부호화된 영상의 크기를 변환하는 새로운 고속 트랜스코더

박일우,조용국,명진수,채병조,오승준,양창모,조위덕,Park, Il-Woo,Cho, Yong-Gook,Myung, Jin-Su,Chae, Byung-Jo,Oh, Seoung-Jun,Yang, Chang-Mo,Cho, We-Duke 대한전자공학회 2002 電子工學會論文誌-SP (Signal processing) Vol.39 No.6

최근 이동 무선망을 통한 발전된 비디오 응용 서비스에서 비디오 스트림의 크기를 효과적으로 줄이는 트랜스코더가 필요로 하게 되었다. 이러한 트랜스코더는 화소공간뿐만 아니라 DCT 공간상에서도 가능하다. 본 논문에서는 화소공간과 DCT 공간을 활용하여 시각적 화질을 유지하면서 영상 크기를 효과적으로 줄이는 새로운 고속 복합 트랜스코더를 제안하였다. 또한 부호화 모드 결정과 움직임 벡터 재산출 방법을 제안하였다. 대표적인 실험용 비디오 시퀀스에 적용하였을 때 기존의 공간영역 트랜스코딩 방법과 유사한 시각적 화질을 유지하면서도 계산량을 감소시킬 수 있었다. Recently, many advanced video application services over the mobile wireless networks have required a transcoder which can efficiently reduce the size of compressed video bitstreams. The transcoder can be worked in either the spatial domain or the DCT domain. In this paper, we propose a new fast hybrid-type transcoder which can efficiently reduce the frame size with keeping the visual quality. The proposed scheme consists of two major processes: a transform domain process and a spatial domain process. We also propose a scheme for coding mode selection and motion vector refinement. Experimental results show that our approach can reduce the computational complexity more than any other conventional spatial-domain transcoder with keeping the visual quality.

주택문화관의 디자인 및 운영방식에 대한 쟁점

박일우(Park, Il-Woo),조금령(Cho, Kum-Lyong) 한국실내디자인학회 2003 한국실내디자인학회논문집 Vol.- No.37

모리스의 미학기호학

박일우(Il Woo Park) 한국프랑스학회 1993 한국프랑스학논집 Vol.19 No.-

N/A N/A

부호화된 영상에 대한 고속 크기 변환 기술

박일우(Park Il-Woo),명진수(Jeensoo Myung),정광수(Kwangsoo Chung),오승준(Seoung-Jun Oh) 한국통신학회 2002 한국통신학회 학술대회논문집 Vol.2002 No.7

뇌졸중 환자의 수동적 어깨 관절 가동범위 측정에 관한 스마트폰과 측각기의 측정자내, 측정자간 신뢰도 연구

박일우 ( Il Woo Park ),임원빈 ( One Bin Lim ),박규남 ( Kyue Nam Park ),이충휘 ( Chung Hwi Yi ) 한국전문물리치료학회 2014 한국전문물리치료학회지 Vol.21 No.1

The purpose of this study were to determine the intra-rater and inter-rater reliability of shoulder passive range of motion measurement using the "Clinometer + bubble level", a smartphone application and to compare with the intra-rater and inter-rater reliability of measurement using a goniometer. Twenty six patients with stroke were recruited for this study. Two raters measured the passive range of motion of four types of shoulder movements (forward flexion; FF, abduction; ABD, external rotation at 90° abduction; ER90 and internal rotation at 90° abduction; IR90) using a goniometer and a smartphone to determine within-day inter-rater reliability. A retest session was performed thirty minutes later to determine within-day intra-rater reliability. The reliability was assessed using intraclass correlation coefficients (ICC) and the standard error of measurement (SEM). The ICC (2,1) for the inter-rater reliabilities of the goniometer and smartphone were good in FF and ABD [ICC (2,1)=.75∼.87] and excellent in ER90 [ICC (2,1)=.90∼.95]. The intra-rater reliabilities for the goniometer and smartphone were good or more than good, with an ICC (3,1) value >.75, the exception was IR90 measured by rater 2 on the smartphone. These results suggest that smartphone could be used as an alternative method tool for measurement of passive shoulder range of motion in patients with stroke.

