track base造句

• Finally, the method of dim small target detection and tracking based on the wavelet transform and mathematical morphology is described, which increases the image of target and gets rid of the noise which is high frequency, then, making use of information of inter-frame, it tracks the target more effective
  该方法首先利用了小波变换和形态学的原理,将小波变换和数学形态学结合对图像作预处理,滤除图像背景中的大部分高频噪声,增强了目标图像。进而再利用目标的帧间信息,对目标区域作帧相关,进一步确认目标。
• Finally, a new vr-based simulation system for robotic manipulators is developed, and intensive studies on the modeling of virtual enviroment of redundant robot arm based on opengl technology have been conducted, and motion planning approach of path tracking based on virtual model is developed, and the visualization of the motion planning process of the robotic manipulators is realized as well
  文章最后讨论和研究了一种新的基于虚拟现实的机器人仿真系统，重点研究了基于opengl的冗余度机器人机械臂仿真环境建模，开发了一种基于虚拟模型的用于跟踪作业的运动规划算法，实现了冗余度机器人运动规划过程的可视化。
• Secondly, we used the dsp assembly language to perform the carrier phase tracking based on a digital processing system . this system is designed according to the idea of software radio . this digital processing system realized the intermediate frequency digitalization . with the diverse configuration of the digital upconverter and digital downconverter in this system, it can carry through many signal modulation modes . and because the carrier phase trac king is performed using software in dsp, it brings great convenience to this system and makes this system available in many digital communication systems
  在该数字处理平台上可通过加载不同的软件对平台中的数字上下变频器进行灵活的配置以实现不同的数字调制解调制度，通过将载波的相位跟踪工作放在dsp软件中进行带来了很大的灵活性，能够适用于当前许多种数字通信系统。
• In the military field, due to its noncontact, interference immunity and concealment, object detection and tracking based on video image processing technology became an important application and study field . in the commercial field, it is widely used in machine vision and industrial detection systems
  在军事上,由于其非接触、抗干扰性强以及隐蔽性好等特点,基于视频图像处理技术的目标识别与跟踪是一个重要的应用与研究领域;在民用上,机器人视觉、工业检测等领域也有大量的应用。
• Object tracking based on image sequence, which is a significant and challenging research topic in computer vision, has been widely and deeply studied . however, the majority of the research works are focused on the tracking of man as well as maneuvering target such as cars and planes for a long time
  基于图像序列的目标跟踪作为计算机视觉领域的一个重要而富有挑战的课题,得到了广泛而深入的研究,然而长期以来大部分工作都集中在对人或者类似汽车飞机的机动目标的跟踪上。
• 5 . applying the theory of adaptive control to electro-hydraulic position servo system, bring forward a adaptive control method based on regulating gain and damp, a adaptive control method of approach track based on parameter identification, a self-tuning control method of pole placement, a adaptive control method of general predictive
  将自适应控制理论应用于电液位置伺服系统，提出了基于增益和阻尼比调节的自适应控制、基于参数辨识的渐近跟踪自适应控制、极点配置的自校正控制和广义预测的自适应控制。
• Visual analysis of human motion has been receiving increasing attention from researchers in the fields of image processing and computer vision during the past few years . it has a lot of applications in virtual reality, smart surveillance system, advanced user interface, motion analysis and video compressing, etc . this paper focuses on the technology of human motion tracking based on video, first, we make a summarization of the domestic and overseas status of the research in this field . on the basis of this, we analyse the technical difficulties of human motion tracking . as most of the existing model-based methods of human motion tracking perform not so good in some situation as they need mannual intervention, and also the precision of tracking is not so satisfying during the research of tracking of walking people because of the self-occlusion of legs, this paper proposes an algorithm of automatic detection and tracking of legs of the walking people based on monocular image sequences, in which we analyse the features of walking people, track the five joints of lower limbs, get various parameters, and then re-construct the walking process . the main research achievement is as follows : 1 ) we propose an algorithm of markerless automatic extraction of leg skeleton . first we divide the video into continuous image sequences, after background subtraction, the satisfying human region could be extracted, then we get a single-connected region by converting the rgb image to binary image and median filtering . afterwards, the contour of lower limbs in the frame with a widest boundingbox is detected, using sobel operator, to find the ankle joint of leg behind according to the features and rules of walking, then, the joint of knee of leg behind, hip, ankle of leg in front, knee of leg in front could be got in turn . so, model of leg skeleton is constructed
  首先将视频分解成许多连续的静态图像帧,经过背景去除,把感兴趣的人体区域提取出来,通过二值化,中值滤波等预处理方法得到只有人体的一个单连通区域,然后用sobel算子检测出boundingbox最宽帧中人体下半身的轮廓,根据运动规律及特征找到后腿踝关节点,结合从boundingbox最窄帧中所获取的腿长依次得到后腿膝关节,跨部关节,前腿踝关节,前腿膝关节四点,从而构建出腿部骨架模型。2)实现了人体步行腿部骨架的跟踪算法。在完成对腿部骨架模型的自动初始化之后,本文对跨关节、膝关节及踝关节分别采用运动建模、圆周相交定点算法、运动预测及预测点周围搜索rgb相似矩形块三种方法确定每一帧中其实际坐标,从而重构出腿部骨架的运动过程。