depth of target meaning in English

目标深度

In order to acquire 3d spatial position and motion parameters of moving target , the limitation of second focus method to get the depth of target is analyzed according to perspective projection model of target centroid . then , the constraint for obtaining 3d position and motion parameters of moving target centroid from monocular image sequence is presented and proved in this paper . with this constraint , a nonlinear extended kalman filter algorithm for estimating 3d spatial position and motion parameters of moving target centroid from monocular image sequence is proposed
进一步，为获取目标的空间位置和运动参数等三维信息，在目标和成像系统都运动的情况下，根据目标质心的透视投影成像模型，首先分析了二次成像法获取目标深度信息的缺陷；然后给出了由单目序列图像获取目标质心的空间位置和运动参数的条件，并提出利用多帧单目序列图像和应用非线性扩展卡尔曼滤波算法来估计目标质心的空间位置和运动参数；最后对提出的估计方法进行了多组仿真验证，证明该方法可行有效。