contour from 中文意思是什麼
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Based on 2m contour of surveyed bathymetry from 1976 to 1999 and mean - high - tidal line distracted from remote sensing images acquired by landsat - 5 tm from 1976 to 2000 respectively, quantitative analysis about alluvion and erosion as well as the relationship between accretion of modern yellow river delta and the water and sediment discharge of yellow river is made, and the results indicate the mean - high - tidal level is more effective than 2m contour of the bathymetry. it is found that the accretion of modem yellow river delta is becoming less and less, what ' s more, erosion is even more than alluvion in some recent years. diaokou promontory has been eroded seriously since yellow river changed its course in1976
以一般高潮線反映現代黃河三角洲沖淤演變時，從1976年黃河改道清水溝流路入海到2000年，整個黃洞三角洲凈造陸201 . 5km ~ 2 ，淤積有逐漸變慢的趨勢，甚至出現凈蝕退的年份；刁口河嘴大量蝕退，蝕退速率開始快速，后來逐漸變慢；清水溝河嘴大量淤積，淤積速率開始迅速，后來逐漸變慢，甚至出現凈蝕退；清水溝河嘴南側到支脈溝一段岸線與刁口河嘴以西到灣灣溝一段岸線基本穩定。 -
Extracting terrain features from contour maps based on united - delaunay - triangulation model
三角網的等高線地形特徵提取研究 -
Contour lines recognition from scanned topographic maps
掃描地形圖中等高線的識別 -
The outcrop of the bed is then drawn through the intersecting contour points bearing in mind the closure directions anticipated from the rule of vs.
考慮到V字形法則預計的圈閉方向，通過等高線交點勾出巖層的露頭線。 -
Care must be taken to distinguish artistically drawn form lines from accurately surveyed contour lines.
一定要注意區分美術畫的線條和準確測量的等高線線條的不同。 -
Firstly, the structures and properties of abs resin, a kind of material for fdm process, are introduced, and theological properties of melted abs filament during extrusion from fdm ' s nozzle are studied in viscosity and elasticity, the research results can provide theoretical guidance for establishing the compensation model of ideal contour line
本論文首先從粘性和彈性兩個方面闡述和研究了熔融態abs熔體從噴頭擠出過程中的流變性能，流變性能的分析和研究不僅有助於更好地理解fdm工藝的擠出絲過程，而且為建立理想輪廓線的補償模型提供了理論依據。 -
When catchment area, average channel gradient and catchment shape factor of designed culvert or bridge are known, a user can be convenient to get local parameters c, e and b from standard contour charts and easy to calculate flood flow just by a calculator. design period of flood flow is enormously shortened as well as a high precision. estimated flood flow through culvert or small bridge by new calculation model is generally less than by traditional methods, so that much cost is cut down a s reducing the span of culvert or small bridge
以75000km ~ 2的川中丘陵地區為試點研究區，繪制了該地區新模型的參數等值線圖，率定了不同設計頻率的改正系數，使設計者只需在地形圖上獲取集水面積，河道平均坡降和流域形狀系數，在參數等值線圖上查得橋涵所在地的相應參數，使用計算器即可迅速計算出設計流量，大大縮短了設計周期，且精度較高，設計的洪水流量一般低於傳統方法，從而可減小橋涵跨徑，節省投資。 -
The tsf method combines efficiently llsf and tri - cubic spline interpolation, learns from others " strong points to offset one ' s weaknesses, so has rapidity and high accuracy of computation and is suitable for contour surface drawing in real - time. 3
該方法綜合多元樣條擬合法與局部加權最小二乘法，揚長避短，不僅保證了逼近精度，提高了計算速度，而且加密計算的結果可直接應用於等位面的實時顯示。 -
The research, development and applications of the deformable models are reviewed. the algorithm is realized to extract brain contour from mri head images. some improvement on deformable models is presented
本文對可變形模型的基本概念和研究進展進行了介紹，給出了其應用於頭部磁共振圖像提取腦區域的演算法實現，並針對我們在實際研究工作中遇到的問題，進行了相應的改進，取得了良好的效果。 -