기호학의 새로운 사명 -교양교육에서 기호학의 역할

박일우 ( Il Woo Park ) 한국기호학회 2015 기호학연구 Vol.43 No.-

기호학은 아직도 그 성격이 규정이 되지 않은 채로 진행되는 학문으로 보인다. 기호학의 태동기부터 진행된 일련의 논의는 그 외연이 넓어지기만 할 뿐 학문의 대상, 방법론, 목표는 정계(定界)에서 더 멀어지는 양상을 보였다. 기호학은 하나의 독립된 학문이 아니라 학제적, 학문, 나아가 초학제적 학문 혹은 관점으로 이해된다. 의미의 문제에 관심을 가지는 현상학, 수사학, 해석학은 물론, 매체의 변화에 따르는 오늘날의 모든 인식론적 모델이 넓은 의미에서 기호학의 구성요소로 참여한다. 이런 맥락에서 최근에 대두되는 ‘교육기호학’은 기호학 연구의 발전과정에서 필연적인 수순으로 보인다. 한편, 국내 고등교육의 환경은 심각한 상황에 놓여 있다. 급변하는 사회적 요구와 입학 자원 고갈은 가장 먼저 인문학과 같은 기초학문에 치명타를 남긴다. 그동안 무분별하게 팽창해왔던 대학은 구조조정이란 급류에 휘말리는 중이다. 이 위기의 시대에 교양교육은 다시 정립될 수밖에 없다. 그것은 곧 융ㆍ복합과 인성을 화두로 삼는다. 이 두 덕목은 앞으로 교육과정만이 아닌, 대학의 편제, 즉 하드웨어를 다시 규정하는 기준이 될 것이다. 기호학은 오늘날 대학교육의 위기를 제대로 된 고등교육의 기회로 만들 수 있는 하나의 타개책이 될 수 있다. ‘융ㆍ복합’과 ‘가로지르기’라는 방법론은 기호학의 전매특 허인 것이다. 교양교육, 나아가 학부과정의 교육과정은 기호학적 관점의 도입이 전제가 되어야 한다. 이 글은 그러한 관점을 교양교육의 장에서 실현한 사례 두 가지를 제시하면서, 이제 기호학은 시대의 요구에 부응하는 교육과정과 교육철학의 메카로서 새로이 태어나자는 제안을 하는 것이다. In this paper we attempted to review the trans-disciplinary characters of the Semiotic studies and its applicableness to the general education. Semiotics have been built up, from beginning, as an interdisciplinary science, but with flow of new media, it is endowed with another character; trans-disciplinary science or ‘point of view’ that envelopes all the epistemological approaches. Meanwhile, the current situation of college education in Korea is now suffering from a renovation of curricula and hard wares reconstruction that is an unavoidable result from the past wrong oriented history of college education and policies. Now, general education, as well as ‘major’ education, are forced to be reformed on the ground of the methodological ‘convergence’, of which none but semiotics have been made. This article treated two examples of new general education curricula developed from the semiotic point of view, and proposed that it is time for semiotic studies to participate and lead the age of reforming college education not only in its philosophical aspect but practical fields.

창의적 문제 해결 프로세스를 위한 S-ARIZ 개발

박일우(Il-Woo Park),최성훈(Seong-Hoon Choi) 한국신뢰성학회 2015 신뢰성응용연구 Vol.15 No.1

TRIZ is one of the most famous tools for creative problem solving. However, it is said that TRIZ is complicated and difficult to understand and apply to solve problems. In order to resolve these difficulties, this paper presents S-ARIZ, a simplified ARIZ(the algorithm for inventive problem solving). S-ARIZ revised ARIZ-85C on two ways. First, cause and effect analysis is used to define core technical contradictions and control parameters for the physical contradictions. Second, we add 5 inventive principles which revised SIT(systematic inventive thinking) partially to IFR-1 definition (Step 3-2 of ARIZ-85C) to solve the intensified technical contradictions systematically and effectively. It is expect that S-ARIZ can contribute to the rapid spread of TRIZ.

