invariant point 中文意思是什麼
invariant point
解釋
不變點-
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徵進行描述的階段，首先從基本的射影不變量交比不變量出發，推導出了平面五點不量，並解決了當有三點接近共線時不變量不穩定的問題。 -
The tangent of the angle which is correspond with the feature point is the first feature invariant, and the three sides ' ratio of the triangle is the second feature invariant
該方法根據三角不等式原理利用第三邊與另外兩邊之和的比值大小來確定角點，以特徵點和它相鄰的兩個特徵點所形成的兩條直線的夾角正切值以及三角形第三邊與另兩邊和的比值作為特徵不變量。 -
There are charge distribution of the nucleons a which is not a point, thus, in our invariant amplitude the form factor of nucleons a will come spontaneously, the cross section will be much imfluenced by the form factor
由於在反應中原子核a為有大小電荷分佈的粒子而不是點粒子，從而在計算不變振幅過程中會出現形狀因子，這會對所計算的散射截面有很大的影響。 -
The research object here is a high - level film transport system of space camera. main contents are following : design and analyze fixed quantity intermittent film - transport system with tension - control, invariant tension - control system in the point of view of structure ; conduct dynamic property of fixed quantity measuring film roller and deduce the film ' s dynamic property and film tension
本文以某型高級航天相機的輸片系統為研究對象，從結構設計的角度出發探討了帶有張力控制的定量間歇式輸片機構的設計與分析，介紹了定量間歇輸片系統的結構設計及恆定張力控制系統的結構設計。 -
The results extend those of autonomous systems to case for no autonomous systems. 4. the stability and the existence of periodic solutions for ecological systems of reaction - diffusion type are discussed by using of smoller invariant domains principle liapunov functional method comparison principle and fixed point theorem
四、研究了用偏微分? ?積分方程描述的生態系統平衡位置的穩定性、漸近穩定性及周期解的存在性、穩定性，採用smoller不變區域原理、比較原理，不動點原理及liapunov泛函方法。 -
( 3 ) atr is studied in this paper both invariant moments to round degree. and, against the helicopter the result of test is given. the idea of topological is introduced in the fried of atr, the hitting - point choice on the basis of characteristic points is studied and aiming at the tanker a applied algorithm is proposed.
（ 3 ）在模式識別理論的基礎上，探討了圖像識別系統，研究了不變量（不變矩、圓度）在目標識別中的應用，並針對圓度法用於直升機識別給出了應用實例，提出拓撲思想在識別中應用的方案，並針對坦克提出了一種命中點選擇方案和演算法。 -
If the optical system with ccd sensor is regarded as a spatially invariant linear system, the convolution of point spread function and the object image results in error on theory. since ccd sensor imaging is digital imaging, in this article, the image quality and resolution of the ccd sensor imaging is simulated and analyzed
鑒于ccd探測器成像是數字化成像，所以本文採用計算機模擬和ccd相機模擬成像試驗及理論分析的方法對ccd探測器的目標影像的分辨力與ccd像元分辨力的關系及像質進行了研究並獲得如下主要結論。
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