公开(公告)号：US20190260739A1

公开(公告)日：2019-08-22

申请号：US16343301

申请日：2017-10-04

Applicant: POLITECNICO DI TORINO

Inventor： Enrico Magli ,  Giulio Coluccia ,  Diego Valsesia ,  Tiziano Bianchi

IPC: H04L29/06 ,  G06F21/44 ,  H04W12/06 ,  G06K9/46 ,  G06K9/00 ,  H04L9/06 ,  H03M13/13

Abstract: A device, a user equipment, and methods for registering and authenticating the user equipment are provided, wherein the user equipment includes an image sensor, communication components for communicating with the device, control and processing components configured for acquiring at least one image by way of the image sensor, generating an authentication sensor fingerprint on the basis of the at least one acquired image, coding at least one portion of the authentication sensor fingerprint by way of a random projection algorithm, so as to generate at least one compressed portion (W′) of the authentication sensor fingerprint, transmitting, through the communication components, the at least one compressed portion (W′) to the device.

公开(公告)号：US10133924B2

公开(公告)日：2018-11-20

申请号：US15325698

申请日：2015-07-16

Applicant: POLITECNICO DI TORINO

Inventor： Diego Valsesia ,  Giulio Coluccia ,  Tiziano Bianchi ,  Enrico Magli

IPC: G06K9/46 ,  G06K9/00 ,  G06F17/30 ,  G06K9/44 ,  G06K9/62

Abstract: A method for fingerprint matching and camera identification includes reading, through a device, a camera fingerprint extracted from a picture taken by a camera, and calculating a compressed version of the camera fingerprint through a random projections technique.

公开(公告)号：US10990660B2

公开(公告)日：2021-04-27

申请号：US16343301

申请日：2017-10-04

Applicant: POLITECNICO DI TORINO

Inventor： Enrico Magli ,  Giulio Coluccia ,  Diego Valsesia ,  Tiziano Bianchi

IPC: G06F7/04 ,  G06F21/32 ,  G06F21/44 ,  G06K9/00 ,  G06K9/46 ,  H03M13/13 ,  H04L9/06 ,  H04L29/06 ,  H04W12/06 ,  G06F15/16

Abstract: A device, a user equipment, and methods for registering and authenticating the user equipment are provided, wherein the user equipment includes an image sensor, communication components for communicating with the device, control and processing components configured for acquiring at least one image by way of the image sensor, generating an authentication sensor fingerprint on the basis of the at least one acquired image, coding at least one portion of the authentication sensor fingerprint by way of a random projection algorithm, so as to generate at least one compressed portion (W′) of the authentication sensor fingerprint, transmitting, through the communication components, the at least one compressed portion (W′) to the device.

公开(公告)号：US20170169293A1

公开(公告)日：2017-06-15

申请号：US15325698

申请日：2015-07-16

Applicant: POLITECNICO DI TORINO

Inventor： Diego Valsesia ,  Giulio Coluccia ,  Tiziano Bianchi ,  Enrico Magli

IPC: G06K9/00 ,  G06K9/44 ,  G06F17/30 ,  G06K9/62

CPC classification number: G06K9/00577 ,  G06F17/30256 ,  G06K9/44 ,  G06K9/6202 ,  G06K2009/00583

Abstract: A method for fingerprint matching and camera identification includes reading, through a device, a camera fingerprint extracted from a picture taken by a camera, and calculating a compressed version of the camera fingerprint through a random projections technique.

公开(公告)号：US10515112B2

公开(公告)日：2019-12-24

申请号：US15575234

申请日：2016-06-20

Applicant: POLITECNICO DI TORINO

Inventor： Diego Valsesia ,  Giulio Coluccia ,  Tiziano Bianchi ,  Enrico Magli

IPC: G06K9/00 ,  G06K9/62 ,  G06F16/583 ,  G06F16/51

Abstract: A method and a device for searching for images in memory containing at least one or more images and, for each image, at least one sensor fingerprint associated with the image and related to the sensor that acquired the image includes a reading phase, wherein a search sensor fingerprint is read, a compression phase, wherein the search sensor fingerprint and at least one of the sensor fingerprints associated with the images are compressed by using a random projection technique, and a searching phase, wherein the images contained in the memory are either selected or discarded by comparing the sensor fingerprints of the images with the search sensor fingerprint.

公开(公告)号：US20180157680A1

公开(公告)日：2018-06-07

申请号：US15575234

申请日：2016-06-20

Applicant: POLITECNICO DI TORINO

Inventor： Diego Valsesia ,  Giulio Coluccia ,  Tiziano Bianchi ,  Enrico Magli

IPC: G06F17/30 ,  G06K9/62 ,  G06K9/00

CPC classification number: G06F16/5838 ,  G06F16/51 ,  G06F16/583 ,  G06K9/00577 ,  G06K9/6202 ,  G06K9/6203 ,  G06K9/6215 ,  G06K9/6251 ,  G06K2009/00583

Abstract: A method and a device for searching for images in memory containing at least one or more images and, for each image, at least one sensor fingerprint associated with the image and related to the sensor that acquired the image includes a reading phase, wherein a search sensor fingerprint is read, a compression phase, wherein the search sensor fingerprint and at least one of the sensor fingerprints associated with the images are compressed by using a random projection technique, and a searching phase, wherein the images contained in the memory are either selected or discarded by comparing the sensor fingerprints of the images with the search sensor fingerprint.