• 방송공학회논문지
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• 제14권5호
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• pp.601-615
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• 2009

본 논문에서는 3D-Video에서 가상시점 영상을 생성하는데 필요한 깊이정보 맵의 효율적인 부호화 방법을 제안한다. 가상시점 영상은 실사 영상의 깊이정보 맵을 이용한 시점보간(View Interpolation) 방법으로 생성된다. 일반적으로 깊이정보 맵의 부호화에는 H.264 등의 자연영상에 대한 동영상 부호화 방법을 그대로 적용하고 있는데, 이러한 부호화 방법은 깊이정보 맵의 특성을 고려하지 않은 방법이다. 따라서 본 논문에서는 깊이정보 맵의 영상특성을 고려하여, 맵 정보를 그레이 코드로 변환한 후 비트평면 단위로 부호화하는 방법과, H.264 부호화 방법을 블록단위로 적응적으로 선택하여 부호화하는 방법을 제안하였다. 실험결과로서 제안하는 방법의 성능은 H.264 부호화 방법에 비하여, BD-PSNR이 평균 0.5dB 향상되고, BD-rate는 평균 7.43% 감소되어 부호화효율이 우수함을 확인할 수 있었다. 또한 복원된 깊이정보 맵을 이용하여 생성된 가상시점 영상 간의 비교에서 제안하는 방법이 H.264 부호화 방법에 비해 주관적 화질이 크게 향상된 것을 확인할 수 있었다.

• 한국가금학회지
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• 제26권1호
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• pp.43-50
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• 1999

The features of special brand eggs are growing more and more diverse and it is hard to draw a clear distinction between these and ordinary (no-brand) eggs. Special brand eggs range from those with objectively recognizable characteristics to those given only an unsubstantial product image and price differentials are among them great, too. The relation between product features and prices is unclear. Special brand eggs are the commodity whose characteristics are the vaguest of all livestock products. Farm's brand eggs produce a high profitability to producers is they are directly sold to consumers, by, for example, home-delivery service. But if they are sold to supermarkets, etc., producer's (poultry farmer's) income becomes lower by the amount of distributors' margin, reducing the profitability substantially. Thus how to increase the ration of retailing is important for farmers to secure a high profit. The sales strategies of poultry are the combination of two elements, that is, new product development (product differentiation) and creation of new market. But it is difficult for special brand egg producers to develop products with clear characteristics (use value) distinct form ordinary eggs and so these producers depend on the factors of appearance, such as the color of egg shells and package. Special brand eggs manage to keep their marketable value by the combination of the few product features and product image. Thus NB eggs from feed producers have a great market-ability since they can take advantage of the power of patents and TV commercials. However, market differentiation affects profitability much more than product features and price gaps are very wide between directly sold and wholesaled eggs. The producers of special brand eggs have come to the turning point where they have to decide whether they will content with being the subcontractors for NB and PB eggs or they will continue to keep their independence in production and marketing.

• 한국실내디자인학회논문집
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• 제14권5호
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• pp.106-113
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• 2005

New images percolate through human consciousness by the media such as movies, TV programs, and brilliant advertisements. These images reproduce new ' things ' throughout the ' semantic processes ' by those who experience and recognize them. Alvin Toffler describes it as the ' information bomb ' and ' image fragments ' in his talk about the new paradigm of information-oriented era. The increasing number of images and their accelerating rate of appearance imply that images become more momentary, and are evidence that they are transforming entire human life and consciousness. Such awareness means a lot to a designer. Especially, the subject that how modern space-dominating images are related to the structure and materials constituting the space and communicate with human mind will be an important factor in establishing the human-space relationship in the future. Furthermore, the present age overspread with various medium is not the only one privileged of the images that exist within space. They are the results of continuous expansion of existing images, and also process of evolution of space powered by the fusion of images and digital media. Imagified space is a boundary layer of Cyberspace, and the space itself becomes an interface by human recognition and participation. Now, the functional classification of spaces such as ' office, ' ' cafe, ' and ' school ' is meaningless. Whatever it may be, the function of a space is defined by the information it interfaces, and therefore it becomes an interface to information through a large number of images. Based on this idea, we will observe the imagificaiton of space in the form of discussion, and from that, try to understand the phenomenon through the real world examples.

