circumscribed circle 中文意思是什麼
circumscribed circle
解釋
外接圓- circumscribed : 界限清楚
- circle : n 1 圓；圓周；圈；環；環狀物。2 圓形場地，馬戲場；（鐵路的）環行交叉口；（體育場的）圓形看臺；（...
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In other words, each circle has two circumscribed circles
換句話說，每個圓有兩個外接圓。 -
Some extreme value problems for inscribed and circumscribed triangles in a circle
圓內接與外切三角形中的某些極值問題 -
In this paper, it is proved that, given 3 control points a, b and c, if the camera s optical center o lies on one of the three planes perpendicular to the plane abc and going through one of the three altitudes of the triangle abc, and additionally its projection on the plane abc is within the circumscribed circle of the triangle, that is, o is within the so - called danger cylinder, then the corresponding p3p problem - o, abc - must have 4 positive solutions
Pnp perspective - n - point問題是計算機視覺攝影測量學乃至數學中經典而重要的問題之一，所謂pnp問題，就是指如下的物體定位問題：假定攝像機為小孔模型且已標定好，攝取一幅在物體坐標系下坐標已知的n個空間點的圖像，且這n個圖像點的坐標已知，確定這n個空間點在攝像機坐標系下的坐標。 -
Then, the minimum circumscribed circle and shape principal orientation of the object region are calculated ; and the object region is divided into some blocks in the polar coordinate, which uses the center of the minimum circumscribed circle as the origin and the direction of the shape principal orientation as the direction of the polar axis, and the features of all subblocks are extracted to compose shape histograms and then smoothed ; then, combined with global features to synthetically represent the content of the image ; finally, a new image similarity is used to compute the distance between images
首先對商標圖像進行預處理，得到規則二值圖像;計算目標像素的最小外接圓和圖像的形狀主方向;在以最小外接圓圓心為原點、形狀主方向為極軸方向的極坐標中將圖像分塊，提取各子塊特徵，構成形狀直方圖並平滑處理;再結合全局形狀特徵來綜合表示圖像內容;最後採用新的相似性度量方法計算圖像間距離，實現商標圖像的準確檢索。
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