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使用矩形点得到单应矩阵

于 2022-04-22 发布 文件大小:1.53 kB
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应用背景在世界坐标系中已知的矩形点,在摄像机图像中出现,得到了变换和逆变换。视觉工作室2010。m_homography相化学图谱学;的…m_homography。设定值(m_ptregion,350,600);…图片上的双= 100;双五= 200,/ /或点对图像双×,,,和,/ / / /,世界坐标;m_homography。cam2world(U,V,X,Y);…双U1,V1;m_homography。world2cam(x,y,U1,V1);关键技术四点在世界坐标如下:(0,0),(一,0),(A,B),(0,B)四点在摄像机坐标如下:(u0,v0),(U1,V1),(U2,V2),(U3,V3)然后,得到的变换矩阵是简单的。W = HX,W =(U,V,1)T,X =(x,y,1)Tx = w-1w ; ; ; ;  H1 H2 H3; ;H =  ;H4 H5  ; ;H6 ; ; ; ;H7 H8  ; ;H9h2y + H3 = H1X + U(h7x + h8y + H9)h4x + h5y + H6 = V(h7x + h8y + H9)

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