相似圖形 的英文怎麼說
中文拼音 [xiāngsìtúxíng]
相似圖形
英文
similar figures-
And understanding and studying the spectral features and variation rules of geo - targets in the experimental area, raising that it is the basis of geo - targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo - targets, realizing that in a great extent spectral - integrated - form - based classification method can remove the phenomenon of " different spectrum with same objects " resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo - target with similar spectral forms and much different values of whole reflection ratio. it is suggested that " red edge " range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel - based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. the remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed
研究結果如下：首先針對荒漠化地區的地物特徵，對高光譜數據不同波段的數據質量、波段組合進行了評價，提出了適用於荒漠化監測的基本波段選擇集；初步了解和掌握了研究地區的地物光譜特性及變異規律，進一步明確了掌握地物光譜特徵和變異規律是用成像光譜儀數據提取地物信息的基礎；發現了基於光譜整體形狀的分類方法在很大程度上能夠消除由於傳感器、地物目標觀測方向之間的角度變化引起的反射率曲線整體平移的「同物異譜」現象，對于譜形相似而整體反射率的值相差較大的兩類地物，通過引入均值和方差圖像參與分類得到解決；研究還表明在植被「紅邊」范圍內的波段是進行荒漠化監測的主要特徵波段，這些波段與植被生物量和蓋度都有密切的關系，是開展精細植被分類研究和植被定量反演的重要基礎；像元的導數光譜分析可以消除土壤背景的影響，是進行植被生物量和蓋度定量反演的有力工具；建立了荒漠化監測主要評價因子的定量反演模型，並分析了模型的適用性。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。The simulative cloud image, made from the mixing ratios of cloud liquid water, rain water, ice crystal, snow, graupel which were outputted by the mesoscale model mm5, resemble the gms satellite infrared image very well and also show the cloud evolution of typhoon winnie from tropical cyclone to extratropical cyclone after landing
利用高解析度中尺度數值模式輸出的大氣中雲水冰水雨水雪水成功地模擬出1997年登陸臺風winnie的雲系結構。模擬雲圖與氣象衛星實際觀測的臺風雲圖非常相似。由於模擬雲圖可以給出大氣中不同形態水物質的三維空間分佈，彌補了衛星只能觀測雲頂表面的不足。Not only was the pattern of recordings along the artificial lateral line similar to the pattern recorded from the nerve cells of a real fish, but the computer could also decipher it to follow the source of the pulse as it moved along different paths
結果顯示不僅該系統記錄的圖形與從真正的魚身上的神經細胞所記錄的圖形相似，而且配套的電腦程序還能通過對記錄圖形的解讀來追蹤沿著不同路徑移動的脈沖水波的源頭。The vegetable kingdom perceives that lima beans could be fermented in a similar manner creating parallel products unto soy beans ; and lima beans can ascend into another blueprint producing even more nutrition suited to crystalline biology
蔬菜王國發現利馬豆可以以類似方式發酵出與大豆相似的產物，並且利馬豆可以提升入一個不同的藍圖來提供適合水晶形體的更多營養。Based on the theory of the extended fractal dimension, this paper studied the attenuation level of self - similarity of various map objects with the variety of the map scale, and researched further the relationship between the scale level factor of map features and fractal attenuation
以擴展分維作為理論基礎，從變維分析的角度出發，研究地圖目標的自相似程度隨比例尺變化而衰減的規律，進一步研究地圖目標的尺度指標與分形衰減之間的關系。Fractal coding has been proved useful for image compression. it is also proved effective for content - based image retrieval. in the paper, we present a block - constrained fractal coding scheme and a matching strategy for content - based image retrieval. in this coding scheme, an image is partitioned into non - overlap blocks of a size close to that of a query iconic image. fractal codes are generated for each block independently. in the similarity measure of fractal codes, an improved nona - tree decomposition scheme is adopted to avoid matching the fractal codes globally in order to reduce computational complexity. our experimental results show that our coding scheme and the matching strategy we adopted is useful for image retrieval, and is compared favorably with other two methods tested in terms of storage usage and computing time
分形編碼在圖像壓縮方面取得了很好的效果，同時，分形編碼也能夠用於基於內容的圖像檢索.本文提出了一種基於塊限制的分形編碼演算法和匹配策略，並將它們用於圖像檢索.在我們編碼演算法中，圖像會被預先分成互相不重疊的子圖像塊，然後對這些子圖像進行獨立地分形編碼，從而獲得整幅圖像的分形碼.該編碼演算法能夠在很大程度上減少編碼時間.在進行圖像間相似性的匹配時，我們採用改進的基於九叉樹的分配策略，從而避免全局地進行分形碼的匹配，減少了計算量.實驗結果說明，我們的編碼演算法和匹配策略能夠比較有效地應用於基於內容的圖像檢索，在計算時間和存儲時間上都優于實驗中其它兩種方法Let's consider the sawtooth pattern of similar triangles in fig. 9.
