Aimed at the difficulties of extracting the object heights in fringe pattern technology , a new measurement method with ray track was proposed 摘要针对条纹投影技术中提取物体高度比较复杂的问题，提出了一种光线跟踪法测量物体轮廓的新技术。
Aiming to minimize the torque ripple in condition of non - perfect bemf waveform , the dissertation present a optimum current tracking control technique 针对这种反电动势波形偏离理想波形的情况，本文提出了一种最优电流跟踪法来抑制转矩脉动。
The operation platform is windows nt workstation and the development kits are visual c + + and opengl . some examples demonstrate availability of the algorithm . 5 为了进一步验证二分跟踪法的有效性，研究并实现了曲面裁剪、曲面剪切、曲面过渡等曲面造型功能，获得了良好的效果。
Abstract : this paper presents a new primal ? dual interior point algorithm for a convex programming with box constraints , and prove the iteration complexity is polynomial 文摘:本文为框式约束的一类凸规划提出了一个新的内点算法，原始-对偶路径跟踪法，并证明了算法的迭代复杂性为多项式时间性
Firstly , this paper presents an algorithm based on ridge following to extract all minutiae from the pre - processed image . secondly , we validate these minutiae and eliminate pseudo ones 本文先采用脊线跟踪法将指纹图中的细节特征全部找出来，再对每个细节特征进行验证，尽量去除伪特征点。
Besides in nature , it is ray tracing based on the method mirror image . so it need not receive test , have higher computational efficiency and assure higher precision 另外,从本质上讲,它是一种基于镜像理论的点对点的射线跟踪法,所以无须进行接收测试,因此有较高的计算效率,并且保证了较高的精度。
Compared with traditional arithmetic , the result shows that the improved method is better in keeping integrality and consistency of image , image segmentation , threshold edge detection 然后针对骨髓切片图像中粘连细胞的特点,运用了基于距离变换的分水岭分割算法以及等值线跟踪及临界跟踪法完成了对粘连细胞的分割。
Finally , we constitute a homotopy algorithm and the pass - following method for solving the differential equation in the homotopy algorithm . the example also shows the validity of our homotopy method 最后，我们建立了相应的同伦算法以及解其中微分方程初值问题的曲线跟踪法，具体的实验例子也证实了我们所提出方法的有效性。
For deriving from the image method , the improved model is provided with high computing efficiency . for being able to find all paths between transmitter and receiver in theory , it gets high precision 该改进的射线跟踪法实质上是从镜像法发展而来，故它本身就具有较高的计算效率，并且它能准确找到从发射机到接收机之间所有路径，具有较高精度。
The method of beam track is introduced to briefly analyze the light - heat property of the surface porous metal plate , and a condideration to adopt the surface porous plate to replace flat plate as the collecting heat plate is proposed 作者通过光线跟踪法多孔板的光热性能作了简单的分析，并设想采用表面多孔金属板代替光滑板作为太阳能集热器吸热板芯。
