高效特定图像阈值自动分割方法仿真  

Efficient Partitioning Algorithm for Specific Image Threshold Automatic Segmentation

作　　者：海洁[1] 董素鸽[1] HAI Jie, DONG Su - ge(SIAS International University, Zhengzhou University, Xinzheng Henan 451150,China)

机构地区：[1]郑州大学西亚斯国际学院,河南新郑451150

出　　处：《计算机仿真》2018年第10期444-448,共5页Computer Simulation

基　　金：河南省特色专业电子信息工程(教高(2011782);郑州大学西亚斯国际学院信号与信息处理重点学科(院科[2017]1号);河南省高等学校重点科研项目(16A510032)

摘　　要：对高效特定图像进行阈值分割,能够提高图像信息提取的准确性。针对当前高效特定图像阈值分割方法存在的分割精确度低,分割速度慢的问题,提出一种基于矩不变法的高效特定图像阈值自动分割方法,利用小波变换方法,通过对高效特定图像进行连续小波变换,并计算小波系数,确定高效特定图像信号的方差,根据信号方差,实现高效特定图像重构。根据矩不变阈值分割的思想,确定重构后图像的阶矩,并通过二值分割对重构后高效特定图像灰度级进行分割,根据分割前后图像前三阶矩相等理论,确定重构后高效特定图像的最优分割阈值,根据分割阈值,完成高效特定图像阈值自动分割。实验结果表明,所提方法能够有效对图像进行分割,分割精确度较高,且图像分割速度较快。To segment threshold of efficient specific image can improve the accuracy of image information extraction. At present, the threshold segmentation method has the low segmentation precision and speed. Therefore, an automatic segment method for efficient specific image based on moment invariant is proposed. Firstly, the wavelet transform method, the continuous wavelet transform for high - efficiency specific image and the calculation of wavelet coefficient were used to determine the variance of specific image signal. According to the signal variance, reconstruction of efficient specific image could be achieved. Based on the idea of threshold segmentation of moment invariant, the moments of the reconstructed image were determined. Moreover, the grayscale of efficient specific image after reconstruction was segmented by binary segmentation. Finally, the optimal segmentation threshold value of high - efficiency specific image after reconstruction was determined by the theory that the first three moments of image were equal. Thus, the threshold automatic segmentation of high - efficiency specific image was completed based on the segmentation threshold value. Simulation results show that the proposed method can effectively segment the image. Meanwhile, the segmentation accuracy is high and the segmentation speed is fast.

关 键 词：高效特定图像 阈值 自动分割 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]