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| 图像分辨率对天然纤维识别的影响 | |
| 引用本文： | 姚明,曾培峰,禹素萍,吴雄英. 图像分辨率对天然纤维识别的影响[J]. 东华大学学报(自然科学版), 2007, 33(1): 101-107 |
| 作者姓名： | 姚明 曾培峰 禹素萍 吴雄英 |
| 作者单位： | 1. 东华大学,信息科学与技术学院,上海,201620 2. 东华大学,计算机科学与技术学院,上海,201620 3. 上海出入境检验检疫局,上海,200135 |
| 基金项目： | 教育部全国优秀博士学位论文作者专项基金;教育部留学回国人员科研启动基金 |
| 摘 要： | 针对低分辨率图像的保真问题,提出基于轮廓曲线的邻域方向差分链码,进行曲线失真程度的分析.该方法将基于像素坐标的二维轮廓曲线转化成相对于曲线走向而变化角度函数.差分链码具有平移、拉伸和旋转不变性.根据差分链码提出分别针对于对象轮廓周长、轮廓包围面积和轮廓曲线相似性的误差统计模型,并将该模型应用于棉麻等纤维截面的显微图像在不同分辨率下外形的失真度分析,给出在图像采集时允许的最低图像分辨率的计算. |
| 关 键 词： | 样条插值 边沿检测 曲线编码 链码 相关系数 误差分析 |
| 文章编号： | 1671-0444(2007)01-0101-07 |
| 修稿时间： | 2005-07-27 |
Image Resolution Influence on Nature Fiber Recognition |
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| YAO Ming,ZENG Pei-feng,YU Su-ping,WU Xiong-ying. Image Resolution Influence on Nature Fiber Recognition[J]. Journal of Donghua University, 2007, 33(1): 101-107 | |
| Authors: | YAO Ming ZENG Pei-feng YU Su-ping WU Xiong-ying |
| Abstract: | A novel approach, the differential neighborhood chain, is presented for evaluating the distortion of the outline of the nature fiber in the low resolution image. The 2-D edge curve is represented by a function that describes the curve direction with the curve length. The representation has three characteristics: i.e., rotation invariant, scaling invariant, and translation invariant. With the differential neighborhood chain, the circumference error, the area error, and the similarity are proposed. The error models are applied to the natural fibers and the error is studied. The minimum image resolution calculation for the natural fiber is discussed. |
| Keywords: | spline interpolation edge detection curve encoding chain code correlation error analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |