동중국해에 분포하는 개조개의 생식생물학적 연구

김영섭,김영혜,김종빈,장대수,이동우,강현정,Kim, Young-Seop,Kim, Yeong-Hye,Kim, Jon-Bin,Chang, Dae-Soo,Lee, Dong-Woo,Kang, Hyun-Jung 한국패류학회 2010 The Korean Journal of Malacology Vol.26 No.4

Reproductive biology of the purplish Washington clam, Saxidomus purpuratus was investigated based on the samples captured in Jinhae Bay, the East China Sea from January to December 2002. The gonad index (GI) began to increase in January, reached the maximum value in March. The reproductive cycle of this species can be divided into five successive stages: the early active stage (from November to January), the late active stage (from December to February), the ripe stage (from February to May and October), the spawned stage (from May to December), and inactive stage (from November to December). The spawning period was from April to December, and the main spawning occurred between June and August. The shell length at 50% group maturity was estimated to be 71.85 mm. The Sex ratio of this species was not significantly different a 1:1 sex ratio (P > 0.05). 개조개 표본은 동중국해의 진해만에서 잠수선에 의해 어획된 것을 2002년 1월부터 12월까지 매월 120개체씩 채집된 것이다. 생식소 발달단계는 비활성기 (11월-12월), 초기활성기 (11월-이듬해 1월), 후기활성기 (12월-이듬해 2월), 성숙기 (2월-5월과 10월), 산란기 (4월-12월) 등 5단계로 구분되었다. 주산란시기 6월부터 8월까지이었다. 성숙각장은 71-85mm로 추정되었다. 암컷과 수컷 성비는 유의한 차가 없었으므로 1:1이었다.

3차원 불균형 트리 구조를 가진 의료 영상 압축에 대한 연구

김영섭,조재훈,Kim, Young-Seop,Cho, Jae-Hoon 한국반도체디스플레이기술학회 2006 반도체디스플레이기술학회지 Vol.5 No.2

This paper focuses on lossy medical image compression methods for medical images that operate on three-dimensional(3-D) irreversible integer wavelet transform. We offer an application of unbalanced tree structure algorithm to medical images, using a 3-D unbalanced wavelet decomposition and a 3-D unbalanced spatial dependence tree. The wavelet decomposition is accomplished with integer wavelet filters implemented with the lifting method. We have tested our encoder on volumetric medical images using different integer filters and coding unit sizes. The coding unit sizes of 16 slices save considerable dynamic memory(RAM) and coding delay from full sequence coding units used in previous works. If we allow the formation of trees of different lengths, then we can accomodate more transaxial scales than three. The encoder and decoder can then keep track of the length of the tree in which each pixel resides through the sequence of decompositions. Results show that, even with these small coding units, our algorithm with certain filters performs as well and better in lossy coding than previous coding systems using 3-D integer unbalanced wavelet transforms on volumetric medical images.

정확한 깊이 맵을 위한 전처리 과정과 다이나믹 프로그래밍에 관한 연구

김영섭,송응열,Kim, Young-Seop,Song, Eung-Yeol 한국반도체디스플레이기술학회 2010 반도체디스플레이기술학회지 Vol.9 No.3

The stereoscopic vision system is the algorithm to obtain the depth of target object of stereo vision image. This paper presents an efficient disparity matching method using nagao filter, octree color quantization and dynamic programming algorithm. we describe methods for performing color quantization on full color RGB images, using an octree data structure. This method has the advantage of saving a lot of data. We propose a preprocessing stereo matching method based on Nagao-filter algorithm using color information. using the nagao filter, we could obtain effective depth map and using the octree color quantization, we could reduce the time of computation.

건설 프로세스 경영의 경영효과 분석에 관한 연구

김영섭,황욱선,김용수,Kim, Young-Seop,Hwang, Ug-Sun,Kim, Yong-Su 한국건설관리학회 2008 한국건설관리학회 논문집 Vol.9 No.2

본 연구는 프로세스 경영에 의한 건설업의 경영효과 분석을 목적으로 수행되었다. 즉 건설업 분야에서의 프로세스 경영에 대한 필요성과 지속적인 경영관리의 효율성 향상을 위해 수행되었다. 다음으로 본 연구의 수행을 위한 과정을 설명하면 다음과 같다. 첫째 프로세스경영에 대한 이론적인 개념을 정리하고, 둘째, 유사산업분야에서 기 개발된 프로세스경영 성숙도 모델을 건설업에 적용할 수 있도록 건설업 프로세스경영 성숙도 모델을 제시하였다. 셋째, 프로세스경영이 영향효과를 검토하기 위해 가설을 세우고, 설문조사 통하여 검증하였다. 상기와 같은 과정에 따라 도출한 결론을 요약하면 다음과 같다. 프로세스 IT 연계기술전략 실행에서는 유의적으로 분석되었으며, 자원관리체계에서는 비유의적으로 분석되었다. The purpose of this study Management Effectiveness Analysis of Construction Process Management. This study is to analyze the effects that process management has in outcome has been done by setting 5 elements of process management system as independent variables, making hypothesis, surveying and analyzing. The results of this analysis showed that process management operation level can be measured effectively through the application of Business Process Management System, and Process management strategy is found out to be contributed to improving strategy operation support, process management and IT connection technology. By seeing this research result, through optimally applying 'process management' in construction industry, process management can be used to improve the construction industry's potential competitiveness by improving effectiveness in works in the fields of strategy operation, process management, IT connection etc. So, by practically verifying the effectiveness of 'process management system', the purpose of this research is to come up with the necessity and the development of 'process management system' in construction industry.

