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Object-oriented image representation method and apparatus using irregular meshes

机译:使用不规则网格的面向对象的图像表示方法和装置

摘要

An object-oriented image representation apparatus using irregular meshes includes an object image extractor (10) for extracting image blocks containing an object contained in a whole image from the whole image represented by received image data. A regular mesh former (20) generates rectangular mesh data including fixed control points, floating control points and pixel data from the extracted object image. The fixed control points and the floating control points are vertex points belonging to an object image among vertex points of a plurality of the rectangular meshes which divide the whole image and the fixed control points are vertex points located at the corners of the object image. An irregular mesh former (30) receives the rectangular mesh data and repeats an operation for removing the floating control point having image descriptiveness of the lowest degree and an operation for dividing a region of support from which the floating control point is removed into polygonal meshes, until the number of the remaining floating control points reaches a predetermined threshold value. Thus, since a mesh representation with respect to an object instead of a whole image can be done, a much more efficient signal processing is possible compared with the mesh representation of the whole image.
机译:使用不规则网格的面向对象的图像表示设备包括对象图像提取器(10),该对象图像提取器(10)从由接收到的图像数据表示的整个图像中提取包含整个图像中包含的对象的图像块。常规网格形成器(20)从提取的对象图像生成包括固定控制点,浮动控制点和像素数据的矩形网格数据。固定控制点和浮动控制点是划分整个图像的多个矩形网格的顶点中的,属于对象图像的顶点,并且固定控制点是位于对象图像的拐角处的顶点。不规则网格形成器(30)接收矩形网格数据,并且重复用于去除具有最低程度的图像描述性的漂浮控制点的操作和用于将去除漂浮控制点的支撑区域划分为多边形网格的操作,直到剩余的浮动控制点的数量达到预定阈值为止。因此,由于可以相对于对象而不是整个图像进行网格表示,因此与整个图像的网格表示相比,可以进行效率更高的信号处理。

著录项

  • 公开/公告号EP0808066A2

    专利类型

  • 公开/公告日1997-11-19

    原文格式PDF

  • 申请/专利权人 SAMSUNG ELECTRONICS CO. LTD.;

    申请/专利号EP19970303165

  • 发明设计人 CHUN KANG-WOOK;

    申请日1997-05-09

  • 分类号H04N7/26;H04N7/36;G06T9/00;

  • 国家 EP

  • 入库时间 2022-08-22 02:50:54

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