Compared with the manually traced boundary, except for the failure in one image pair, the mean error radial length rate of star algorithm detected boundary was 21.80%.
结果有一组勾画失败,在其余的五组图像中星形算法与手工勾画的心内膜相比,其勾画边界的平均半径误差率为21.80%。
Based on some traditional algorithms, this thesis provides a weighted star cluster algorithm to learn user profile.
对已有算法进行改进,提出了一种加权的星型聚类算法以学习用户的兴趣特征。
A fast star tracking algorithm is proposed.
提出了一种快速星跟踪算法。
A fast star tracking algorithm was proposed.
提出了一种快速星跟踪算法。
In the end, the RSFPA algorithm is validated by using star spectrum data as experiment data.
最后,利用恒星光谱作为数据集,实验验证了RSFPA算法的正确性和有效性。
Grid algorithm is a preferable star field identification algorithm. But it need many stars in FOV (field of view). Thereby CCD star tracker must have large FOV or be sensitive to dim stars.
栅格算法是一种较优秀的星图识别算法,但它要求视场中有较多的恒星,从而要求星跟踪器有大的视场或高的星等灵敏度。
Based on the vector technique, an improved approach to star extraction from star image is proposed, which comprised of the improved SUSAN algorithm and the limited pixel labeling technique.
在矢量法基础上,将改进SUSAN算法和限制条件下扩展像素标记法相结合,提出一种改进的星图中星提取方法。
Multiple Sequence alignment (MSA) is a typical NP-Complete problem. Star alignment is an effective algorithm for MSA.
多序列比对(msa)是一个典型的NP完全问题,星比对是一种有效的多序列比对算法。
The volume of the navigation star database is large when star map recognition is carried out by KMP algorithm.
用KMP算法进行星图识别时,制定的导航星库容量大。
Firstly, the article briefly stated the need to study star pattern recognition algorithm, and some kinds of star pattern recognition algorithms in existence were introduced.
首先简述了研究星模式识别算法的必要性和现有的星模式识别算法。
A new star pattern recognition algorithm without any apriori attitude knowledge is described.
讨论了一种新的无须任何先验知识的星图识别算法。
A filtering algorithm for high precision attitude determination of a specific satellite is presented based on star-sensors and fiber optic gyroscopes (FOG).
为了达到卫星三轴姿态确定的精度要求,以某一对地定向的小卫星为研究对象,提出了基于滤波算法的星敏感器和光纤陀螺组合定姿的方案。
Construct maximum connection match tree identification algorithm with respect to the characters of observed star map and guide stars -star diagonal distance and connection.
根据观测星图和导航星所具有的特性- - -星对角距和连通性,构造了最大连通匹配树识别算法。
Finally, numeral simulation shows that the star pattern identification algorithm based on the convex polygon has high robustness and the ratio of identification is above 99%.
仿真结果表明:在任意视场中,基于凸多边形的星图识别成功率高于99%,并具有较强的鲁棒性。
Because of high spaceflight laboratory fees, it is impractical to take star-pictures real time in order to debug star sensor and test the algorithm of star map identification.
由于航天实验费用大,为测试星敏感器性能和星图识别算法,需在地面构建天文导航半物理仿真试验平台。
A new algorithm of calculating the apparent place of fixed star.
一种求恒星视位置的新算法。
A novel geometric structure-based autonomous star pattern identification algorithm is presented.
提出了一种新的以星三角形为基本识别单元的几何结构星图识别算法。
Real-time star position locating is implemented with Field Programmable Gate Array(FPGA) in the star tracking algorithm.
新的跟踪方法采用现场可编程门阵列(FPGA)实现了实时的星点定位;
As a spacecraft attitude measurement instrument, CCD star tracker has a lot of advantages. But it needs an all-sky autonomous star map identification algorithm to support its operation.
CCD星跟踪器作为飞行器的姿态测量仪器有许多优点,它必须有一种全天自主星图识别算法来支持其工作。
As a spacecraft attitude measurement instrument, CCD star tracker has a lot of advantages. But it needs an all-sky autonomous star map identification algorithm to support its operation.
CCD星跟踪器作为飞行器的姿态测量仪器有许多优点,它必须有一种全天自主星图识别算法来支持其工作。
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