포렌식 마킹을 위한 특징점 기반의 동적 멀티미디어 핑거프린팅 코드 설계

이강현(Kang Hyeon RHEE) 大韓電子工學會 2011 전자공학회논문지CI (Computer and Information) Vol.48 No.4

본 논문에서는 멀티미디어 콘텐츠 보호에 대한 반공모 코드를 위한 동적 멀티미디어 핑거프린팅 코드를 설계하는 알고리즘을 제안한다. 기존의 반공모 코드(ACC: Anti-Collusion Code)를 위한 멀티미디어 핑거프린팅 코드는 BIBD(Balanced Incomplete Block Design)의 접속행렬을 보수행렬로 변환하여 k를 k+1로 증대시키는 수리적 방법으로 설계되었다. 그리고 보수행렬의 코드벡터를 사용자에게 핑거프린팅 코드로 부여하고, 콘텐츠에 삽입하였다. 제안된 알고리즘에서는 사용자가 구매하는 콘텐츠로부터 특징점을 추출하고, 이를 기반으로 동적으로 핑거프린팅 코드를 설계할 수 있도록 BIBD의 v와 k+1 조건을 만족하는 반공모 코드의 후보성 코드를 코드북(Codebook)에 구축하고 λ+1 조건을 만족하는 행렬(이하, Rhee행렬이라 함.)을 생성한다. 실험을 통하여 콘텐츠의 특징점 기반으로 생성된 Rhee행렬의 코드벡터는 v비트의 유의수준 (1-α)에서 신뢰구간에 k가 존재하며, Rhee행렬의 각 행과 행, 열과 열 사이의 유클리디안 거리가 BIBD 기반의 보수행렬과 그래프 기반의 보수행렬과 같은 k값이 산출되었다. 더욱이 Rhee행렬의 첫 행과 첫 열은 생성과정에서 초기 점화벡터로 콘텐츠 포렌식 마크 정보가 되며, 이와 관계가 있는 나머지 코드벡터들과의 관계성이 코드북에 기록되어 있기 때문에, 공모된 코드를 추적할 때 원 핑거프린팅 코드의 상관관계 계수를 구할 필요 없이 코드북의 탐색으로 공모자를 추적이 용이하다. 따라서 본 논문에서 생성된 Rhee행렬은 수리적으로 생성된 BIBD 기반의 행렬보다 ACC로서 강인성과 충실도가 우수하다. In this paper, it was presented a design on the dynamic multimedia fingerprinting code for anti-collusion code(ACC) in the protection of multimedia content. Multimedia fingerprinting code for the conventional ACC, is designed with a mathematical method to increase k to k+1 by transform from BIBD's an incidence matrix to a complement matrix. A codevector of the complement matrix is allowanced fingerprinting code to a user' authority and embedded into a content. In the proposed algorithm, the feature points were drawing from a content which user bought, with based on these to design the dynamical multimedia fingerprinting code. The candidate codes of ACC which satisfied BIBD's v and k+1 condition is registered in the codebook, and then a matrix is generated(Below that it calls “Rhee matrix”) with λ+1 condition. In the experimental results, the codevector of Rhee matrix based on a feature point of the content is generated to exist k in the confidence interval at the significance level (1-α). Euclidean distances between row and row and column and column each other of Rhee matrix is working out same k value as like the compliment matrices based on BIBD and Graph. Moreover, first row and column of Rhee matrix are an initial firing vector and to be a forensic mark of content protection. Because of the connection of the rest codevectors is reported in the codebook, when trace a colluded code, it isn't necessity to solve a correlation coefficient between original fingerprinting code and the colluded code but only search the codebook then a trace of the colluder is easy. Thus, the generated Rhee matrix in this paper has an excellent robustness and fidelity more than the mathematically generated matrix based on BIBD as ACC.

What Is Tao?

