摘要
利用2008~2009年冬季在大庆红旗泡水库获取的138幅冰裂缝数码照片进行图像分析。比较了Image-Pro Plus方法和ACD See和Photoshop联合方法在冰裂缝分析中的优缺点。结果表明运用Image-Pro Plus方法可以自动化处理,但该方法在图片裂缝处理的结果很不精确,只能用于粗略估算。ACD See和Photoshop联合方法处理的结果相对于前一种方法精确,但其操作复杂,与前一种方法相比处理速度较慢。此外运用分形理论,对冰面裂缝进行分析处理,得到分形维数在1.2~1.7之间,冰裂缝分形维数和冰裂缝密度之间有很好的相关性;而冰裂缝角度无论是主要裂缝还是次要裂缝,都具有自相似性,表明冰面裂缝的产生机理相同。
The 138digital photos of ice surface cracks from Hongqipao Reservoir in Dalqing,Heilongjiang,China were obtained in the winter of 2008-2009,and these photos were analyzed by using image processing.The advantages and disadvantages of Image-Pro Plus image processing method and ACD See-Photoshop image processing method are compred.Image-Pro Plus method can automatly process the size of cracks,but it is inaccurate,and only uses for an estimation.ACD See-Photoshop processing is more accurate than Image-Pro Plus method.However,its operations are complex,slower than that of Image-Pro Plus.In addition,the fractal dimension between 1.2-1.7 was obtained from the analysis of retriveled information based on the fractal theory,and the fractal dimension is directly proportional to fracture density.The angles between cracks,whether are primary or secondary cracks,has self-similarity that is the evidence of all cracks have the same forming mechanism.
出处
《水利科技与经济》
2010年第11期1311-1313,共3页
Water Conservancy Science and Technology and Economy
基金
国家自然科学基金(50879008)
大连理工大学大学生创新性实验计划(2009145
2008080)
关键词
水库
淡水冰
图象处理
分形理论
Reservoir
Freshwater ice
Image processing
Fractal theory