회원작품 - 동일복지문화원

김영섭,Kim, Young-Seop 대한건축사협회 1996 建築士 Vol.1996 No.12

단일 엣지를 이용한 깊이 정보에 관한 연구

김영섭,송응열,Kim, Young-Seop,Song, Eung-Yeol 한국반도체디스플레이기술학회 2010 반도체디스플레이기술학회지 Vol.9 No.2

An implementation of modified stereo matching using efficient belief propagation (BP) algorithm is presented in this paper. We do recommend the use of the simple sobel, prewitt edge operator. The application of B band sobel edge operator over image demonstrates result with somewhat noisy (distinct border). When we adopt the only MRF + BP algorithm, however, borders cannot be distinguished due to that the message functions in the BP algorithm is just the mechanism which passes energy data to the only large gap of each Message functions In order to address the abovementioned disadvantageous phenomenon, we use the sobel edge operator + MRF + BP algorithm to distinguish the border that is located between the similar message data. Using edge information, the result shows that our proposed process diminishes the propagation of wrong probabilistic information. The enhanced result is due to that our proposed method effectively reduced errors incurred by ambiguous scene properties.

NFC 기반 자전거 무인 대여 시스템 설계

김영섭(Kim Young Seop),유현주(Yoo Hyu Joo),김종민(Kim Jong Min),정민수(Jung Min Soo) 한국통신학회 2013 한국통신학회 학술대회논문집 Vol.2013 No.1

사천바다목장해역 어류군집의 변동특성

김영섭 ( Young Seop Kim ),김정년 ( Jung Nyeon Kim ),오택윤 ( Tak Yoon Oh ),최광호 ( Kwang Hoo Choi ),이동우 ( Dong Woo Lee ),차형기 ( Hyung Ki Cha ),최정화 ( Jung Hwa Choi ) 한국어업기술학회 2010 수산해양기술연구 Vol.46 No.4

블록 암호화 알고리즘의 부채널 공격에 대한 분석

김영섭(Young-Seop Kim),최재학(Jae-Hak Choi),김연민(Yeon-Min Kim),박인호(In-Ho Park) 대한전자공학회 2016 대한전자공학회 학술대회 Vol.2016 No.6

A performance of the IoT(Internet of Things) device is limited in the CPU, memory and so on. The limited IoT device is required to use these cipher algorithms such as AES(Advanced Encryption Standard), LEA(Lightweight Encryption Algorithm). However, these cipher algorithms have a disadvantage that vulnerable to side-channel attack. Therefore, this paper describes the cipher algorithms and the analysis of the power in side-channel attack. Also this paper suggests for the corresponding robust method of the side-channel attack.

불균형 트리 구조를 이용한 3차원 의료 영상 압축

김영섭(Kim Young-Seop) 한국산학기술학회 2006 한국산학기술학회논문지 Vol.7 No.4

이 논문은 3차원 손실 정수 웨이브릿 변환을 이용한 손실 의료 영상 압축에 대한 방법을 보여준다. 또한 의료영상에 3차원 불균형 트리 웨이브릿 분할법과 3차원 불균형 수평단면상 의존성 트리를 이용한 불균형 트리 구조 알고리즘을 제공 한다. 그리고 3차원 웨이브릿 분할법에서 정수 웨이브릿 필터들을 이용한 리프팅 방법을 보여준다. 여러 정수 필터들과 16개의 코딩유닛 수를 이용하여 의료영상을 우리의 알고리즘으로 만든 인코더를 이용하여 테스트를 했습니다. 코딩 유닛 수 16 개를 사용하여 전에 사용 되었던 방법인 전체 영상 코딩 유닛에 비해 코딩 지연을 줄일 수 있었고, RAM의 용량도 줄일 수 있었다. 또한 불균형의 트리 구조를 사용하여 2차원을 3 레벨 이상으로 사용할 수 있어서, 부호화와 복호화에서 각 픽셀에서 트리의 길이를 마음대로 조정할 수 있는 결과가 되었다. 결론적으로 사이즈가 적은 코딩 유닛과 불균형 웨이브릿 변환을 의료 영상에 적용하여 전에 했던 코딩방법보다도 정수 필터 인 1(5,3) 필터 에서는 더욱더 좋은 결과를 보여 준다. This paper focuses on lossy medical image compression methods for medical images that operate on three-dimensional(3-D) irreversible integer wavelet transform. We offer an application of unbalanced tree structure algorithm to medical images, using a 3-D unbalanced wavelet decomposition and a 3-D unbalanced spatial dependence tree. The wavelet decomposition is accomplished with integer wavelet filters implemented with the lifting method. We have tested our encoder on volumetric medical images using different integer filters and 16 coding unit size. The coding unit sizes of 16 slices save considerable dynamic memory(RAM) and coding delay from full sequence coding units used in previous works. If we allow the formation of trees of different lengths, then we can accomodate more transaxial scales than three. Then the encoder and decoder can then keep track of the length of the tree in which each pixel resides through the sequence of decompositions. Results show that, even with these small coding units, our algorithm with I(5,3)filter performs as well and better in lossy coding than previous coding systems using 3-D integer unbalanced wavelet transforms on volumetric medical images.