淡江大學機構典藏:Item 987654321/35307
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    题名: 自主機器人對於環境中點特徵與區域特徵的偵測與追蹤
    其它题名: Detection and tracking of point and region features in environments for autonomous robot systems
    作者: 曹雅威;Tsao, Ya-wei
    贡献者: 淡江大學機械與機電工程學系碩士班
    王銀添;Wang, Yin-tien
    关键词: 機器人視覺;點特徵;區域特徵;尺度不變特徵轉換;加速強健特徵;Robot vision;Point features;Region features;Scale Invariant Feature Transform (SIFT);Speed Up Robust Features (SURF)
    日期: 2008
    上传时间: 2010-01-11 06:20:34 (UTC+8)
    摘要: 本論文針對自主機器人認知環境的議題進行研究，使用CMOS機器人視覺系統搭配影像特徵偵測與追蹤演算法，輔助機器人認知週遭環境。第一個階段將偵測自然環境中的點特徵(point features)，提供機器人進行定位與建圖之用。根據相同的特徵點進而分辨環境中的通道(path)與障礙物，提供機器人避障機制使用。第二階段將使用尺度不變特徵轉換(SIFT)與加速強健特徵(SURF)兩種方法偵測自然環境中的區域影像特徵(local or region image features)，包括特徵的點座標與方向描述，達到直接辨識障礙物的功能，提供機器人定位與避障機制之用。
    The aim of this thesis is to conduct the research of cognition of environments for an autonomous robot. A CMOS robot vision system is utilized to capture the image of the environments, and the image processing algorithms for feature detection and tracking are applied to form a mechanism for the robot to cognize the surrounding environment. The research is divided into two stages: in the first stage, the spot characteristics or point features in the natural environment will be detected and tracked. The three dimensional coordinates of the point features are calculated for the robot to carry out the tasks of localization and map building. Furthermore, the point features nearby are gathered into a cluster and treated as an obstacle in the environments, which is distinct from the feasible paths for robot motion. In the second stage, the methods of Scale Invariant Feature Transform (SIFT) and Speed Up Robust Features (SURF) are employed to recognize and track the region phantom characteristic or region image features, including coordinates and directional descriptor of the interest point. The purpose of the second research stage is to construct the capability of recognition and avoiding of obstacles simultaneously for the robot system.
    显示于类别:[機械與機電工程學系暨研究所] 學位論文

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