David Zhang Fengmiao Zhang

Automated tongue image segmentation in Chinese medicine is difficult due to two special factors: (1) There are a lot of pathological details on the surface of tongue, which have a large influence on edge extraction; (2) The shapes of tongue bodies captured from various diseases or persons are quite different, so they are impossible to be properly described by a predefined deformable template. T...

1996
Kwok-Wai Cheung Dit-Yan Yeung Roland T. Chin

Following the success of applying deformable models to feature extraction, a natural next step is to apply such models to pattern classiication. Recently, we have cast a deformable model under a Bayesian framework for classiication, giving promising results. However, deformable model methods are computation-ally expensive due to the required iterative optimization process. The problem is even m...

2007
Joo-Young Park Tim McInerney Demetri Terzopoulos Myoung-Hee Ki

Deformable surface models provide a very attractive method for segmenting the three-dimensional shape of complex and various internal organs from volumetric medical images. However, although researchers have succeeded in overcoming some of the limitations of this approach, there still exist several significant unsolved problems. In this paper, we propose a multi-featured multi-scale deformable ...

2006
Rafal STEGIERSKI Pawel MIKOLAJCZAK

Nowadays exist many different methods of computer assisted face reconstruction. Part of them are based on the deformation of the model face. Article presents this kind of method which incorporates the fast methods of deformation of the triangle mesh and vertices selection. Importance of the forensic face reconstruction with no doubt is known for everyone. When other methods of identification of...

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