invariant curve 中文意思是什麼
invariant curve
解釋
不變曲線-
18 cohen f s, huang z, yang z. invariant matching and identification of curves using b - spline curve representation
第四，利用圖像畸變的拓撲不變性質對特徵匹配剪枝，降低計算代價。 -
We use the poincare - andronov - hopf bifurcation theorem to prove that there is an invariant curve in the center manifold when the coupling coefficient e is small enough
利用poincar - andronov - hopf分支定理證明系統有弱空間耦合時在中心流形上存在不變圈。 -
The numerical simulations demonstrate that there is a quasi - periodic rotation on the invariant curve when the coupling coefficient e is small enough
數值計算表明當空間耦合強度足夠小且限制在某些范圍內時，系統在不變圈上是擬周期運動。 -
Because of phase information ' s stability and significance, this method is fairly robust, that is, it is invariant to illumination, contrast, and rotation. it can detect mirror symmetry, rotating symmetry and curve symmetry simultaneously. and it does n ' t need any preprocessing, such as segmentation
由於相位信息的穩定性和重要性，該方法具有很強的魯棒性，不受圖像亮度、對比度和旋轉的影響；它能同時檢測鏡像對稱性、旋轉對稱性和曲線對稱性，不需要圖像分割等任何預處理。 -
The planar quadratic system with an invariant cubic curve has at most one limit cycle
類方程的極限環存在性的注記 -
2. we introduced a new polygon periodic discrete curvature function based on curve continue curvature concept in 2d contour matching, the periodic discrete curvature has local, rotation and translation invariant. applying efficient techniques to find the proper matching substrings, we also applied the hashing technique to find long matching substrings
周期性離散曲率函數具有和原有曲率相似的位移、旋轉、縮放等特性，為提高匹配的準確度，利用高斯函數進行平滑處理，取得了較好的結果，同時該方法具有直觀、速度快等優點，在2d輪廓曲線的匹配中，具有實用可靠的用途。 -
In this paper the deformation invariant curve matching problem is addressed
圖像畸變下的形狀匹配和識別問題是計算機識別的根本問題之一。 -
Invariant moments are used to describe the surface. the space surface character curve matching method especially the one by contour is presented
對空間曲面的匹配問題提出採用特徵曲線的匹配方法，特別是利用邊界曲線進行曲面匹配。 -
In this paper, we present some of new geometric properties of ribs and fans for a bezier curve including composite fans, rib - invariant deformation, and fan - continuity in subdivision
這種性質給了我們一個理解bezier曲線的延伸框架。從概念上講， bezier曲線是由de casteljau遞歸演算法定義的。
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