我們來研究圖9中一組相似三角形的鋸齒形模型。From graphic similitude to object similitude
從圖形相似到事物相似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 wavelet multi - analysis is adopted to further understand the microstructure of solids holdup fluctuation, the vivid fingermark images show that it is a fractal and dissipative structure. the low and frequency signals reflect the dilute phase fluctuation behavior and dense phase ( cluster ) fluctuation behavior, respectively. to deep understand the multi - scales characteristic of gas - solids circulating fluidization, the wp decompose methods for obtaining the eigenvalue of gas - solid fluidized bed has been developed. the results show that eigenvalues of different scales are effective for identification of non - uniform and dynamic structure of gas - solid fluidized bed
小波多分辨分析法得到指紋圖形象地揭示了顆粒濃度脈動的自相似、分叉等具有混沌特徵的微觀結構；小波分解后信號中的低頻和高頻成分分別代表了稀相和密相的脈動行為，小波包分解提取能量特徵值的方法能夠揭示氣固的多尺度特性，不同尺度上的能量特徵值四川大學碩十論文反映了氣固循環流化系統中存在的非均勻動態時空結構。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。A new image similarity retrieval method based on shape
一種基於形狀的圖像相似性檢索方法We provided a new method that tried to transform the whole image to featured space and facilitated identification and self - elimination of disturbance according to the hue and luminosity features of eyes of human being. we gave the definition and description of the transformed space. a wavelet - texture filter was designed to distill space - transform - based feature of the image itself was executed
根據人眼對顏色、亮度等不同的敏感性以及圖像本身的性質，仿人眼變換域分析圖像形成光學濾色鏡效果，減少復雜背景顏色和相似形狀的多重干擾，並以此定義和表徵變換域特徵空間，給出變換域小波紋理車牌特徵，成功提取車牌字元區域； 2And based on these theories and methods, an image retrieval by region units is presented. first, when scan image orderly, continuously incorporate neighbor similar pixels in color and get several region units. then, write the values of color, shape, and position into database
基於這些理論與方法，提出了一種以區域塊為單位的圖像檢索方法，其基本思想是在順序掃描圖像的同時，運用遞歸演算法不斷合併四鄰域相似顏色象素得到若干區域塊，同時記錄下區域塊的顏色、形狀和位置等量化特徵。In the end of the paper, the development of the software is introduced and an example for floating - end heat exchanger design is given to show the usefulness of the system and the effect. the method presented in this paper makes use of database to save and manage the standard sizes data and makes use of drawing libraries to save and manager the parts and assembly drawings. the theory of fixed patterns with flexible sizes is used to generate the parts and assembly drawings
文中提出的方法充分利用了數據庫技術對換熱器系列標準化尺寸數據進行有效的存儲與管理，利用圖庫對結構相同或相似的視圖進行分級分類存儲與管理，利用「死圖活尺寸」的圖形生成原理快捷地生成各種型號浮頭式換熱器的零部件圖和裝配圖，實現了浮頭式換熱器的輔助設計計算和自動繪圖的功能；所開發的軟體使得換熱器設計中許多實際問題得到圓滿解決，軟體開發方法具有通用性，對其它類型的換熱器輔助設計系統的開發有重要的參考價值，在該領域中將有良好的應用前景。