公开(公告)号：US20180173940A1

公开(公告)日：2018-06-21

申请号：US15384154

申请日：2016-12-19

Applicant: CANON KABUSHIKI KAISHA

Inventor： Getian Ye ,  Fei MAI ,  Geoffrey Richard Taylor

IPC: G06K9/00 ,  G06K9/52

CPC classification number: G06K9/00369 ,  G06K9/00295 ,  G06K9/00771 ,  G06K2009/4666

Abstract: A method of matching a person in captured images comprises determining first feature vectors from a first image sequence of person(s), and determining second feature vectors from a second image sequence of person(s). The first and second feature vectors are determined based on properties of pixels located in the first and second image sequences respectively. The method further comprises, for a first feature vector corresponding to a first person in the first image sequence, determining a reference distance to one of the second feature vectors corresponding to a reference person in the second image sequence; determining a distance metric by constraining a distance between the first feature vector and a feature vector corresponding to the first person in the second image sequence, according to the determined reference distance; and matching a pair of images of the person in the captured images based on the distance metric.

公开(公告)号：US20140119604A1

公开(公告)日：2014-05-01

申请号：US14065197

申请日：2013-10-28

Applicant: CANON KABUSHIKI KAISHA

Inventor： Fei MAI ,  Geoffrey Richard TAYLOR

IPC: G06K9/00

CPC classification number: G06K9/00624 ,  G06T7/11

Abstract: A method of detecting a supporting surface region in an image captured by a camera is disclosed. An object in the image is detected. One or more regions of the image in which a lower part of the detected object exists are determined. A degree of confidence for each of the regions is determined. The degree of confidence indicates likelihood of a corresponding region being a supporting surface region. One or more of the regions are selected based on each corresponding degree of confidence. Similarity of other regions in the image to at least one of the selected regions is determined. The supporting surface region is detected based on the determined similarity.

Abstract translation: 公开了一种检测由相机拍摄的图像中的支撑表面区域的方法。 检测到图像中的对象。 确定检测对象的下部存在的图像的一个或多个区域。 确定每个区域的置信度。 置信度表示相应区域是支撑表面区域的可能性。 基于每个相应的置信度来选择一个或多个区域。 确定图像中的其它区域与所选择的区域中的至少一个的相似度。 基于所确定的相似度来检测支撑表面区域。