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흑백사진관련 디지털방식과 아날로그 방식의 출력물에 대한 감광재료학적 연구
하동환,진필훈,송근목,조용훈 한국사진학회 2001 AURA Vol.8 No.1
"The rise and fall of these civilizations resulted from repeating 'patterns in which similar 'challenges' were met with similar 'responses' ." - Arnold Joseph Toynbee; 1889-1975 It is true that human beings have developed without a break. Especially like today which we call the information age, we are investing our time and effort to learn something new and sometimes force to do it to survive in jungle. New theories, new techniques, and new ways of living are tend to help us living better than before, however sometimes those are imposing a heavy burden on a person who are not familiar with them. Without a doubt, there is a huge revolution is going on in photography area without exception. Since it was first invented in 1839, the basic formality of producing a photography has not been changed until the digital concept was introduced. The transition from analog information to digital one can fulfill the purpose of photography in many application area especially when it uses with Internet and telecommunication. This thesis is emphasized on 'output' in digital imaging process because it is the one that most of photographers are paying great attention to. We tried to compare the digital outputs with traditional photographic output methods to anticipate the possibilities of 'Digital Darkroom'- the upcoming revolution !
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하동환,노을,진필훈,이성원,심현준 한국사진학회 2002 AURA Vol.0 No.9
All devices that are used in digital Image manipulation like digital still cameras, scanners, monitors and printers each have their own transfer fuction or transmission characteristics. By those reasons, there is a lot of confusion around issue of acquiring, stroring and displaying digital image properly. CMS, Color management System, is started with the basic question How do we make the color on the monitor match what someone else sees on their monitor? With good device profiles and process control, color you can see on screen and in proofs is extremely representative of what you will get with the fianl output. In this thesis, we tried to apply and test CMS to the circumstances that we are involved because since most of research on CMS has been performed in abroad so it could be different than our devices and situation. The final goal through this thesis is save time, save money and better communication through proper applying of Color Management System.
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하동환,조두희 영상예술학회 2006 영상예술연구 Vol.0 No.8
본 논문은 단일 카메라로 촬영된 한 장의 2차원 사진 영상으로부터 3차원 정보를 복원함으로써 초점 위치를 임의로 변환하는 방법을 제시한다. 일반적으로 2차원 평면 이미지를 이용하여 3차원 정보를 얻기 위해서는 단일 카메라를 사용하는 방법과 두 대 이상의 카메라를 사용하는 방법이 있다. 본 논문은 단일 카메라를 이용하는 방법을 위주로 설명한다. 단일 카메라를 사용하여 3차원 정보를 얻을 경우 해상도가 급격하게 낮아지는 문제점을 가지고 있다. 3차원 영상정보를 얻어서 초점 위치의 변환을 목적으로 할 경우, 기존의 결과물의 해상도는 일반적으로 1/10이하로 낮아진다. 본 논문이 제시하는 방법은 이와 같은 문제점을 보안하여 단일 카메라 사용 시에도 해상도의 유실을 최소화함과 동시에 초점 영역의 검출을 가능하게 하였다. 이 방법은 단일 카메라에서 촬영된 최초 영상의 초점면으로부터 시작하여 역 추적하는 방식으로 공간의 깊이 정보를 찾아낸다. 이를 위하여 카메라는 촬영 당시의 공간정보를 기록하게 되는데 기존의 광학 렌즈를 사용하는 카메라는 이것이 불가능하다. 이러한 문제를 해결하기 위하여 본 논문에서는 일반적인 렌즈를 사용하지 않았으며, 이 목적에 적합한 렌즈를 제작하여 사용하였다. 이렇게 촬영된 영상 데이터는 제시하는 컴퓨터 프로세스를 이용하여 깊이 정보에 따라 초점면을 변화시킬 수 있으나 일반적인 정 사진으로는 사용할 수 없는 제한이 따른다.
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렌티큘러 렌즈시트(Lenticular Lens Sheet)를 이용한 3차원 입체사진 제작에 대한 연구
하동환,진필훈,이성원 한국사진학회 2003 AURA Vol.0 No.10
Photography born to the ambition of seeing and developed by mechanical civilization is sufficiently satisfying the desire of seeing. With creating the splendor visual culture, photography extends a field to the joining of digital technology. In spite of a short history, digital technology has been included in the area of photography. Nowadays we don't have to divide digital photography into analog photography. The photography will be evolved to 3D images and those can even have a motion. Therefore we choose the lenticular for expressing all those goals. The lenticular which is possible to make 3D image and motion picture has the superiority of attention and information delivering power to a still image. This project the manufacturing of lenticular image used by digital and analog method studies the extending possibility of photography which will come true near the future. What we want to this project is to confirm the extent of lentucular's manufacturing and limit of thesedays' photography. Lenticular image is one of tried methods making 3D-photography or motion pictures over limitations of 2D-image such as Parallax Barrier or Integral Photography. Lentucular image is increasingly being recognised as its superiority to high attention rate and delivering power. In order to enjoy lenticular image other supporting materials are not necessary. This article has studied lenticular effects and manufacturing process. Specially, we have compared the two forms of printing such as digital and analog. We find applications that will be suitable for each process.
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멀티이미지들의 동시재현을 위한 다시점 스크린 제작 연구
하동환,이성원,이정범,박성래,성현하 한국사진학회 2004 AURA Vol.0 No.11
A photograph is a kind of compound outcome made by people’s different sensitivity and scientific knowledge such as Optics, Physics and Chemistry. This outcome pursues ‘effective communication’like photography does. So what is communication? Communication is defined as spiritual and psychological interaction using languages, gestures and pictures, and it is composed of ‘Sender’, ‘Receiver’, ‘message’, and ‘channel’. Traditionally, the communication was just one-way system; the ‘Sender’ gave a ‘Message’ to the `Receiver’ through the ‘Channel’. Recently, however, the way of the communication is changing on art and culture included photography. The division of the ‘Sender’and ‘Receiver’has been ambiguous, so they give and receive messages each other interactively. Arrival of this sort of new communication paradigm can be used for various intelligence media, and it contents the desire of art and cultural parts who seek new and unique things.
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