absolute conic 中文意思是什麼
absolute conic
解釋
絕對二次曲線-
Expatiate the substance of projective reconstruction is solving fundamental matrix, substance of affine reconstruction is solving infinite homography or infinite plane and substance of metric reconstruction is solving absolute conic images
闡述了射影重構的實質是求解基本矩陣，仿射重構的實質是求解無窮遠平面或無窮遠平面單應，歐氏重構的實質是求解絕對二次曲線的像。 -
In the first part, depending on three or more images, the main research work are listed as follows : ( l ) using svd decomposition to realize projective reconstruction ; ( 2 ) realizing camera self - calibration by solving kruppa ' s equation ; ( s ) recovering euclidean reconstruction from projective reconstruction. depending on only two images, the main researches are : ( l ) making out infinite plane homography matrix by using scene structure information, then recovering affine reconstruction from projective reconstruction ; ( 2 ) making out the absolute conic images by using scene structure information, and then recovering euclidean reconstruction from projective reconstruction
在第一部分中，針對三幅及三幅以上的圖像，主要研究：利用矩陣奇異值分解（ svd ）實現射影重構，通過求解kruppa方程實現攝像機自標定，由射影重構恢復歐氏重構；針對只有兩幅圖像的情況，主要研究：利用場景結構信息求解無窮遠平面的單應矩陣，由射影重構恢復仿射重構，利用場景結構信息求解絕對二次曲線的像（等價于標定攝像機） ，由仿射重構恢復歐氏重構。 -
In 3d space, points on the infinite plane compose the absolute conic, and it contains the interior parameter information of camera. we use photography geometry character of circular point on the absolute conic to calculate camera interior parameter, exterior parameter can be obtained. we can obtain more accurate
在三維攝影空間中，無窮遠平面上的點構成了絕對二次曲線，由於二次曲線的像包含了攝像機的內部參數信息，我們利用了圓環點的像在二次曲線上的攝影幾何特性，從而確定攝像機的內部參數，進而求取攝像機運動的外部參數。 -
We systemically discuss how to uniquely decide an infinite plane homography matrix by using the structure information in scene and how to evaluate a homography matrix which convert affine reconstruction to euclidean reconstruction by solving absolute conic images. we give three constraints of absolute conic images and use these constraints to evaluate absolute conic images and then to rec
系統地討論了如何利用場景中的結構信息，來唯一地確定無窮遠平面的單應矩陣，進而由射影重構恢復仿射重構，以及如何通過絕對二次曲線的像求解將仿射重構變換為歐氏重構的單應矩陣。 -
In the solving of absolute conic images, a novel circular point based method is used. the experiments show that the algorithm is feasible
其中在絕對二次曲線的像的求解中研究了一種使用虛圓點的方法，實驗結果表明該演算法是行之有效的。 -
The algorithm of camera ' s self - calibration is always a important research domain. in this paper by taking advantage of parallel lines and orthogonal lines in architecture as usual, we can calculate the absolute conic image and vanishing points
攝像機自標定的線性演算法一直是計算機視覺領域的研究熱點，本文利用場景中的兩兩正交三條直線，計算直線的消失點，進而線性計算絕對二次曲線的像。 -
By taking advantage of parallel lines and orthogonal lines in architecture, the camera internal parameters, rotation and translation can be recovered from a set of un - calibrated images via computing absolute conic and vanishing points. the euclidean 3d model of architecture ( up to a scale factor ) can be recovered too
利用建築物中常見的平行直線和正交直線等特點，通過絕對二次曲線和消影點等射影幾何量的計算，可以從圖象中恢復攝像機的內參數、旋轉和平移位置，同時恢復建築物的三維歐氏幾何模型（相差一個尺度因子） 。 -
The essence of affine reconstruction is to compute the infinite homographyo the key to metric reconstruction is identification of the absolute conic image, in the end we give a experiment
最後實驗分別給出了仿射重構的結果和歐氏重構的結果。實驗表明我們的演算法是有效的和可行的。
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