کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
441467 691756 2014 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Velocity-based adaptivity of deformable models
ترجمه فارسی عنوان
سازگاری مبتنی بر سرعت از مدل های غیر قابل تغییر
کلمات کلیدی
انیمیشن کامپیوتری، انیمیشن مبتنی بر فیزیکی، جامدات قابل تنظیم سینماتیک سازگار
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر گرافیک کامپیوتری و طراحی به کمک کامپیوتر
چکیده انگلیسی


• Adaptive kinematics for deformable objects are proposed.
• The model can simplify/refine in any configuration.
• Several metrics can drive the process (perceptual, physics-based).
• Adaptivity of elastic energy integration is also developed.
• Experimental results are presented, including an application to deformable mesh registration.

A new adaptive model for viscoelastic solids is presented. Unlike previous approaches, it allows seamless transitions, and simplifications in deformed states. The deformation field is generated by a set of physically animated frames. Starting from a fine set of frames and mechanical energy integration points, the model can be coarsened by attaching frames to others, and merging integration points. Since frames can be attached in arbitrary relative positions, simplifications can occur seamlessly in deformed states, without returning to the original shape, which can be recovered later after refinement. We propose a new class of velocity-based simplification criterion based on relative velocities. Integration points can be merged to reduce the computation time even more, and we show how to maintain continuous elastic forces through the levels of detail. Such meshless adaptivity allows significant improvements of computation time during simulations. It also provides a natural approach to coarse-to-fine deformable mesh registration.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Graphics - Volume 45, December 2014, Pages 75–85
نویسندگان
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