방향적응적인 연속 비율 실시간 영상 보간 방식 : 방향별 가우시안 필터를 사용한 연속 비율 지원 영상 보간 필터

유윤종(Yoonjong Yoo),전신영(Sinyoung Jun),비벡 마이크(Vivek Maik),백준기(Joonki Paik) 한국HCI학회 2009 한국HCI학회 학술대회 Vol.2009 No.2

방향 적응적인 저대역 통과 필터를 사용한 보간 방식은 화소의 방향성에 따른 적응적인 필터 처리를 통하여 가로 세로의 비율이 다른 보간을 수행할 시 생기는 영상의 왜곡을 최소화 한 방식이다. 본 방식은 하드웨어 적인 구현에 적합하도록 설계 되었으며, 영상의 보간 시사용하는 저대역 통과 필터 처리 강도의 조절이 용이하여 최종 영상의 선명도를 쉽게 변경 할 수 있다는 장점을 가지고 있다. 적은 연산량과 화질의 변경이 용이 함으로 인하여, 본 기술은 디지털 카메라, CCTV, 평판 디스플레이 장치 등 영상 보간 기술이 필요한 영상 장비에 적용될 수 있다. A real-time, continuous-scale image interpolation method is proposed based on bi-linear interpolation with directionally adaptive low-pass filtering. The proposed algorithm has been optimized for hardware implementation. The original bi-linear interpolation method has blocking artifact. The proposed algorithm solves this problem using directionally adaptive low-pass filtering. It can also solve the severely problem by selection choosing low-pass filter coefficients. Therefore the proposed interpolation algorithm can realize a high-quality image scaler for various imaging systems, such as digital camera, CCTV and digital flat panel display, to name a few.

색상 분포 분석을 통한 자동 백색 조정 방법

유윤종(Yoonjong Yoo),조태호(Taeho Cho),정회인(Hweihn Chung),김효주(Hyoju Kim) 대한전자공학회 2010 대한전자공학회 학술대회 Vol.2010 No.6

The existing Auto White Balance(AWB) method has a problem at taking a single color object. Therefore, Auto Tracking White(ATW) method solve this problem using stop operating technique at the outside of interesting light temperature. But ATW method doesn"t react the consist of objects which has the outside interesting region light temperature. The proposed algorithm solve this problem using color distribution analysis.

이름을 밝히는 것인가? 거부하는 것인가?: ‘신의 비밀스런 이름’에 비추어본 출애굽기 3:14

유윤종 ( Yoo Yoonjong ) 한국서양고대역사문화학회 ( 구 한국서양고대사학회 ) 2016 서양고대사연구 Vol.46 No.-

이 글은 이집트 및 구약성서에 나타난 신의 비밀스런 이름이라는 주제에 비추어 출애굽기 3:14에 표현된 하나님의 이름에 관한 논쟁을 재해석한다. 신의 비밀스런 이름이라는 주제에서 보아 출애굽기 3:14의 □□□는 하나님의 이름을 밝히려는 것보다는 이름을 밝히기를 거부하는 것으로 해석하는 것이 더 적절하다고 결론 내린다. 더 나아가 이 해석을 본문에 대한 YHWH에 대한 언어유희적 측면에서 가지는 의미를 찾는다. This paper seeks to reexamine a serious expression □□□, from Exodus 3:14 in the light of the ‘divine secret name’ motif commonly scattered across ancient Egyptian mythology. The verse has been debated hotly in scholarly circles because it is assumed that it would provide the answer to a debate about an original derivation of YHWH (Tetragrammaton), which is still under discussion. This study is developed upon an analysis of the context of Exodus 3 (chapter 2) and previous studies which are grouped according to those who accepted the verse as revealing YHWH’s name and the others who regarded it as refusal to reveal [not revealing?](chapter 3). It investigates the theme of the divine secret name in an Egyptian myth called ‘The Legend of Isis and the Name of Re’ and two other biblical verses (Gen 32:29; Judg 13:18) (chapter 4). It has been observed that the theme of divine secret names is displayed widely in Egypt and mythologies related to names have been heavily developed. In Egyptian myth, the secret names of the supreme god Ra or Amun is never revealed. It is noteworthy that the theme of divine secret names plays a significant role in constituting the hierarchy of the divine world order in Egypt. A higher god has a secret name by which he or she controls a lower god, and thus a lower god tries to discover the secret name of a higher god. Between the two gods, plot unfolds and struggles occur. The Bible does not accept such a concept in YHWH theology fully, but the motif of a divine secret name is still partly contained. In two theophoric contexts in Genesis 32:29 and Judges 13:18, YHWH did not reveal his true name. Thus it is better interpreted that God refused to reveal his true name. It is believed that God is not controled by such magical use of his name. Accordingly it is concluded that the expression □□□, in Exodus 3:14 is an indirect refusal to reveal YHWH’s name. Instead, it is suggested that the expression needs to be interpreted as a wordplay on YHWH symbolizing the divine presence with Moses and the Israeli people. This study does not resolve all matters regarding Exodus 3:14, but it is proposed that the theme of divine secret names would be added evidence proving the theory of the refusal to reveal YHWH’s name.

