refinement n. 1.精煉,提煉,提純,純化,精制;凈化;純凈,精美。 2.高尚,優(yōu)雅;改善。 3.(思想、推理、議論等的)精密,微妙;細微的區(qū)別;極致。 a person of refinement 高尚的人。 a refinement of cruelty 陰險刻毒之極的殘忍。
For example , a model incorporating iterative refinement of an initial prototype may be best suited to small - scale trial applications 例如,一個初始樣機的模型合并迭代的改進可能最適合小規(guī)模的試驗性應(yīng)用。
The method reduces the data to search via decomposing the image to several effectual subimages by the wavelet , then reduces the searching space through multi - resolution analysis , and refine the solution using an iterative refinement algorithm finally 該方法利用小波變換將圖像分成若干層次,通過引入有效子圖的概念來降低待搜索的數(shù)據(jù)量,應(yīng)用小波理論的多分辨分析思想來縮小搜索空間,最后通過迭代求精算法實現(xiàn)了圖像的快速、高精度配準。
This thesis discusses the problem free - surface modeling technique of turbine blade according to the property of the runner blade and the present research achievement in free - surface modeling technique , the major study concerned are introduced below : firstly , it accomplished the study of intersection for blade - to - plane and present the method of three - step algorithms such as subdivision > iterative refinements approach ; meanwhile it solved the problem of small area extend of blade by use minimal modulus method 本文針對水輪機葉片的特點,結(jié)合曲面造型技術(shù)的研究現(xiàn)狀,研究了水輪機葉片的nurbs曲線曲面造型問題。主要工作有:第一,完成了葉片與任意平面求交問題的研究,提出分割-迭代-擬合三步求交算法。同時首次應(yīng)用最小二乘擬合端部法解決了葉片的小區(qū)域延展問題。
百科解釋
Iterative refinement is an iterative method proposed by James H. Wilkinson to improve the accuracy of numerical solutions to systems of linear equations.