MRI脑梗图像的小波重构和增强分析

目的：改善医学图像质量,便于临床诊断。方法：利用4层多尺度二维小波分析法对MRI脑梗图像进行分解和重建,通过改变多种增强系数观察病变部位。结果：重建图像较原图像清晰,通过改变细节参数增强图像可以对任何部位进行增强,分析发现患者横断面图左右纹理差别较大,脑梗病变部位清楚。结论：使用二维小波分析法处理医学图像简便快捷,能够很好地改善图像的视觉效果,帮助临床诊断。

Wavelet Reconstruction and Enhancement Analysis of Cerebral Infarction MRI Images

Objective To improve the quality of medical image and make diagnosis more convenient.Methods Four-layer multi-scale two-dimensional wavelet analysis were used to decompose and reconstruct MRI infarction images and the coefficience of image enhancement was changed to observe lesions.Results The reconstructed image was more clear than the original image,and any part of the image could be enhanced by using different coefficience.The texture map of patient＇s brain cross-section was quite different on the left and right,Site of cerebral infarction was clear.Conclusion The two-dimensional wavelet analysis of medical images can simplify the program work and improve the visual effects and be helpful to diagnosis.