摘要
目的在舱内环境中实现基于自然特征的增强现实三维(3D)注册技术,提出一种适合舱内环境中的图像自然特征提取方法。方法首先对图像进行边缘处理并进行二值化,计算各边缘的Hu矩,得到边缘特征值,并将其与事先准备好的舱内仪表板图形特征值进行比较判别,最后用一种决策树方法来匹配舱内仪表。结果准确并较为快速地实现舱内图像的特征提取和匹配表明。结论此方法能够满足舱内自然特征3D注册要求,具有良好的应用前景。
Objective To build a three dimensional（3D） registration of augmented reality for spacecraft, a no- vel method of image feature extraction was proposed in this paper. Methods The hinaryzation and morphologi- cal processing were performed for the images and the Hu moments of the subarea＇ s boundaries were calculated and compared with the prepared moments of the features by the weighted distance. In the end, the image fea tures were matched by the decision-making tree. Results Preliminary results showed that this method could ac curately and quickly match the image feature of inner spacecraft. Conclusion The method could meet the na ture feature of inner spacecraft＇ s three dimensional registration technical requirements and has a promising ap plication perspective.
出处
《航天医学与医学工程》
CAS
CSCD
北大核心
2013年第2期115-119,共5页
Space Medicine & Medical Engineering
基金
中国航天医学工程预先研究项目(2010SY5413004)
关键词
增强现实
3D注册
自然特征
图像特征提取
augmented reality
three dimensional registration
nature teature
image teature extraction