• 한국콘텐츠학회논문지
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• 제11권12호
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• pp.649-657
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• 2011

본 연구는 여배우의 몸에 대한 뉴스의 이데올로기적 함의를 알아보기 위하여 고 장자연 자필편지사건을 특종 보도한 SBS TV 8시 뉴스를 중심으로 텍스트와 이미지를 분석하였다. 뉴스의 이야기구조는 편지 사본에서 내용을 발췌하여 술접대 성상납, 접대를 강요당한 또 다른 여성 연예인, 리스트, 복수, 자살 등 선정 적인 방향으로 전개되고 있었다. 한편 '무명의 신인 여배우'로 명명된 그녀는 여성이자 신인, 무명으로 낮은 계급에 위치하고 있었으며, 권력을 지니지 못한 여성의 몸은 권력을 가진 자들에 의해 소비되고 물화되는 것으로 나타났다. 뉴스에서 여배우는 순백의 여신이자 귀여운 소녀, 섹시한 여성으로 재현되는 대중문화 속의 이미지를 보여주며, 이 때 '몸'은 상품가치의 근간이자 상품이 된다. 그러나 이러한 몸은 본질과 분리되고, 자신의 몸으로부터 소외당한 여성은 죽음으로 저항하지만 '몸의 부재'로 끝난다. 남성중심주의적, 소비 지향적, 계급주의적 이데올로기가 반영된 뉴스에서 한 여배우의 몸은 철저히 소비되고, 동시에 소외되는 것을 알 수 있다.

• Transactions on Control, Automation and Systems Engineering
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• 제2권4호
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• pp.285-297
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• 2000

One of the research objectives in the area of multimedia human-computer interaction is the application of artificial intelligence and robotics technologies to the development of computer interfaces. This involves utilizing many forms of media, integrating speed input, natural language, graphics, hand pointing gestures, and other methods for interactive dialogues. Although current human-computer communication methods include computer keyboards, mice, and other traditional devices, the two basic ways by which people communicate with each other are voice and gesture. This paper reports on research focusing on the development of an intelligent multimedia interface system modeled based on the manner in which people communicate. This work explores the interaction between humans and computers based only on the processing of speech(Work uttered by the person) and processing of images(hand pointing gestures). The purpose of the interface is to control a pan/tilt camera to point it to a location specified by the user through utterance of words and pointing of the hand, The systems utilizes another stationary camera to capture images of the users hand and a microphone to capture the users words. Upon processing of the images and sounds, the systems responds by pointing the camera. Initially, the interface uses hand pointing to locate the general position which user is referring to and then the interface uses voice command provided by user to fine-the location, and change the zooming of the camera, if requested. The image of the location is captured by the pan/tilt camera and sent to a color TV monitor to be displayed. This type of system has applications in tele-conferencing and other rmote operations, where the system must respond to users command, in a manner similar to how the user would communicate with another person. The advantage of this approach is the elimination of the traditional input devices that the user must utilize in order to control a pan/tillt camera, replacing them with more "natural" means of interaction. A number of experiments were performed to evaluate the interface system with respect to its accuracy, efficiency, reliability, and limitation.

• 대한전자공학회논문지SP
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• 제46권5호
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• pp.40-47
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• 2009

시간영역 필터와 공간영역 필터를 연결한 움직임 적응적 동영상 잡음 제거기법을 제안한다. 움직임 적응적 시간영역 필터에서는 전처리 공간영역 필터를 활용하여 잡음에 강인한 움직임 검출을 수행하고, 움직임의 양에 따라 적응적으로 필터링 강도를 조절한다. 동영상에 내재된 시간적 연관성을 충분히 활용하기 위해, 잡음이 있는 입력 영상은 시간영역 필터에 의해 처음으로 처리된다. 따라서 시간적 연관성이 큰 동영상에서, 영상의 세밀한 부분을 잘 보존하며 잡음을 제거할 수 있다. 움직임 검출을 위해 사용되는 전처리 공간영역 필터와는 다르게, 후처리 공간영역 필터는 시간영역 필터의 강도와 전처리 공간영역 필터에서 얻어진 공간영역 자기유사성 탐색 결과를 바탕으로 공간영역 필터링을 수행한다.

• 복식문화연구
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• 제16권2호
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• pp.382-396
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• 2008

The purpose of this study is to analyze the transition of glamour style expressed in modern fashion throughout the history. The glamour style in modern fashion was categorized into five periods which are Hollywood glamour(H), Feminine glamour(F), Rich glamour(R), Decadent glamour(D), and Trash glamour(T). These categories were analyzed and compared in the viewpoint of aesthetic values deduced on the previous study. As a method of analysis, literature study and case study through the publications in aesthetics, history and preceding theses were used. The results of analysis are: Ostentatious luxury was suggested by extravagance of the movie star in H, the splendid American lifestyle in F, conspicuous consumption in R, fin de siecle bad taste in D and self-assured exposure in T. Mysterious idolatry was studied as exaggerated goddesshood of the movie star in H. It was expanded to celebrities including fashion models, television actresses, pop singers and young couture designers in the other periods. Artificial sensuality was originated from the femme fatale image of the courtesan as well as the traditional femininity of Victorian era in H. It was developed through exaggerated hourglass silhouette of the wife dressing in F. But an aggressiveness in R, a hyper-sexual femme fatale in D, an independent and defiant image of the showgirl in T were observed. Playful queerness stood out clearly by the fin de siecle phenomena. Though it was embodied in sexual perversive subculture, it emerged as hi fashion by young designers in the late R and became a crucial aesthetic value throughout D and T. It is more connected with the origins of glamour which arouses sexual ambiguity, crudity, aggressiveness and death. The continuity and discontinuity of the glamour style based on the theory of 'linked solution' were also analyzed.

