space variance 中文意思是什麼

space variance 解釋
空間可變性
  • space : n 1 空間；太空。2 空隙，空地；場地；（火車輪船飛機中的）座位；餘地；篇幅。3 空白；間隔；距離。4 ...
  • variance : n. 1. 變化，變動，變更；變度，變量；【統計】（平）方（偏）差。2. （意見等的）相異；不和，沖突，爭論。3. 【法律】訴狀和供詞的不符。
  1. In the research of value domain segmentation of images, a modified variance algorithm, a subtraction segmentation algorithm and an improved pulse coupled neural networks segmentation algorithm are proposed. in order to successfully implement the space domain segmentation, this paper also develops an algorithm that can distinguish connexity between pixels and extract the feature parameters in one image scanning procedure

    在圖像值域分割研究中，根據炸彈在雙能量x光圖像中的特性，提出了三種分割演算法：一種修正的最小類內方差分割演算法，一種雙能量x光圖像差減分割演算法，和一種改進的脈沖耦合神經網路圖像分割演算法。
  2. The differences on resolution capability and the performance of estimation between beam - space processing and element - space processing are analyzed. transforming matrices are designed for the consideration of depressing the resolution threshold and estimation variance

    分析比較了波束域處理與陣元域處理的分辨能力以及估計性能，並從降低分辨門限和估計方差角度考慮，給出了轉換矩陣的構造方法。
  3. Space - irradiation technique induced variance in rice and its utilization

    空間技術誘發的水稻變異及育種價值
  4. In the plate region of a vehicle image, the gray value varies frequently in cross - direction, so we define a parameter ". cross variance " to describe it. we also calculate other parameters to approximately locate the plate, they are the space length between two chars, the thickness of stroke, the peak and trough of gray value, the ratio of width and length, etc. at last, we exactly locate the plate by the theory of mathematical morphology

    該方法根據圖像車牌區域橫向灰度值變化頻率比較大這一特徵提出了橫向方差參數，並結合車牌的字元間距、筆劃粗細、灰度峰谷值、長寬比值等特徵粗定位車牌，在車牌的精確定位中利用了數學形態學的方法。我們從某高速公路收費站實地拍攝的照片中選取了1000多幅作為實驗樣本數據。
  5. This paper has studied the mean attenuation, scattering, and back scattering cross sections of groups of small rotating spheroids about characteristics of microwave scattering when their rotatory axes are oriented at random in any direction in 2d plane and 3d space respectively under the condition of normal distribution, and that those physical quantities are changed with different variance, expectation and wave lengths of incident electromagnetic wave

    本文研究旋轉軸方向分別在平面內和空間中隨機取向呈正態分佈時的小旋轉橢球粒子群的平均衰減截面、平均散射截面、平均後向散射截面等微波散射特徵，以及這些物理量隨軸向分佈期望、方差及入射電磁波波長的變化。
  6. By simulating mathematically on frequency and on space, we can find the average speed of space field and the average speed of frequency field that is weighted by amplitude, and analyse their relation, and analyse the meaning of space speed variance x and frequency speed variance v. in the fourth part, how to ensure the height of cloud is introduced, and basing on the theory of wind field continuity, the height updating quality controlling is introduced. in the fifth part, the system of cloud wind is introduced, we tracked cloud - motion of consecutive satellite images with one - minute interval by the 1 - d fourier analysis technique and the two - dim fourier analysis technique and the fft analysis technique, and dispose them with quality controlling. in the sixth part, we summarized our research and put up with shortages of this article

    模擬模塊內各點的速度線性變化時，得到空間域平均速度以及頻率域以振幅為權重的平均速度，分析了空間域平均速度和頻率域以振幅為權重的平均速度的關系，並揭示空間域的平均速度的標準差_ x和頻率域的振幅為權重的平均速度的標準差_ v的意義，以及它們之間的關系；第四章介紹了雲跡風系統的高度指定以及風矢高度的劃分，並根據風場連續性原理，介紹了高度調整法的質量控制；第五章介紹導風系統的流程，選擇了三個時刻的ir雲圖，分別用一維傅立葉相位法、二維傅立葉相位法和快速傅立葉演算法計算一個風場個例，並對所得風場進行質量控制，並給出風場圖；第六章進行研究總結，指出不足和有待于進一步研究之處。
  7. Admissibility of nonnegative quadratic estimators for error variance with respect to restricted ellipsoidal parameter space

    橢球約束下誤差方差非負二次估計的可容許性
  8. Along with science and technique development and the variance of battle mode, the cruise missile again mounted on the stage of hi - tech local war from the 1990s, and fully exhibited the breakthrough capability of precisely beating from far distance in the low space, and then played an important role in the real war

    摘要受到科學技術發展的推動和戰爭形態變遷的牽引， 20世紀90年代以後，巡航導彈再度登上高技術局部戰爭的舞臺，充分展示了強大的低空突防和遠距離精確打擊能力，實戰中發揮了巨大作用。
  9. Through reviewing the procession of the physical space in jingan district, investigating the several important phase of macro historical development, the article tries to resolve the out change features and interior rule about the development and variance of residential space in the urban central district with the viewpoint of system background, motivity factors, main action body, space token and so on

    該文通過回顧上海市靜安區的物質空間發展過程，考察居住空間的幾個重要宏觀歷史發展階段，試圖從城市住區發展與變遷的制度背景、動力因素、行動主體、空間表徵等角度出發，解析城市中心區居住空間發展、變遷的外在變化特徵與內在規律。
  10. In chapter five, the minimum variance blind space - time multiuser detection is studied in multipath channels

    第五章研究了多徑條件下的最小方差盲空時多用戶檢測。
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