cross ratio中文是什么意思

發(fā)音:

中文翻譯
造句

交比，非調和比，重比。

cross n. 克羅斯〔姓氏〕。
ratio n. (pl. ratios) 1.比，比率，比值；比例 ...
cross-ratio 交叉比例
cross-section ratio 斷面比; 斷面高度比
transducer cross sensitivity ratio 傳感器橫向靈敏度比
cross modality ratio matching method 交叉感覺比率匹配法
be cross with 對生氣
cross at 在過
cross the 十字架
cross with, be 不高興
on the cross 對角, 不老實, 不光明正大地
as ratio 聯想感覺比
ratio n. (pl. ratios) 1.比，比率，比值；比例；系數。 2.【經濟學】復本位制中金銀的法定比價。 the ratio 3:2 (讀作 the ratio of three to two )3對2之比。 arithmetical ratio 公差，算術比。 direct ratio 正比。 inverse [reciprocal] ratio反比。 current ratio 電流比，電流變換系數。 nutritive ratio 營養(yǎng)率。 vt. 1.用比例方式表達；求出…的比值；使…成比例。 2.將(相片)按比例放大或縮小。
ratio t 統計系數與標準誤差比率
t ratio 統計系數與標準誤差比率
cross-cross 交叉地
christopher cross christopher cross 年度最佳專輯
cross cross-ambiguity function 交叉混浠函數
cross transmission; cross-infection 感染
cross-linkage; cross link 交鍵
cross-linked; cross-linking 交聯
xc cross country cross 是十字狀的
contact ratio and overlap ratio 齒輪重合度; 重合度
draw ratio, extension ratio 拉伸比

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例句與用法

The cross ratio he called anharmonic ratio .
他把交比叫作非調和比。
Desargues proved that the cross ratio is the same for every section of the projection .
Desargues證明了投射線的每個截線上的交比都相等。
Desargues proved that the cross ratio is the same for every section of the projection
Desargues證明了投射線的每個截線上的交比都相等。
A camera calibration method with co - line points is proposed , in which distortion center is located according to cross ratio invariability , and then distortion coefficients are calculated based on a line ' s central projection is a line
摘要提出一種用共線點列標定攝像機鏡頭畸變參數的方法，先根據交叉比不變性確定畸變中心，再利用直線的中心投影仍為直線這一性質確定畸變系數。
On the stage of describing the shape of airplane and extracting feature , we derive five - coplanar - point invariant from the basic projective invariant - cross ratio , and resolve the problem of stabilization of five - coplanar - point when there is three points are nearly collinear
在對飛機外型提取特征進行描述的階段，首先從基本的射影不變量交比不變量出發(fā)，推導出了平面五點不量，并解決了當有三點接近共線時不變量不穩(wěn)定的問題。
In the self - calibration scheme , the thesis emphasizes the accuracy of camera intrinsic and extrinsic parameters . we presents an accurate f method based on corresponding point adjustment . the method adjusts coresponding points according to the fixedness of projective transformed cross ratio , then calculates f matrix accurately through linear and non - linear methods . when computing intrinsic parameter , a matrix , we simplify the step , and stress on the two important parameters of a . the result will be getten through solving kruppa equation based on svd decomposition . in order to compute extrinsic parameters , we use linear method to get initial r and t , then apply non - linear method to accurate them
提出了基于匹配點調整的f求精方法，先根據攝影交比不見性對手工選擇的匹配點進行調整，再用線性、非線性結合的方法求精f矩陣；在計算內部參數a中，進行了一定的簡化，把重心放在a中重要的兩個參數上，用svd分解法計算kruppa方程；在計算外部參數時，首先用線性法求解r 、 t ，然后再用非線性法迭代求精。
Based on projective geometry , the research works about 3d invariance ' s extraction and application have been done in this thesis as following : ( 1 ) the basic theories and concepts in projective geometry are systematically summarized . it includes : the camera models of perspective imaging , projective collineation , cross ratio , a simple compare about invariance ( invariant ) among some geometry transformations , fundamental matrix , epipolar and epipolar line in epipolar geometry , and so on . ( 2 ) the calculation methods for 2d projective transformation are extended from points to multi - element , which includes points , lines , points lines and so on , to get the relationship between two projective planes
基于射影幾何理論，論文圍繞3d不變特征的提取和應用進行了如下的研究工作： ( 1 )系統總結了射影幾何中的若干基礎概念，包括：透視成像的相機模型、射影對應、交比不變量、基于不同幾何變換下的不變量的簡單對比、對極幾何中的基礎矩陣、對極點、對極線等。