摘要
为了研究TATB基高聚物黏结炸药(Polymer Bonded Explosive,PBX)内部颗粒边界分布,需要对PBX炸药通过计算机层析成像技术(Computed Tomography,CT)扫描得到的低质量原始图像进行分析,开发自动化炸药颗粒边界勾勒算法。对原始图像利用灰度统计信息和二值化方法计算得到二值化炸药颗粒草图,提出弹性胶囊算法从二值化草图中识别炸药颗粒的粗略边界,再结合形态学变换和分水岭算法识别出更精确的炸药颗粒单像素边界,最后结合灰度值统计数字特征和弹性胶囊粗略边界图信息调整边界宽度与灰度,得到最终边界勾勒结果。将该基于弹性胶囊和分水岭算法的边界勾勒结果与Canny算法、相位一致性算法、经典分水岭算法流程、基于超像素算法等有代表性的图像分割算法输出进行横向比较,结果表明该边界勾勒过程识别的准确度明显更高,并且通过单幅图像确定的算法参数在同批次样品其他图像中同样具有良好的效果,在满足边界提取精度要求的基础上,无需反复调整参数即可处理批量图像数据,缩减人工的投入,证实了自动化边界勾勒算法的实用价值。
To characterize the structure of TATB⁃based polymer bonded explosives(PBX)on the meso⁃scale,an automatic gran⁃ule boundary extraction method based on the two⁃dimensional(2D)reconstructed CT images with low quality is presented.Bina⁃rization was first performed according to the gray level distribution of the original CT images of TATB⁃based PBX.Then a pro⁃posed elastic capsule algorithm was applied to the binary images and an approximate location of the granule boundary was ob⁃tained.With a combination of morphological operations and the marker⁃based watershed algorithm,a more accurate segmenta⁃tion of TATB⁃based PBX granules was realized.The present granule boundary extraction method for 2D CT images of TATB⁃based PBX shows improved accuracy and portability,as compared to Canny algorithm,iterative phase congruency,SLIC superpixels and other feature extraction techniques.
作者
吴未
陈华
戴斌
张伟斌
骆吉洲
姜守旭
宗和厚
WU Wei;CHEN Hua;DAI Bin;ZHANG Wei-bin;LUO Ji-zhou;JIANG Shou-xu;ZONG He-hou(Institute of Chemical Materials,CAEP,Mianyang 621999,China;School of Computer Science and Technology,Harbin Institute of Technology,Harbin 150001,China)
出处
《含能材料》
EI
CAS
CSCD
北大核心
2021年第1期7-12,I0001,共7页
Chinese Journal of Energetic Materials
基金
国家自然科学基金资助(11572294)。