Visual analysis of human motion has been receiving increasing attention from researchers in the fields of image processing and computer vision during the past few years. it has a lot of applications in virtual reality, smart surveillance system, advanced user interface, motion analysis and video compressing, etc. this paper focuses on the technology of human motion tracking based on video, first, we make a summarization of the domestic and overseas status of the research in this field. on the basis of this, we analyse the technical difficulties of human motion tracking. as most of the existing model - based methods of human motion tracking perform not so good in some situation as they need mannual intervention, and also the precision of tracking is not so satisfying during the research of tracking of walking people because of the self - occlusion of legs, this paper proposes an algorithm of automatic detection and tracking of legs of the walking people based on monocular image sequences, in which we analyse the features of walking people, track the five joints of lower limbs, get various parameters, and then re - construct the walking process. the main research achievement is as follows : 1 ) we propose an algorithm of markerless automatic extraction of leg skeleton. first we divide the video into continuous image sequences, after background subtraction, the satisfying human region could be extracted, then we get a single - connected region by converting the rgb image to binary image and median filtering. afterwards, the contour of lower limbs in the frame with a widest boundingbox is detected, using sobel operator, to find the ankle joint of leg behind according to the features and rules of walking, then, the joint of knee of leg behind, hip, ankle of leg in front, knee of leg in front could be got in turn. so, model of leg skeleton is constructed
首先將視頻分解成許多連續的靜態圖像幀，經過背景去除，把感興趣的人體區域提取出來，通過二值化，中值濾波等預處理方法得到只有人體的一個單連通區域，然後用sobel運算元檢測出boundingbox最寬幀中人體下半身的輪廓，根據運動規律及特徵找到後腿踝關節點，結合從boundingbox最窄幀中所獲取的腿長依次得到後腿膝關節，跨部關節，前腿踝關節，前腿膝關節四點，從而構建出腿部骨架模型。 2 ）實現了人體步行腿部骨架的跟蹤演算法。在完成對腿部骨架模型的自動初始化之後，本文對跨關節、膝關節及踝關節分別採用運動建模、圓周相交定點演算法、運動預測及預測點周圍搜索rgb相似矩形塊三種方法確定每一幀中其實際坐標，從而重構出腿部骨架的運動過程。If the temperature depends only upon two coordinates the conform figure can be applied.
如果溫度僅僅由兩個座標決定，就可以採用相似圖形。We say that the figure f fits in the target t, or, equivalently, the target t covers the figure f, when there is a rigid motion ( an isometry of the plane ) so that ( f ) t, i. e., if t has a subset congruent to f. it might happen that a specific figure f and target t are given, and one wants to know if the figure fits in the target
如果t含有與f全等的子集，則稱f嵌人t或t覆蓋f對任意給定的f和t ，判定f是否嵌入t這類問題稱為嵌入問題給定一集族f和一目標集t ，尋找能覆蓋住f中任一元的t的最小相似圖形這類問題稱為覆蓋問題Generally the fractal is regarded as the aggregate state of the big and small fragments and the fractal is a general name to those without characteristic length, including the graphics, structure and phenomena. it is said that the fractal is a figure whose composed parts look like their whole by a certain mode
一般把分形看作大小碎片聚集的狀態，是沒有特徵長度的圖形和構造以及現象的總稱。也可以說，組成部分以某種方式與整體相似的形體叫分形。分形的兩個重要特徵是自相似性和標度不變性。分享友人