弹道学报2012，Vol.24Issue(1)：107-110,4.
OTSU阈值改进及其在俯仰角测试中的应用
OTSU ＇ s Improved Threshold and its Application on Pitch Angle Test
摘要
Abstract
In order to detect the flight-state image edge of missile and analyze the pitch angle,binary image and contour bougie morphological filtering were adopted to preprocess the image.An improved threshold extraction method was presented according to the 3δ characteristics to binarize image with OSTU.Based on the obtained image edge of flying missile,the real axis-equation of missile in 3-dimension was reconstructed to solve pitch angle by coordinate transformation on the basis of skeleton extraction method.The edge detection and pitch-angle test show that good edges can be achieved from noise image by the detection method.The pitch angle can be solved by the coordinate transformation.关键词
外弹道/边缘检测/俯仰角/形态学滤波/二值化Key words
exterior trajectory/edge detection/pitch angle/morphological filter/binarization分类
军事科技引用本文复制引用
吴祖堂,朱玉荣,黄晓飞..OTSU阈值改进及其在俯仰角测试中的应用[J].弹道学报,2012,24(1):107-110,4.
