scattered data point 中文意思是什麼

scattered data point 解釋
分散數據點
  • scattered : adj. 1. （人家等）疏疏落落的；分散的，散亂的。2. （思想等）不集中的，散漫的。3. 【植物；植物學】星散的，參差的，散生的。4. 【物理學】（光）散射的。
  • data : n 1 資料，材料〈此詞系 datum 的復數。但 datum 罕用，一般即以 data 作為集合詞，在口語中往往用單數...
  • point : n 1 尖頭，尖端；尖頭器具；〈美國〉筆尖；接種針，雕刻針，編織針；小岬，小地角；【拳擊】下巴。2 【...
  1. In this modality, line - scan is adopted instead of point - by - point - scan, and the count of scattered photons is obtained by parseing line - scanning energy spectral data

    該方法採用逐行掃描代替逐點掃描，對行掃描的能譜進行解析以獲得散射光子的計數。
  2. Moreover, taking the fatlute model of the covering parts of motorcycle for an example, it discussed the measurement plan method of prototype and the process of data handling. 2. pretreatment of points cloud according to the characteristic of scattered point cloud data, the issue elaborated in detail points cloud registration, which was based on the shape characteristic matching

    論文運用一級模糊綜合評判方法研究了復雜曲面產品的數字化策略，並以摩托車覆蓋件油泥模型為例，討論了樣件的測量規劃方法和數據的處理流程； 2 、點雲數據的規范處理針對散亂點雲數據的特點，詳細闡述了基於形狀特徵匹配的點雲對正方法。
  3. After the orderly reduction methods of massive scattered data being studied, this paper proposes a partial tangent plane slicing method and a virtual second - scan line method after giving a new k - nearest algorithm to re - organize the massive data. the new proposed methods of data reduction and grey theory based unusual noisy data process can be used to generate the scan line type data and it can be directly used to reconstruct curves and surfaces. the research lays a good foundation for reconstructing the cad model in a point - line - surface manner

    4 .深入研究了海量散亂數據的有序簡化技術，在提出建立海量數據點鄰接關系k -鄰近新的演算法基礎上，提出了局部切平面切片法和虛擬二次掃描線法，實現了海量數據的有序重組，通過基於灰理論的數據簡化和異常點處理新方法，生成可用於直接重構曲線曲面的掃描線類型數據，為以點?線?面方式重構cad模型打下了良好的基礎。
  4. Algorithms of curvature estimation and data simplification of scattered point cloud data are studied. local surface curvature properties on scattered - point data are estimated using a parametric quadric surface approximation, and the key step is local base surface parameteration method which resolves parameteration of scattered - point data. an algorithm is presented for simplifying the scattered point cloud data based on curvature restriction

    實例表明，本文演算法的簡化結果既較好地保留了形狀特徵，同時使點的分佈以點雲密集的強制保留區為中心，在向附近擴散的過程中逐漸變稀，避免簡化后點雲的局部過密或局部過稀的情況。
  5. We compare the b - spline curve interpolation and b - spline surface interpolation, analyze the fault of the b - spline curve interpolation and point out that we should use b - spline surface interpolation instead of b - spline curve to keep the continuity of the data result. also, we introduce the way to get control point from value point. then we propose the multi - step fitting of the dense and scattered data to construct b - spline surface, this algorithm perfectly resolve the obstacle of denseness and scattering of the contour line data

    第三章介紹了b樣條插值原理，論述了用b樣條曲面代替b樣條曲線對等高線進行插值，解決了線插值的不連續問題；並在b樣條曲面中運用了密集散亂數據點多步擬合演算法，解決了對等高線進行b樣條曲面插值中數據點散亂冗餘的問題。
  6. So, the research of cad model reconstruction from scattered point cloud should be carried out urgently. the main key techniques contents of surfaces reconstruction from scattered point cloud data include data pre - processing, such as denoising data 、 filling holes and simplifying data, segmenting data, producing quadrilateral domains, and fitting b - spline surfaces

    本文直接以測量獲得的散亂點雲數據為對象，研究了點雲數據的幾何特性計算、平滑處理、孔洞修補、數據簡化等，在此基礎上，進一步研究了點雲數據分塊、四邊界區域劃分及曲面擬合。
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