출애굽기 1:1-15:21에 나타난 ‘이름’의 문학적 및 신학적 의미

유윤종(Yoonjong Yoo) 대한성서공회 2017 성경원문연구 Vol.- No.41

Names play a very important role in the literature of ancient Near East. It had been believed that names have the power to make true its nature and characters. Thus having the authority to call names means to have the power to control the power of people or deities represented in their names. According to Egyptian mythology, divine order is controled by hidden names of superior gods to inferior ones. The English book name of Exodus is called Shemot (Names) in the Jewish tradition in accordance with the second word of Exodus 1:1. This paper purposes to show how names in Exodus 1:1-15:21 are presented, and pursues to interpret the literary and theological significance of names according to the general concept of names in ancient Near East. Methodologically, I will take synchronic approach by which does not raise how the texts had been developed. It is noteworthy that on the one hand, names are hidden, but are revealed in Exodus 1:1-15:21 on the other. First of all, I’ve done exegetical work with texts in which personal or divine names are revealed and hidden, and classified texts in which names are revealed as follows: ancestors from Canaan (1:1-7), two midwives (1:15), Moses (2:10), Moses’s wife and son (2:16-22), YHWH (6:2-5), Moses’s parents and brother (6:16-20), and YHWH (15:3). The list of hidden names are as follows: Pharaoh (1:8, 11, 15, 17, 18, 19, 22), Moses’ parents and sister (2:1-10), divine name Ehye (3:14), the Sun god Ra (10:10, 12-14, 21-23), and Egyptian gods in ten plagues (7:14-10:29; 12:12). It is maintained that the motif of revealing and hidden names in Exodus 1:1-15:29 has literary and theological significance. Literary significance can be summarized as follows: 1) The name motif supports that the first part of Exodus is 1:1-15:29. 2) The divine name YHWH plays a key role: YHWH not revealed (1:1-2:22), YHWH alluded (2:23-6:1), YHWH revealed (6:2-14:31), and YHWH proved (15:1-21). 3) Moses’s name alludes future redemption in the Reed Seas. It also has the following theological implications: 1) In 1:1-2:22, YHWH seems to be hidden, but he works secretly to protect the people of Israel. 2) In 2:23-6:1, YHWH appears to Moses without revealing his name, but alluded his assurance of being with Moses. 3) In 6:2-14:31, YWHH is revealed in the struggle with Pharaoh, and destroyed Pharaoh with ten plagues and the great victory in the Reed Seas. 4) In 15:1-21, the power of the name YHWH is proved. It is concluded that knowing the name YHWH is to know the nature and character of YHWH. The name motif occurs mainly in the first part of the book of Exodus, but in the second (15:22-18:27) and the third parts (19:1-40:38), Israelites learn to know how to live with the name YHWH and to serve the name YHWH. Accordingly it is suggested with certainty that the name ‘Shemot’ be the most appropriate name for the book of Exodus.

웨이블릿 변환을 이용한 영상복원의 물결현상 제거 방법

윤진영(Jinyoung Youn),유윤종(Yoonjong Yoo),전신영(Sinyoung Jun),신정호(Jeongho Shin),백준기(Joonki Paik) 대한전자공학회 2008 電子工學會論文誌-SP (Signal processing) Vol.45 No.6

디지털 영상이 멀티미디어의 핵심 매체로 자리를 잡게 되면서 영상의 열화요인을 제거하여 원래의 품질에 가깝게 개선하는 영상복원기술의 활용분야가 더욱 늘어나고 있다. 그러나 영상복원을 수행할 때 영상의 열화(degradation)가 선형공간불변이라고 가정하기 때문에 주파수영역에서 영상복원을 수행하면 그 결과 에지와 같이 밝기값의 변화가 큰 영역 주변에서 물결현상(ringing)이 나타나는 단점이 있다. 본 논문은 물결현상 제거를 위해 새로운 적응적 후처리 필터링 방법을 제안한다. 제안하는 알고리즘은 웨이블릿 변환을 사용하여 영상을 해석하고 에지맵을 추출하고 영역을 나누어 에지영역과 물결현상을 검출한 후 이를 쌍방향필터(bilateral filter)를 이용해 제거한다. 실험결과를 통해서 제안하는 방법이 효과적으로 물결현상을 제거하는 동시에 중요한 에지를 보존할 수 있음을 확인할 수 있다. Digital image find own level core media in multimedia as image restoration technology fields, which remove degradation factor for image enhancement, have been growing. Linear space-invariant image restoration algorithms often introduce ringing artifacts near sharp intensity transition areas. This paper presents a new adaptive post-filtering algorithm for reducing ringing artifact. The proposed method extracts an edge map of the image using wavelet transform. Based on the edge information, ringing artifacts are detected, and removed by an adaptive bilateral filter. Experimental results show that the proposed algorithm can efficiently remove ringing artifacts with edge preservation.

