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1. WO2006093531 - SYSTEM AND METHOD FOR NETWORK-BASED OBJECT AUTHENTICATION

Publication Number WO/2006/093531
Publication Date 08.09.2006
International Application No. PCT/US2005/029874
International Filing Date 23.08.2005
IPC
H04L 9/00 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Arrangements for secret or secure communication
CPC
G06T 1/0028
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
1General purpose image data processing
0021Image watermarking
0028Adaptive watermarking, e.g. Human Visual System [HVS]-based watermarking
G06T 1/005
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
1General purpose image data processing
0021Image watermarking
005Robust watermarking, e.g. average attack or collusion attack resistant
G06T 2201/0051
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
2201General purpose image data processing
005Image watermarking
0051Embedding of the watermark in the spatial domain
G06T 2201/0065
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
2201General purpose image data processing
005Image watermarking
0065Extraction of an embedded watermark; Reliable detection
G06T 2201/0083
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
2201General purpose image data processing
005Image watermarking
0083whereby only watermarked image required at decoder, e.g. source-based, blind, oblivious
G09C 5/00
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
CCODING OR CIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
5Ciphering apparatus or methods not provided for in the preceding groups, e.g. involving the concealment or deformation of graphic data such as designs, written or printed messages
Applicants
  • GRAPHIC SECURITY SYSTEMS CORPORATION [US]/[US] (AE, AG, AL, AM, AT, AU, AZ, BA, BB, BE, BF, BG, BJ, BR, BW, BY, BZ, CA, CF, CG, CH, CI, CM, CN, CO, CR, CU, CY, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, FR, GA, GB, GD, GE, GH, GM, GN, GQ, GR, GW, HR, HU, ID, IE, IL, IN, IS, IT, JP, KE, KG, KM, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MC, MD, MG, MK, ML, MN, MR, MW, MX, MZ, NA, NE, NG, NI, NL, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SI, SK, SL, SM, SN, SY, SZ, TD, TG, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, VN, YU, ZA, ZM, ZW)
  • ALASIA, Alfred, V. [US]/[US] (UsOnly)
  • ALASIA, Alfred, J. [US]/[US] (UsOnly)
  • ALASIA, Thomas, C. [US]/[US] (UsOnly)
  • CVETKOVIC, Slobodan [YU]/[US] (UsOnly)
  • ILIC, Igor [YU]/[US] (UsOnly)
Inventors
  • ALASIA, Alfred, V.
  • ALASIA, Alfred, J.
  • ALASIA, Thomas, C.
  • CVETKOVIC, Slobodan
  • ILIC, Igor
Agents
  • MARTINEZ DE ANDINO, J., Michael
Priority Data
11/068,35028.02.2005US
11/207,43719.08.2005US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEM AND METHOD FOR NETWORK-BASED OBJECT AUTHENTICATION
(FR) SYSTEME ET PROCEDE POUR L'AUTHENTIFICATION D'OBJET A BASE DE RESEAU
Abstract
(EN)
A method is provided for determining whether an object is an authentic object to which an expected encoded image has been applied (S170). The expected encoded image having been constructed by encoding an authentication image using a set of one or more encoding parameters. The method comprises receiving a digital image of at least a portion of the test object including a target area where the expected encoded image would be applied if the test object is an authentic object (S120). The method further comprises determining the one or more encoding parameters (S130) and applying a digital decoding algorithm to the captured digital image to establish a decoding result (S150). The decoding result may then be compared to object authentication criteria to establish an authentication result (S160). In particular embodiments of the invention, the actions of receiving, determining, applying and comparing are carried out by an authentication server and the digital image is received from an inspection processor over a network.
(FR)
Procédé permettant de déterminer si un objet est un objet authentique auquel une image codée prévue a été appliquée (S170), cette image ayant été construite par codage d'une image d'authentification au moyen d'un ensemble à un ou plusieurs paramètres de codage. Le procédé est le suivant : réception d'une image numérique d'au moins une partie de l'objet d'essai comprenant une zone cible à laquelle l'image codée prévue serait appliquée si l'objet d'essai est un objet authentique (S120) ; détermination d'un ou plusieurs paramètres de codage (S130) et application d'un algorithme de décodage numérique à l'image numérique saisie pour la production d'un résultat de décodage (S150) qui peut ensuite être comparé à des critères d'authentification d'objet pour l'établissement d'un résultat d'authentification (S160). Sous des variantes particulières, ces opérations sont conduites par un serveur d'authentification et l'image numérique est reçue depuis un processeur d'inspection via un réseau.
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