The improved algorithm for the extraction of contour lines from grid dem
從規則高程格網中提取等高線的優化演算法研究 -
By computing the between two resolution units, we can estimate terrain azimuthal slopes and derive estimate of terrain elevation. the terrain contour is determined uniquely by ay / from azimuth slop on range gates. american began to study p - sar three - dimensional images technology in 1990s
Schuler已經證明，對於一個均勻分佈場景， sar圖像上兩個相鄰分辨單元的極化橢圓方向角偏移量，與地形方位向坡度的對應關系是線性唯一的，地形方位向的傾斜度可以通過解唯一地被測定。 -
Firstly, the comparation study between the wedge pressing and the contour forging has shown that the transverse deforming initiated from the surface of the preforms. when the superficies reached the moulding wall, the deforming moved downwards as the high - direction deforming increased, till the moulding chamber was full of stock ; the transverse deforming of the moulding pressing stock initiated from the center of the stock then surned into a drum - type. the distribution of the density and hardness of the high - direction indicated that the wedge pressing acquired a better ability of pressing penetration
首先對比研究了楔形壓制工藝與模壓緻密化工藝，發現楔壓坯料的橫向變形從上表層開始，當上表面與模壁接觸后，隨著高向變形量的增加逐步向下移動，直至坯料充滿模腔;模壓坯料的橫向變形從坯料中間開始，形成鼓形。高向的密度、硬度分佈表明楔壓比模壓具有更好的壓透能力。 -
After the theory of the generalized point photogrammetry is introduced, its applications are presented, including computer of image parameter from vanishing point and modelling by single image, determination of image parameters by matching between vector and image, inspection of sheet - metal part and determination of plane pose by contour line matching
論述了廣義點攝影測量理論，介紹了其應用，包括由滅點計算影像參數及單像建模，由矢量與影像的匹配確定影像的參數，鈑金件的檢測與由輪廓線匹配確定飛機的姿態等。 -
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。 -
Extracting contour from 3d model based on edge classification
基於邊分類的三維模型外輪廓線抽取演算法 -
In this thesis we deal with fire contour by use of noise function or abstracting the contour from real fire series
另一個是直接採用真實火焰序列中提取出來的火焰輪廓線。 -
When deformable models are used to extract brain contour from head mri t2 images, local minimums largely affect the algorithm ' s converging to the global minimum
在提取人頭部磁共振圖像t2加權像的橫斷面的腦輪廓時，因為在圖像內部存在許多的局部極小值，嚴重的影響了演算法向全局極小收斂。 -
As for space mesh surface, the method of getting the contour from space mesh surface is achieved
針對空間網格曲面，提出空間三角網格曲面的邊界提取方法。 -
The proposed algorithm is called agvf snake algorithm. when deformable models are used to extract brain contour from the head mr images, problems associated with initialization and time consuming iteration limit their utility. to overcome these problems, a region based variable expansion force is proposed
對于可變形模型對初始輪廓的依賴較大，外力的作用范圍有限，迭代演算法收斂時間較長等問題，提出了一種新的外力，我們稱之為基於區域的可變膨脹力（ regionbasedvariableexpansionforce ） 。 -
The new ideas of this dissertation mainly lie in two points. based on the research on the traditional edge tracing techniques, this dissertation presents an improved method according to lml rule. at the same time, studying the polygonal approximation methods, this dissertation also presents an improved and based on mergence method to image contour, and implements the transform of the contour from image to graphics preferably
本文的主要創新點在於：在研究傳統輪廓跟蹤技術? ? 「爬蟲」法的基礎上，提出了基於lml規則的改進的輪廓跟蹤方法；同時，研究了多邊形擬合法，提出了基於聚合的改進的多邊形擬合物體圖象輪廓線方法，較好地實現了對邊緣輪廓線的從圖象到圖形的轉換。
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