摘要：目的 提出一种肝癌超声图像分形维数纹理识别的方法。方法 首先将肝脏超声图像像素点看作三维空间的一个点，则图像就是一个表面，然后计算图像的分形维数。应用此法计算了4例肝癌肝脏的超声图像及5例正常肝脏图像的分形维数值，并进行对比分析。结果 正常肝脏分形维数值较小，肝癌肝脏分形维数值较大。分形维数可以很好地定量化表征正常肝脏与肝癌肝脏。结论 肝癌超声图像分形维数计算程序，为医师临床辅助诊断肝癌提供了量化依据。

    关键词：超声图像；纹理特征；分形維数；投影覆盖法

    Abstract：Objective To put forward a method of ultrasonic images fractal dimension texture recognition.Methods Firstly，a point of liver ultrasound image pixels as three-dimensional space，the image is a surface，and then calculate the fractal dimension of the image.The application of this method to calculate the fractal dimension of ultrasound images of 4 cases of liver cancer and 5 cases of normal liver image values were compared and analyzed. Results The fractal dimension of normal liver is smaller ......