ID |
原文 |
译文 |
57948 |
利用形态学开运算消除目标区域的噪声,进而分离相连的目标区域;对目标区域进行边缘检测,计算完整的工件轮廓信息,然后根据外轮廓的面积确定工件区域;利用工件区域的最小外接矩形在图像中标出前景和背景区域,再利用 GrabCut 算法分别对前景和背景建立高斯混合模型,然后通过 mincut /maxflow 算法分割前景与背景区域,最终实现工件目标的提取. |
firstly,the image is segmented by use of MeanShift algorithm to extract the target region; secondly,the noise in the target region is eliminated using morphological open operation,and then the connected target region can be separated; thirdly,the edge detection ofthe target region is carried out to calculate the complete workpiece contour information,and then theworkpiece region is determined according to the size of the outer contour area; fourthly,the foregroundand background regions are labeled by using the minimal contour rectangle of the workpiece area and the Gaussian mixture model is established using GrabCut algorithm for foreground and background respectively,then the foreground and background regions can be segmented by use of mincut /maxflow algorithm,and finally the workpiece object can be extracted. |
57949 |
实验结果表明,对于制造商提供的样本,该方法分割工件的召回率和准确率分别为 94. |
The experimental results show that,for the samplesprovided by the manufacturer,the recall and accuracy of the proposed method are 94. |
57950 |
97% 和 88. |
97% and 88. |
57951 |
48% ,具有较强的实用性和良好的实时性 |
48%respectively,and the method has strong practicability and good real-time performance. |
57952 |
针对火星车在火星行驶过程中存在的能量消耗过多等问题,提出了一种基于能量约束的路径规划算法. |
Aiming at the excessive energy consumption of Mars rover on Mars,a path planning algorithmbased on energy constraints is proposed. |
57953 |
首 先,考虑火星车克服重力做功以及驱动机构内部损耗等因素,推导出火星车的运动能量消耗函数,并求解其最小值,构建能量带权图; |
Firstly,considering overcoming gravity work and internal loss ofdriving mechanism,the motion energy consumption function of Mars rover is deduced,and its minimumvalue is solved. |
57954 |
然后通过迪杰斯特拉算法,计算得到火星车能量带权图的能量消耗最小路径,并使用五次多项式插值拟合的方法实现火星车的行驶轨迹规划; |
Therefore,the energy weighted map is constructed. Then,the energy consumption minimal path of the energy weighted graph is calculated by Dijkstra algorithm and using quintic polynomial interpolation to realize trajectory planning. |
57955 |
最后,采用 Adams 软件建立火星典型地形和火星车动力学模型,采用 Matlab/ Simulink 软件搭建火星车控制器模型,对火星车在典型地形中的行驶过程进行动力学与控制联合仿真实验,验证了所提路径规划算法的效果. |
Finally,Adams is used to establish the typical terrain of Marsand dynamics model of Mars rover,and Matlab / Simulink is used to build the controller model of Marsrover. The dynamics and control simulation of Mars rover in typical environment is used to verify the effectiveness of the path planning algorithm. |
57956 |
结果表明,相对于传统的避障路径规划算法,所提算法使火星车能量消耗减少了 15% 以上,可有效提高火星车的能量利用效率. |
The results show that compared with the traditional avoidancealgorithm,the energy consumption of Mars rover is reduced by more than 15% using the proposed pathplanning algorithm,which can effectively improve the energy utilization efficiency of Mars rover. |
57957 |
针对车载网匿名认证的安全与效率问题,运用双线性对理论,提出一个基于身份的车载网批量匿名认证方案. |
For the security and efficiency of anonymous authentication in vehicular networks,an identitybased anonymous authentication scheme for vehicular networks is proposed by using bilinear pairing theory. |