프랑스 지역학 / 언어학 / 플로슈 조형기호학의 변용에 관한 비판적 고찰

박일우(Il Woo Park) 한국프랑스학회 2000 한국프랑스학논집 Vol.32 No.-

J.-M. Floch, un des disciples de Greimas, a public trois livres intervales gaux. Petites mythologies de 1`oeil et de 1`esprit(1985) vise construire la smiotique plastique. Celle-ci a pour but de comprendre les conditions de production mais aussi lintentionalit dun certain type de relation entre un signifiant visuel et un signifi. Tel propos implique le refus de substituer aux objets de sens manifests par le jeu des eslments figuratives une lexicalsation immediate de leur seule dimension figurative. Ce propos se transforme dans SEmiotique, marketing et communication (1990) . L`auteur pense que la smiotique peut representer, dans le domaine de marketing, une relle valeur aioute dans trois types de production ou de transformation : il faut obtenir plus dintelligibilit. plus de pertinence, plus de diffrenciation. Dans Identity visuelles(1995). 1`auteur a conscience de revenir son cap. Sengager dans 1`analyse des identitess visuelles, cest continuer travailler sur les rapports entre le sensible et lintelligence : au centre des analyses se situe le concept de `bricolaBe`. Nous critiquons que cette mrstamorphose est dGe des caractcres flous de la thorie du plastique mane mais nous estimons que le trajet intellectuel de Floch s`arrte la naissance de la smiotique syncrtique, qui abordera les divers discours sur la culture de 1`image.

중국 현대미술의 동향과 과제

박일우(Park, Il-Woo) 계명대학교 국제학연구소 2014 국제학논총 Vol.22 No.-

This paper aims at describing roughly the trend and issues of Chinese contemporary art from 80’ to today. The chronological marks of Chinese modern art are defined with the political upheaval of the modern Chinese history, i.e., The ‘Cultural Revolution’, ‘Tiananmen’, and followed ‘Reform and Opening’ of China. Consequently, global comprehension of Chinese contemporary art has been attracted by the so-called “si da tianwang” and their art works known as Chinese avant-garde. This paper has examined the misunderstanding of the precedent about Chinese contemporary art, and revealed that up-to-dated contemporary Chines artists have overcome the political scratches of the past. Ignoring the Western view point of evaluation, some of them try to reinterpret the everlasting tradition of Chinese art, like Ink Painting, and their achievements proved to be the unique art form. Meanwhile, with the rapid economic growth of the region, the contemporary Chinese art and artists are deeply undermined by the commercialization of fine arts, and the paper does not forget to criticize it.

분체공학 유동층 재료 ( 무기 , 유기 , 고분자 ) : 저압 화학증착에 의해 제조된 ZnO 박막의 구조 및 음극발광특성

박일우(Il Woo Park),윤도영(Do Young Yoon),유재수(Jae Soo Yoo) 한국화학공학회 2000 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.38 No.2

ZnO thin film phosphor was deposited by MOCVD method for the applications of anode plate in a Field Emission Display. Atom-Forced Microscope, Scanning Electron Microscope, XRD, XPS, PL and CL were used for the examinations of the characteristics of the film deposited from diethyl zinc vapor. The film thickness ranges from 3,000 Å to 10,000 Å, and the rate of deposition was 50-150Å/min. The surface of the thin film was the most uniform at 450℃ and the rate of deposition was fastest at 500℃ among various temperature conditions. Above the deposition temperature of 550℃, the crystalline size was inhomogeneous because of the increased desorption rate, and the film was not deposited under 350℃. Even though the measured value of Cathodoluminescence(CL) was relatively low, the deposition temperature was found to be the most influential factor in the law pressure metal organic chemical vapor deposition process.