Rhee, Dongshick 韓國精神治療學會 1992 韓國精神治療學會誌 Vol.6 No.1

Fourier 변환 변이계수를 이용한 미디언 필터링 영상의 포렌식 판정

이강현(Kang Hyeon RHEE) 대한전자공학회 2015 전자공학회논문지 Vol.52 No.8

Properties of Dextransucrase from Leuconostoc mesenteroides Isolated from Sikhae

RHEE,SUK HYUNG,CHERL - HO LEE 한국미생물생명공학회 1991 Journal of microbiology and biotechnology Vol.1 No.3

FFT Algorithm and Nonharmonic Fourier Series

Rhee, Jung Soo 정보과학연구소부산외국어대학교 2001 情報科學論集 Vol.3 No.-

In the spectral analysis, Fourier coefficients is very important to give an information for the original signal f on the finite domain, since it recovers f (see [12]). Also Fourier analysis has extension to wavelet analysis for the whole space R (See [1], [2], [3], [4], [5], [7], [11]). Various kinds of reconstruction theorems are main subject to analyze signal functions in L^2(R) (See [6],[9], [10], [13], [14], [15], [16]). By recovering f properly, there are many applicationsin Digital Signal Processing and Image Processing. We have already demonsruction theorem in L^1(R^n) using the Fourier coefficient which is called a Modified Fourier Series expansion(nonharmonic Fourier series expansion) in the Rhee's previous paper(see[18]). In this paper, we present computationally efficient procedures as an application of FFT algorithm for practical importance in calculating the nonharmonic Fourier coefficients. Also we introduce new synthesis and analysis equations like the discrete Fourier transform(DFT) pair.

Origins of the Koguryo State(B.C.37-668 A.D)

Rhee,Song-Nai 한국상고사학회 1989 한국상고사학보 Vol.2 No.-

창강 김택영의 중국체류기(中國滯留期) 한시 고찰 -디아스포라의 관점에서-

이덕향 ( Deok-hyang Rhee ) 근역한문학회 2016 한문학논집 Vol.44 No.-

Chang kang Kim Taek young(1850~1927) manifested resistance to being enslaved by Japan just before the Eulsa annexation treaty and left Korea for Tong ju in China with his family. He made 300 asylum poetry in cluding historical publications. As the national destiny declined, he fled Japanese oppression into China in order to commit himself to patriotic writings. As a diaspora, he could n’t accord national identity with ethnic identity in exile. For the hope of Korean In dependence, he issued “Corrected Sam guk Sa gi” “New History of Goryeo”“Han sagye”, “Ahn Joong-geun” etc. He kept on publishing history books and collections of literary works despite of poor conditions. As a diaspora, he associated with Korean political figures working for the government-in-exile including Seung man Rhee. He filed a petition with Chinese government to support Korean independence with other nationalists. Kim Taek young’s asylum poems written in China can be classified from the perspective of a diaspora in three divisions. First of all, there are lamentation poets as a refugee. He suffered the country’s ignominy of being conquered by Japan. When he went to Soju to see a famous scholar, Euwol, he reminded the old capital of Onara. It reflected a bitter grief for national ruin of Joseon. In his other poem, “The Sixty’s birthday morning”, diaspora identity is also seen in many lines. He confessed his humiliating life in the dark age as a miserable exile in a foreign country and expressed a strong will to go back to homeland. Next, he composed poets of sincere patriotic concerns for the country’s fate. He continuously printed the history books and watched the country’s changing situations. Eulsa annexation treaty and Go jong’s abdication from the throne made him to pour out deep grief. He was longing for the restoration of Korean sovereignty. On “Hearing from Ahn Jung-geun’s righteous deed to kill an enemy”, he honored him as a noble patriot as well as Korean pride. he tried to raise national identity and self-esteem in a positive way. I considered his patriotic writings as diaspora poetry to contribute his efforts for the country’srestoration. Finally, he kept company with political figures and exiles. They shared sufferings. The poem about corresponding with Ahn Chang ho, he mentioned sorry affair for YounhyunJin who was an independence activist and died at an early age. The poem about communicating with Shingyusik, he deplored deeply his inevitable life, “Who could bring me home for the rest of my refugee life?”In the poetry, Kim Taek young can be understood as an miserable diaspora. Kim Taek young struggled with his writings through his life to express his sufferings and identity conflicts. He had a tough time to leave homeland and to survive in a strange foreign land. His lamentation over the national ruin and a humiliating colonial situation enabled him to issue a variety of patriotic writings. I examine Kim Taek young’s asylum poetry during the late 19thcentury in the Korean Empire remarked high level of Chinese prose and can be classified from the standpoint of diaspora literature

