基于局部灰度聚類的高斯分布擬合模型
[Abstract]:In order to solve the problem that Gao Si distribution fitting model is sensitive to initial contour, a Gao Si distribution fitting model based on local gray clustering is proposed. According to the characteristics of image local pixel gray clustering, the new model uses the gray level offset field and a piecewise constant function to fit the local gray mean value of the image, and realizes the organic combination of the global and local information of the image. The contour can evolve from any initial position to the edge of the target, and finally converge on the edge. The new model is implemented by a fast and efficient numerical method. The level set function does not have to be reinitialized during the whole evolution process, and the evolution speed of the active contour is improved significantly. Experimental results show that the proposed algorithm can obtain accurate segmentation results under different contour initialization conditions.
【作者單位】: 東北大學(xué)信息科學(xué)與工程學(xué)院;
【基金】:國(guó)家自然科學(xué)基金資助項(xiàng)目(61273078) 中央高;究蒲袠I(yè)務(wù)費(fèi)專項(xiàng)資金資助項(xiàng)目(N140403005)
【分類號(hào)】:TP391.41
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