Short Time Asymptotic Behaviour and Large Deviation for Brownian Motion on Some Affine Nested Fractals Let X be a one-dimensional diffusion process on an interval (a,b) which is determined by its speed measure dm(x) and Feller's boundary condition. Then there exists a heat kernel p t (x,...
A multi-input-multi-output control-affine non-linear state-space model with dim(x) = n and dim(y) = m can be written asx˙=f(x)+g(x)uy=h(x).The system in (14) is said to be locally (weakly) observable at x0 if there exists a neighbourhood X0 of x0 such that for every...
maskc = np.pad(maskc, (600,600),'minimum')# warp is an inverse transform, and so src and dst must be reversed heretform = transform.estimate_transform('affine', desttracker +600, reftracker +600) img_data = skio.imread('data/images_data/'+name+'.jpg')# save org matwarpedxx =...
second_set = np.array([point_set2[sample_index]], dtype = np.float32)#print first_set.shapetransformation = cv2.estimateRigidTransform(first_set, second_set, fullAffine =False)iftransformationisNone:continue#print '***'#print first_set#print second_set#print '***'#transformation[1,2] *...
Let P P be a bounded polyhedron defined as the intersection of the non-negative orthant {\Bbb R}^n_+ {\Bbb R}^n_+ and an affine subspace of codimension m m in {\Bbb R}^n {\Bbb R}^n . We show that a simple and computationally efficient formula approximates the volume of P P...
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In addition to these popular methods, some emerging heuristic methods were also used for PV model parameter identification, such as quasi-affine transformation evolution [28], spotted hyena optimization [29], butterfly optimization algorithm [34] and so on. Besides, the researchers tried to combine...
13.Research on Evaluation of Affine Parameter Estimation Using Image Feature Points基于图像几何特征点的仿射参数估计算法研究 14.Cross-hexagon-diamond motion estimation algorithm based on initial point predictive基于起点预测的十字-六边形-菱形运动估计算法 15.Shape from Shading by Estimating the Local Highest...
defextract_sift(image,lm=None, shape=[200,300], fix_points='outer',ttype='affine'):iflm==None:lm = landmarks(image)ifnp.any(np.isnan(lm)):returnnp.nan*np.ones([out_shape,out_shape,image.shape[2]]).astype(np.float16), np.nan*np.zeros_like(lm) ...
图像几何变换又称为图像空间变换，它将一副图像中的坐标位置映射到另一幅图像中的新坐标位置。我们学习...