公开(公告)号：AU2015311785B9

公开(公告)日：2020-05-28

申请号：AU2015311785

申请日：2015-09-04

Applicant: QUALCOMM INC

Inventor： DU ELIZA YINGZI ,  CHEN MING YU ,  VURAL ESRA ,  CHAN KWOKLEUNG ,  BURNS DAVID WILLIAM ,  GANTI SURYAPRAKASH ,  SCHNEIDER JOHN KEITH ,  BANDYOPADHYAY SAURAV ,  GU JIN

IPC: G06V30/144

Abstract: A method of determining whether a biometric object is part of a live individual is described. In one such method, image information is acquired from the biometric object by using a sensor, such as an ultrasonic sensor. The image information may be analyzed in at least two analysis stages. One of the analysis stages may be a temporal analysis stage that analyzes changes in the image information obtained during a time period throughout which the biometric object was continuously available to the sensor. For example, a dead/alive stage may analyze differences between image information taken at two different times in order to identify changes from one time to the next. Other stages may focus on aspects of a particular image information set, rather than seeking to assess changes over time. These other stages seek to determine whether an image information set exhibits characteristics similar to those of a live biometric object.

公开(公告)号：CA2957218A1

公开(公告)日：2016-03-10

申请号：CA2957218

申请日：2015-09-04

Applicant: QUALCOMM INC

Inventor： DU ELIZA YINGZI ,  CHEN MING YU ,  VURAL ESRA ,  CHAN KWOKLEUNG ,  BURNS DAVID WILLIAM ,  GANTI SURYAPRAKASH ,  SCHNEIDER JOHN KEITH ,  BANDYOPADHYAY SAURAV ,  GU JIN

IPC: G06V30/144 ,  G06T7/00

Abstract: A method of determining whether a biometric object is part of a live individual is described. In one such method, image information is acquired from the biometric object by using a sensor, such as an ultrasonic sensor. The image information may be analyzed in at least two analysis stages. One of the analysis stages may be a temporal analysis stage that analyzes changes in the image information obtained during a time period throughout which the biometric object was continuously available to the sensor. For example, a dead/alive stage may analyze differences between image information taken at two different times in order to identify changes from one time to the next. Other stages may focus on aspects of a particular image information set, rather than seeking to assess changes over time. These other stages seek to determine whether an image information set exhibits characteristics similar to those of a live biometric object.

公开(公告)号：AU2015311785B2

公开(公告)日：2020-05-21

申请号：AU2015311785

申请日：2015-09-04

Applicant: QUALCOMM INC

Inventor： DU ELIZA YINGZI ,  CHEN MING YU ,  VURAL ESRA ,  CHAN KWOKLEUNG ,  BURNS DAVID WILLIAM ,  GANTI SURYAPRAKASH ,  SCHNEIDER JOHN KEITH ,  BANDYOPADHYAY SAURAV ,  GU JIN

IPC: G06V30/144

Abstract: A method of determining whether a biometric object is part of a live individual is described. In one such method, image information is acquired from the biometric object by using a sensor, such as an ultrasonic sensor. The image information may be analyzed in at least two analysis stages. One of the analysis stages may be a temporal analysis stage that analyzes changes in the image information obtained during a time period throughout which the biometric object was continuously available to the sensor. For example, a dead/alive stage may analyze differences between image information taken at two different times in order to identify changes from one time to the next. Other stages may focus on aspects of a particular image information set, rather than seeking to assess changes over time. These other stages seek to determine whether an image information set exhibits characteristics similar to those of a live biometric object.

公开(公告)号：AU2015311785A1

公开(公告)日：2017-03-02

申请号：AU2015311785

申请日：2015-09-04

Applicant: QUALCOMM INC

Inventor： DU ELIZA YINGZI ,  CHEN MING YU ,  VURAL ESRA ,  CHAN KWOKLEUNG ,  BURNS DAVID WILLIAM ,  GANTI SURYAPRAKASH ,  SCHNEIDER JOHN KEITH ,  BANDYOPADHYAY SAURAV ,  GU JIN

IPC: G06V30/144

Abstract: A method of determining whether a biometric object is part of a live individual is described. In one such method, image information is acquired from the biometric object by using a sensor, such as an ultrasonic sensor. The image information may be analyzed in at least two analysis stages. One of the analysis stages may be a temporal analysis stage that analyzes changes in the image information obtained during a time period throughout which the biometric object was continuously available to the sensor. For example, a dead/alive stage may analyze differences between image information taken at two different times in order to identify changes from one time to the next. Other stages may focus on aspects of a particular image information set, rather than seeking to assess changes over time. These other stages seek to determine whether an image information set exhibits characteristics similar to those of a live biometric object.