摘要
利用傅立叶变换图象处理技术来测定阔叶材横切面纤维细胞排列,把表示每一个纤维细胞的半径为10个像素点的圆盘点图,进行傅立叶变换,再做能量光谱图的角度分布图,其最大值表示纤维细胞的排列。通过傅立叶变换图像处理发现垂柳和闽楠的纤维细胞在斜向上的排列分别为110°和125°。木材纤维细胞排列参数为数字化识别木材提供了新依据。
Fourier transformation image-processing technology was applied for determining the cross section fiber cell arrangement in hardwood. In this method, the disc-convoluted dot map from each cell radius with 10 pixels was transformed by Fourier transformation, and generated the angle distribution function in the power spectral pattern. The maximum value reflected the arrangement of the fiber cell. The results of Fourier transformation image-processing technology indicated that the arrangements of the fiber cell of Calix babylonica and Phoebe bournei were 110°and 125° in oblique direction, respectively. This method provides a new basis for the digitized demnification of the timber.
出处
《西北林学院学报》
CSCD
北大核心
2009年第2期121-123,140,共4页
Journal of Northwest Forestry University
基金
国家自然科学基金(30760192)
关键词
傅立叶变换
图像处理
纤维细胞排列
阔叶材
Fourier transform
image-processing
fiber cell arrangements
hardwood