항암항생제 Daunorubicin의 Aglycone, 7,9-Dideoxydaunomycinone의 합성 (제1보)

조인호,이풍래,노영쇠,In Ho Cho,Richard P. Rhee,Young Soy Rho,F. M. Hauser 대한화학회 1986 대한화학회지 Vol.30 No.1

항암항생제 Daunorubicin(2a)합성단계의 최종물질인 7,9-Dideoxydaunomycinone (32)를 3-methoxybenzoic acid(5)로 부터 합성하였다. 3-methoxybenzoic acid를 4-methoxy-3-(phenylsulfonyl)-1(3H)-isobenzofuranone(11)으로 변형시킨 뒤 Hauser와 Rhee가 개발한 고리접합법을 이용하여 trimethoxynaphthoate 16을 얻은 후에 phenylsulfonylnaphthofuranone 22로 변화시킨 뒤 이 물질을 7-(ethylenedioxy)-2-octenoate(23)과 Michael형태의 반응을 전개시켜 anthracenoate 24를 얻었다. Anthracenoate을 tetracyclic 화합물 28로 바꾼뒤 ring B와 C에 붙은 methyl기들을 제거하여 7,9-Dideoxydaunomycinone(32)를 만들었다. 7,9-Dideoxydaunomycinone (32), a late-stage precursor of the aglycone of antitumor antibiotic daunorubicin(2a) was prepared from 3-methoxybenzoic acid(5). Thus, 3-methoxybenzoic acid was converted to 4-methoxy-3-(phenylsulfonyl)-1(3H)-isobenzofuranone(11), which furnished trimethoxynaphthoate 16 upon ring annelation developed by Hauser and Rhee. The trimethoxynaphthoate 16 upon ring annelation developed by Hauser and Rbee. The trimethoxynaphtboate 16 was then transformed into phenylsulfonylnaphthofuranone 22, which was used to make anthracenoate 24 via Michael type reaction with 7-(ethylenedioxy)-2-octenoate(23). Conversion of anthracenoate 24 to tetracyclic product 28, followed by subsequent deprotection of the methyl groups in ring-B and C furnished 7, 9-Dideoxydaunomycinone(32).

알루미나수화물의 침전 pH 가 물성에 미치는 영향

이계주 한국약제학회 1976 Journal of Pharmaceutical Investigation Vol.6 No.2

A study on the effect of the pH of precipitation on the acid consuming capacity, aging stability, physical and chemical properties of hydrous aluminum oxide prepared by the reaction of aluminum chloride and ammonium hydroxide solution was carried out by means of X-ray diffraction, IR spectra and differential thermal analysis. The results from these experiments are as follows: 1. Hydrous aluminum oxide precipitated at lower pH showed better acid consuming capacity, higher stability and more anion contained in the structure than that prepared at higher pH. 2. The hydrous aluminum oxide prepared at lower pH is amorphous and that prepared at higher pH is crystalline hydrated hydrous aluminum oxide, i.e., Bayerite and these results are conformed to Rhee's hypothesis. 3. The rate of loss of reactivity and the end-point reactivity are related to the pH of precipitation.

A Study on the Rate of Prevalence and the Countermeasure of the Hearing-impaired in Korea

이규식,김창수,이태영 대구대학교 특수교육재활과학연구소 1978 再活科學硏究 Vol.1 No.1

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