적응적 움직임 추정영역 선택을 사용한 영상안정화 성능개선

김동균(Donggyun Kim),이진희(Jinhee Lee),유윤종(Yoonjong Yoo),백준기(Joonki Paik) 대한전자공학회 2008 電子工學會論文誌-SP (Signal processing) Vol.45 No.5

본 논문은 적응적 움직임 추정영역 선택을 사용한 디지털 영상안정화의 성능개선에 대한 새로운 방법을 제시한다. 움직임 추정을 위한 후보영역을 선정하고 그 중에서 제안하는 두 가지 방법인 다중 영상 참조와 윤곽에너지 판별을 통해 최종 움직임 추정영역을 선택한다. 정해진 영역에서 움직임을 추정하고 보상한다. 실험을 통해 제안하는 방법이 영상안정화의 성능을 향상시킴을 보인다. In this paper we propose a novel method which improves digital image stabilization performance using adoptive selection of motion estimation area. Candidate area for motion estimation is decided and through two processes, multi image reference and edge energy distinction, final motion estimation area is selected. Then Motion estimation and compensation is following in selected area. Experimental results show that proposed method improves performance of digital image stabilization.

연료분사장치를 이용한 PTC Heater 성능실험에 관한 연구

김준수(Joonsoo Kim),김홍수(Hongsoo Kim),박주석(Jooseok Park),유윤종(Yoonjong Yoo),김시경(Sikyoung Kim),안영수(Youngsoo Ahn) 한국자동차공학회 2002 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2002 No.5_3

The purpose of this study is to evaluation the fuel evaporntion by the injection of the fuel to the high tempernture surface heated of PTC Heater for early fuel evaporntion at the cold start stage in gasoline engine. In order to do this, we checked electrical control injection system and then made the experimental equipment so that tested the performance of PTC Heater. The injection angle for MPIS was 24˚and the avernge droplet diameter was 300㎛. The heater will be installed 70mm below the injector, so that the area of the heated zone should be wider than that of a circle with 30mm diameter. During the heating experiments of the injected fuel, the best condition for efficient evaporntion was drawn, that is, Curie temperature of 180˚C and the impinging angle of 90˚.

다점연료분사방식을 위한 연료조기증발용 PTC Heater에 관한 연구

김준수(Joonsoo Kim),김홍수(Hongsoo Kim),박주석(Jooseok Park),유윤종(Yoonjong Yoo),김시경(Sikyoung Kim),안영수(Youngsoo Ahn) 한국자동차공학회 2002 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2002 No.5_3

We studied the acquistion of basic data through the purchase of the Early Fuel Evaporator PTC Heater by Texas Instrument in order to manufacture teclmology of PTC Heater for Early Fuel Evaporator in multi point injection system. In order to do this, we investigated to the outward shape of the PTC Heater for Early Fuel Evaporation in multi point injection and then to the size, electrical properties, microstructural characterstics, chemical analysis for the PTC Heater element which was pulled out from PTC Heater for Early Fuel Evaporation.

다점분사방식 연료조기증발용 PTC Heater 제조에 관한 연구

김준수(Joonsoo Kim),김홍수(Hongsoo Kim),박주석(Jooseok Park),유윤종(Yoonjong Yoo),김시경(Sikyoung Kim),안영수(Youngsoo Ahn) 한국자동차공학회 2002 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2002 No.5_3

The purpose of this study is to develop the PTC Heater element for early fuel evaporator in Multi point injection system in order to reduce the harmful exhaust gas at the cold start stage. In order to do this, we fabricated three type of PTC Heater element, the Curie temperature of which were 80℃, l20℃, 180℃ and then checked the electrical property. The resistances of the three type of PTC Heater element, the Curie temperature of which were 80℃, 120℃, 18 0℃ were 3.12Ω, 10.7Ω, 3.85Ω and their resistance increase ratio were 4.07 order, 4.23 order, 4.43 order, respectively.

탄소섬유를 이용한 연료전지용 가스확산층(GDL) 제조연구

이영주(Young-Ju Lee),이동철(Dong-Chul Lee),김현욱(Hyunuk Kim),송광섭(Kwang Sup Song),유윤종(Yoonjong Yoo) 한국신재생에너지학회 2012 한국신재생에너지학회 학술대회논문집 Vol.2012 No.11