似幾何圖形的 的英文怎麼說
中文拼音 [sìjīhétúxíngde]
似幾何圖形的
英文
geometric-
The design shows geometric patterns composed of spiral squares and circles which closely resemble those on bronze age artefacts
石刻紋飾由正方及圓形幾何紋構成，與古代青銅器上的圖案極相似。This geometrical form suggests that the city is a purely artificial construction which might conceivably be taken apart and put together again.
這種幾何圖形令人覺得，似乎城市是一種純粹的人工構築物，可以隨意拆開，又可以隨意拼合。12 orrite c, blecua s, herrero j e. shape matching of partially occluded curves invariant under projective transformation. computer vision and image understanding, 2004, 93 : 34 - 64
此外，匹配的特徵相似性度量結合了非均勻有理b樣條的畸變估計和局部的圖形窗口交叉相關性，從而融合了幾何結構和圖像灰度的相似性。The fractal is a geometrical figure with self - similar symmetry, and it is an important tool for characterizing irregular structures in nature that are self - similar on certain length scales. for example, the koch curves can be viewed as a mathematical model for coastlines, percolation model can be used to mimic mixture of mental and insulator, self - avoiding walks can serve as a model for linear polymers, and rock fracture mode can stimulate the process of brittle fracture of rock, and so on
分形是具有自相似對稱性的幾何圖形，可用來模擬自然界中在一定尺度范圍內具有自相似對稱性的不規則結構，如koch曲線可用來模擬海岸線，滲流模型可模擬金屬絕緣體混合物，自迴避無規行走模型可模擬線性聚合物，巖裂模型可模擬真實巖體的脆性破裂等。As soon as i stepped into the celestial clothes store, two fellow initiates greeted me with lovely smiles and invited me to try on some jewelry items. i was bashful at first and politely refused. just as i was appreciating the exhibits, another sister came over and showed me a ring entitled " positive victory.
穿得好漂亮，一位穿著紫色綴著金黃的衣服，質料像輕紗第二位穿著藍色褲裝，非常高雅另一位穿著有一塊塊四方幾何圖形的衣服，還佩掛著腳煉天飾，似乎在傳達什麼訊息，三位長住停留一會兒就離去了。The author ' s work gives new way, which is beneficial to real time interaction and can efficiently reduce computing time as well as data storage amount. these algorithms can find good use in numerical machining, robotics, form - position tolerance and computer graphics. ( 3 ) degree reduction for nurbs curves and surfaces by applying the theory of the best uniform approximation of chebyshev polynomials and the explicit matrix representation of nurbs curves, this thesis centers on the research of the explicit nearly best approximation of multi - degree reduction of nurbs curves
以上關于等距曲線的幾何逼近與代數逼近的演算法改革了當前國際圖形界只能對基曲線沿法矢方向平移定距離的點作近似逼近的固定模式，創造了利於交互操作，能有效地減少計算量及數據存儲量的新方法，可在數控加工、浙江大學碩士學位論文機器人、形位公差學、計算機圖形學中獲得很好的應用（ 3 ） nurbs曲線曲面降階應用nurbs曲線的顯式矩陣表示及chebyshev多項式逼近理論，以實現nurbs曲線顯式一次性降多階的近似最佳逼近為目標進行了研究It was showed that dlc gradient film material had a good stability of hemocompatibility, for its surface almost had no changes. in comparison, the hemocompatibility of t16a14v became worse since its surface had been heavily scratched and dense oxide films on its surface had been destroyed. fratal theory and image processing method had been applied to calculate the fratal dimension of tribological surfaces furthermore to elavuate the surface morphology and roughness
摩擦表面具有多尺度相似性和隨機性的特點，採用分形幾何理論描述表面的粗糙程度及形貌特徵，三維表面的分形維數可以作為一種尺度無關的粗糙度評定參數，利用圖象處理方法，通過材料表面的掃描電鏡sem圖象灰度數據來計算三維表面的分形維數。Applying the above - mentioned method, the author developed an approximate developing - mapping system based on catia v5 using vb, realized the development computing of panel surface and auto - drawing of developed shape in catia, dealt with the problem : getting mesh data from analysis & simulation module of catia, picking up structure information data in iges, showing 2d developed model in catia
應用上述幾何展開演算法，作者基於windowsnt 2000 xp系統和catiav5平臺用visualbasic開發了一套「不可展曲面近似展開和內部結構信息映射系統」軟體，簡稱demaps系統，實現了飛機壁板類零件的展開計算和展開圖形自動繪制。Abstract : based on the basic concept of the revolving shell, the equation of the middle surface generatrix of the approximate ellipsoid portion of the ellipsoidal head is derived, the unwrapped area and the unwrapped diameter of the ellipsoidal head are calculated, the result is compared with that of derived from the real ellipsoid and that of calculated from the empirical equation, relative chart and code are given out, which could be used by manufactures for reference
文摘:根據回轉殼體的基本概念，推導了橢圓封頭的近似橢圓殼部分的中面母線方程，據此推導計算了橢圓封頭的展開面積及展開圓直徑，並根據橢圓殼幾何形狀推導的結果與經驗公式所得結果進行了比較，給出了有關圖表及計算程序，可供製造單位參考使用。Wiener method is based on statistics estimated from a local neighborhood of each pixel. ( 2 ) acquisition of head and brain volumetric data and development real head and brain reconstruction and visualization algorithms : by using threshold technique and morphological operations such as dilate and erosion, head segmented data were obtained. to obtain the brain segmented data, construct an initial template, design and developed a naval algorithm to make the initial template dynamic change with image slice to get the brain data ; designed a framework for searching, sampling and storing contour data
採用灰度閾值技術和數學形態學的操作獲取頭的數據；在對腦的分割中，本文提出了一種根據腦圖像特點和相鄰圖像在幾何結構上具有相似性的特點，構建了自適應模板匹配檢測腦的方法：首先選擇其中最易處理的圖片應用閾值化演算法和形態學方法提取出腦輪廓，然後根據相鄰圖像之間形態具有相似性的特點，再利用形態學演算法實現腦體數據分割的操作。Fractal image compression, as a fire - new scheme of image compression, based on the self - similarity and proportion of image, it implements the image data compression by eliminating the image geometry redundancy
基於分形的圖像壓縮編碼方法是一種全新的編碼方法，它利用的是圖像的自相似性及比例特性，通過消除圖像的幾何冗餘度來實現圖像數據的壓縮。Geometric figures of similar transtormation
相似變換下的幾何圖形In this paper, we first established the image metadata used in our system which based on the famous dublin core, then we analyzed the abstraction and description visual features of image such as color texture and shape. next, we discussed the problem of similarity measure of visual feature, imported fuzzy logic into the distance feature and pointed out the disadvantages of geometry space based methods. for multi - dimension vector ' s high dimension nature, it ' s hard to index with traditional methods, we discussed how to lower the dimension using clustering and klt transformation
本文首先在dublincore的基礎上制定了適合我們要求的圖像元數據集；詳細分析了顏色、紋理、形狀等視覺特徵的提取和表示方法；探討了圖像視覺特徵相似度量的問題，將模糊技術引入直方圖的距離度量，分析了幾何空間距離度量函數的不足之處，提出了系統中採用的距離函數；針對圖像視覺特徵向量的多維特性，分析了現有的各種降維技術和多維索引技術。分享友人