公开(公告)号：US20160189005A1

公开(公告)日：2016-06-30

申请号：US14902332

申请日：2013-12-04

Applicant: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES

Inventor： Kangxue YIN ,  Hui HUANG

IPC: G06K9/62 ,  G06K9/48 ,  G06K9/34 ,  G06K9/46

CPC classification number: G06K9/6251 ,  G06K9/342 ,  G06K9/4671 ,  G06K9/48 ,  G06K9/481 ,  G06K9/6207 ,  G06K2009/366 ,  G06K2009/484 ,  G06T7/13

Abstract: Provided is a method for extracting an image salient curve. The method comprises the following steps: drawing an approximate curve along a salient edge of an image from which a salient curve is to be extracted; obtaining short edges in the image; calculating a harmonic vector field by using the drawn curve as a boundary condition; filtering the short edges in the image by using the harmonic vector field; updating the vector field by using the short edges left in the image as boundary conditions; and obtaining an optimal salient curve of the image by using the energy of a minimized spline curve in the vector field. Also provided is a system for extracting an image salient curve. The image salient curve can ensure the smoothness and a bending characteristic.

Abstract translation: 提供一种用于提取图像突出曲线的方法。 该方法包括以下步骤：沿着要提取显着曲线的图像的显着边缘绘制近似曲线; 获得图像中的短边; 通过使用绘制曲线作为边界条件来计算谐波矢量场; 通过使用谐波矢量场对图像中的短边进行滤波; 通过使用图像中剩余的短边作为边界条件来更新矢量场; 并通过使用矢量场中最小化样条曲线的能量来获得图像的最佳显着曲线。 还提供了用于提取图像突出曲线的系统。 图像突出曲线可以确保平滑度和弯曲特性。