کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4952643 1442483 2016 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Conformal freeform surfaces
ترجمه فارسی عنوان
سطوح آزاد فرم سازگار
کلمات کلیدی
سطوح آزاد سلسله مراتبی، سطوح ثابت، روش حداقل مربع،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر گرافیک کامپیوتری و طراحی به کمک کامپیوتر
چکیده انگلیسی
The conformality of freeform surfaces highly affects their rendering and tessellation results. To improve the conformality of freeform surfaces, a novel freeform surface representation named hierarchical freeform surfaces is presented in this paper. The conformality energy of hierarchical freeform surfaces is first formulated and its numerical approximation is then constructed using the composite Simpson's rule. By constructing the parameterization of the initial freeform transformation using the Ricci flow method, the optimal freeform transformation is obtained by the Levenberg-Marquardt method, which is further interleaved with the freeform refinement procedure to generate a hierarchical freeform surface with bounded conformality deviations. Examples are given to show the performance of our algorithm for rendering and tessellation applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer-Aided Design - Volume 81, December 2016, Pages 48-60
نویسندگان
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