Non-rigid point set registration method based on enhanced affine transformation
An affine transformation and enhanced technology, which is applied in the field of image processing, can solve problems such as the inability to obtain optimal registration effects, and achieve the effects of overcoming local convergence, reducing complexity, and avoiding the interference of local minimum values
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[0031] combine figure 1 Describe this embodiment, the non-rigid point set registration method based on enhanced affine transformation described in this embodiment, the specific steps of this method are:
[0032] Step 1. Two-dimensional coordinate sets for two point sets to be registered and (u m ,v n ∈ 2 ), where U is the data point set, V is the template point set, and calculate the normalized feature gap w between each point in U and each point in V mn ;
[0033] Step two, to As the initial value, use the quasi-Newton method to optimize the coarse registration objective function, and solve the global non-rigid transformation coefficient that makes the objective function converge to the minimum value;
[0034] Step 3. According to the global non-rigid transformation coefficient matrix and the global non-rigid transformation model, calculate the transformation result of the coarse registration of the point set U;
[0035] Step 4, using the result of the rough regist...
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