Patent AU-2018402494-A1 (AU)
Title: Privacy-preserving image region duplication detection method
Inventor: WENG JIAN
IPC: G06F21/30
Filed: 2018-12-14
Abstract: (12) J- 4MAf*#Tree IN i l (19) P d PIT, R. ~(10) M KTW/A V4:Y (43) d VTWO 2019/242254 A1 2019 4 12 ) 26 (26.12.2019) W IPO T PWC0T H04NJ/44 (2006.01) H04L 29/08 (2006.01) E X I R IN601 , Guangdong 510632 (CN)o (21) g 8$i :PCT/CN2018/121122 #799J d (YANG, Yaxi); i r R 7Q i*itIftf4601t, Guangdong 510632 (CN)o . (22) MI8 i H: 2018 4 12 )] 14 H (14.12.2018) VAN (WEI,Kaimin); t (25) i #:titIftf601 , Guangdong 510632 (CN)o AlJt _± (LIU,Zhiquan); t fHT JZ (26) QW jf : tIftf601, Guangdong 510632 (CN)o i (30) j $Rfi : (DONG,Caiqin); dI' 201810634217.6 20184 6)A20H (20.06.2018) CN tiLV46019, Guangdong 510632 (CN)o (71) iM: jM4 (JINAN UNIVERSITY) [CN/CN]; (74) {tINAX: f ')1f I+i- -t t1] ift IT-j>R q P Pd 3T, r )[ N X X¶ i I 601 (GUANGZHOU KEYUE I.P. LAW OFFICE); +I , Guangdong 510632 (CN). F 3 0 F )'1 r A A X ' M + M 100 ! r 23-1 (72) &f)l A : jt(WENG,Jian); %I 5R tAi616t, Guangdong 510070 (CN)o N ZE ½tifi 6019, Guangdong 510632 (CN)o (81) 4'In2 (|W954 PH)A, VRV-SCffAf G9[I fgf): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, (54) Title: IMAGE AREA COPY DETECTION METHOD SUPPORTING PRIVACY PROTECTION FUNCTION (54) &ract: n imag area c P HEth fXt h s r a rva p = DD AA UsersideL BB Cipherrexr storage server side S -CC Cipherrexrclculation server side C DD Cipherrexr storage server side S2 (57) Abstract: An image area copy detection method supporting aprivacy protection function, comprising: auser side and Ninde pendent cloud server sides. Part of the server sides is used for ciphertext storage, and the other part is used for ciphertext calculation; the user side splits an image into a plurality of ciphertext by using an image encryption algorithm, and the ciphertext is respectively transmitted to the server sides for ciphertext storage; the server sides for ciphertext storage and the server sides for ciphertext calculation complete detection and positioning of a copy tampering operation of an image area under a ciphertext space by means of interaction and calculation; finally, each server side for ciphertext storage obtains a suspected tampering area, and the server side for ciphertext storage sends the result to the user side. The cloud server side provides an effective area copy evidence obtaining service on the premise that the image content is not known, and detection and positioning of the tampering operation are realized. With respect to a conventional area copy evidence obtaining tool or service, the method can provide privacy protection for the image content of a user. (5#E7)f40 ff:T-T h it ,, l j'' N% _$1 fl~ fT t~ ~ P A~J M: M P A N - tt 2;3fl W O 20 19/242254 A 1 ||||||||||l||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, Fl, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZWc (84)4 AT-tl~tft~l M': ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), RIl (AM, AZ, BY, KG, KZ, RU, TJ, TM), [III (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, Fl, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). - # K [I Tf*R(* M21*(3))