公开(公告)号：US20120257791A1

公开(公告)日：2012-10-11

申请号：US13512188

申请日：2010-10-28

申请人： Woon Tack Woo ,  Young Kyoon Jang

发明人： Woon Tack Woo ,  Young Kyoon Jang

IPC分类号： G06K9/00

CPC分类号： G06T7/13 ,  G06T2207/20016 ,  G06T2207/20061 ,  G06T2207/20101

摘要： Disclosed are an apparatus for detecting a vertex of an image and a method for the same detecting the vertex with the high degree of accuracy and reducing time to detect the vertex by minimizing the interaction operations of the user to detect the vertex even in a touch input part having the low degree of sensing precision. The method includes inputting a vertex position of an image, setting an ROI, detecting a plurality of edges, detecting a candidate straight line group based on the edges, and removing a candidate straight line forming forms an angle less than a critical angle with respect to a base candidate straight line set from the candidate straight line group, and determining an intersection point between a remaining candidate straight line and the base candidate straight line provided at a position making a minimum distance from the input vertex position as an optimal vertex.

摘要翻译： 公开了一种用于检测图像的顶点的装置和用于以高精度检测顶点的方法，并且通过最小化用户即使在触摸输入中检测顶点的交互操作来缩短检测顶点的时间 传感精度低的部分。 该方法包括输入图像的顶点位置，设置ROI，检测多个边缘，基于边缘检测候选直线组，以及去除候选直线形成形成小于临界角的角度相对于 从所述候选直线组设定的基准候选直线，以及确定剩余候选直线和设置在从所述输入顶点位置起最小距离的位置处的所述基准候选直线之间的交点作为最佳顶点。