| 基于分形参数的B超图像纹理分析 |
| |
| 引用本文： | 曹庆年,杜慧洁,卞正中.基于分形参数的B超图像纹理分析[J].西安交通大学学报,1999,33(1):26-29. |
| |
| 作者姓名： | 曹庆年 杜慧洁 卞正中 |
| |
| 作者单位： | 西安交通大学,710049,西安 |
| |
| 摘 要： | 利用离散分形布朗随机场模型对Ｂ超图像的分布特征进行顾分析和讨论。鉴于一般的图像不是完全的分形体，文中给出了计算分维数的尺度范围公式，根据上述模型和尺度范围公式，对正常肝脏和有癌变肝脏的两组Ｂ超图像的分维数进行了计算，结果表明在未考虑尺度范围时两组图像的分维数差别不大；而考虑了尺度范围时两幅图像的分维数就有明显的差别，即正常肝脏图像的分维数大于有癌变肝脏图像的分维数。
|
| 关 键 词： | 分形维数 纹理分析 B超图像 超声波诊断 |
| 修稿时间： | 1998-01-06 |
Texture Analyses of B Scan Image Based on Fractral Dimension |
| |
| Cao Qingnain,Du Huijie,Bian Zhengzhong.Texture Analyses of B Scan Image Based on Fractral Dimension[J].Journal of Xi'an Jiaotong University,1999,33(1):26-29. |
| |
| Authors: | Cao Qingnain Du Huijie Bian Zhengzhong |
| |
| Abstract: | The fractal feature of the B scan images is analyzed and discussed using the discrete fractional Brownian random field (DFBRF) model. Since a general image is not a complete fractal object, a scale range formula is used to calculate fractal dimension. According to the DFBRF model, the fractal dimensions of two groups of B scan images are computed. When a scale range is considered, fractal dimensions of two groups of B scan images show an appreciable difference. That is, the fractal dimension of an image for a normal liver is higher than that of a liver cancer. If the scale range is not taken into consideration the difference is small. |
| |
| Keywords: | fractal fractal dimension range scale discrete fractional Brownian random field |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
