公开(公告)号：US09064309B2

公开(公告)日：2015-06-23

申请号：US14066633

申请日：2013-10-29

Applicant: Google Inc.

Inventor： Krishnendu Chaudhury ,  Stephen J. DiVerdi

IPC: G06K9/48 ,  G06T5/00 ,  H04N5/64

CPC classification number: G06T5/006 ,  G06T7/80

Abstract: Implementations relate to relate to rectification of distortion in an image. In some implementations, a method includes extracting edgelets from an image, each edgelet defined by a location of a pixel having an edge depicted in the image and defined by a direction of the edge. The method finds at least one vanishing point in the image based on intersections of pairs of the edges of the edgelets. Each vanishing point is selected based on a plurality of the edgelets in the image having edges approximately aligned with the vanishing point. Found vanishing points are used to transform the image to reduce image distortion.

Abstract translation: 实现涉及图像中的失真整流。 在一些实现中，一种方法包括从图像中提取边缘，每个边缘由具有图像中描绘的边缘并由边缘的方向限定的像素的位置限定。 该方法基于边缘边缘对的交叉点在图像中找到至少一个消失点。 基于图像中的多个边缘与消失点大致对准的边缘来选择每个消失点。 发现消失点用于转换图像以减少图像失真。