• 방송공학회논문지
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• 제9권4호
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• pp.402-410
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• 2004

최근 HDTV 및 3차원 TV의 연구 개발에서 실감 방송에 대한 관심이 증가되고 있다. 실감 방송은 콘텐츠 생성, 제작, 압축, 전송 및 디스플레이까지 복합적이고 종합적인 시스템으로 구성된다. 이러한 분야에서는 방송을 통해 사용자에게 전송되는 실감 콘텐츠의 종류를 우선적으로 고려해야 한다. 콘텐츠에 따라 제작 단계에서 새로운 제작 기능을 필요로 하고, 콘텐츠 압축 기술의 연구의 필요성이 요구되며, 또한 전송 시스템의 설계 및 디스플레이 단말기들의 연구 개발이 필요하다. 본 논문에서는 향후 실감 방송에서 제공할 수 있는 실감 콘텐츠들을 소개하고 이에 따른 제작 방법을 제안한다. 제안하는 실감콘텐츠는 입체 다중뷰 영상, 객체기반 입체 영상, 깊이지도기반 합성 및 입체 영상과 그래픽 영상 합성으로 구성되며, 각 콘텐츠마다 제작 소프트웨어를 개발하였다. 또한, 실험 결과는 제작된 콘텐츠들이 사용자에게 입체감, 몰임감 및 현실감이 제공된다는 것을 보여준다.

• 대한의용생체공학회:의공학회지
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• 제35권5호
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• pp.151-159
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• 2014

Computed tomography (CT) is one of the most widely used medical imaging modality. However, substantial x-ray dose exposed to the human subject during the CT scan is a great concern. Region-of-interest (ROI) CT is considered to be a possible solution for its potential to reduce the x-ray dose to the human subject. In most of ROI-CT scans, the ROI is set to a circular shape whose diameter is often considerably smaller than the full field-of-view (FOV). However, an arbitrarily shaped ROI is very desirable to reduce the x-ray dose more than the circularly shaped ROI can do. We propose a new method to make a non-circular convex-shaped ROI along with the image reconstruction method. To make a ROI with an arbitrary convex shape, dynamic collimations are necessary to minimize the x-ray dose at each angle of view. In addition to the dynamic collimation, we get the ROI projection data with slightly lower sampling rate in the view direction to further reduce the x-ray dose. We reconstruct images from the ROI projection data in the compressed sensing (CS) framework assisted by the exterior projection data acquired from the pilot scan to set the ROI. To validate the proposed method, we used the experimental micro-CT projection data after truncating them to simulate the dynamic collimation. The reconstructed ROI images showed little errors as compared to the images reconstructed from the full-FOV scan data as well as little artifacts inside the ROI. We expect the proposed method can significantly reduce the x-ray dose in CT scans if the dynamic collimation is realized in real CT machines.

• 한국엔터테인먼트산업학회논문지
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• 제14권2호
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• pp.41-50
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• 2020

본 연구는 연출자 및 감독에 의해 절제되는 콘티에 의해 분할된 연기에서가 아닌 프레임 속에 즉흥연기를 통해 배우의 감성과 템포 리듬이 분장한 롱샷의 연기와 풀샷 중심의 무대 연기가 내면적 서스펜스나 극 중 어떻게 표현되어 관객에게 전달할지 미적 반응을 분석 연구하고 연기 속에 나타난 서스펜스의 내면적 반응을 분석하여 극을 효과적으로 표현함에 도움 될 것을 목적으로 한다. 연기의 유형과 형식 그리고 매체는 앞으로도 더 다양해질 것이다. 그러나 다행히도 다매체시대에서 변하지 말아야 할 인간의 정신적 소양, 살아가는 동안 지켜야 할 정신들이 내면 깊이 숨어 있는 그 무엇인가의 희망이 아닌가 싶다. 본 연구는 연기가 가식이든 진실이든 그 형식이 중요한 것이 아니라 인간의 문화 정신세계의 풍요로움을 전달하는 전도사가 되는 것이라 하겠다. 향후 배우들의 만족 패턴과 연기 프로그램을 조사·연구하여 패러다임을 구축하고 연기의 효과적인 발전 방안을 분석, 연구, 돌출하고 그 방안을 토대로 연기의 근본적인 발전에 대한 방향을 제시하고자 한다.