• 제목/요약/키워드: reproduction of the image

검색결과 279건 처리시간 0.024초

오픈소스를 이용한 부산항 사진 아카이브의 구축 방안 (Digital Image Archiving Methodology on the Port of Busan: A Case Study Using an Open-Source Archiving Software)

  • 송정숙;허정숙;이예린
    • 한국기록관리학회지
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    • 제14권3호
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    • pp.127-151
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    • 2014
  • 이 연구에서는 '항구도시 부산'이라는 이미지를 형성하는 데 큰 역할을 한 부산항은 부산의 대표적인 로컬리티 공간이므로 부산항과 인근지역의 경관에 관한 사진, 엽서 등 이미지 기록을 중심으로 <부산항 사진 아카이브>를 구축하는 과정과 방법을 구체적으로 기술함으로써 로컬리티의 재현방법론을 확산하고 공유하고자 한다. 사진, 엽서 등 이미지 기록, 즉 사진기록의 특성을 문자 위주의 텍스트 기록과 비교하여 그 특성을 살펴보고, 이미지 기록의 대중 친화적인 특성에 주목하여 부산항에 관한 사진, 엽서 등의 이미지 기록을 수집하여 오픈소스 기록관리 소프트웨어 가운데 사진의 전시에 적합한 오메카(Omeka)를 이용하여 사진 아카이브를 실험적으로 구축해 보았다. 그 과정과 방법을 보면, 먼저 아카이브 구축 목적에 따른 개발 원칙을 세우고, 기록 수집을 위한 기초조사를 실시하였다. 부산항 관련 기록 소장기관과 개인소장가 등의 저작권 동의를 얻어서 원본 또는 파일을 수집하였다. 이후 수집한 기록은 더블린코어에 따라 기술하였으며, 시기에 따른 컬렉션을 구성하고 기록을 정리하였다. 부산항의 공간적 성격을 교통공간, 역사공간, 산업공간, 생활공간으로 구분하고, 11개 전시주제를 구상하였다. 전시의 보기로 교통공간의 부관연락선을 제시하였다.

고품질 색재현을 위한 오프셋인쇄 공정의 최적화에 관한 연구(II);제판과 인쇄공정을 중심으로 (The Optimization of Offset Printing Process for High Quality Color Reproduction(II);Platemaking and Presswork)

  • 김성수;강상훈
    • 한국인쇄학회:학술대회논문집
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    • 한국인쇄학회 2007년도 추계 학술논문 발표회
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    • pp.13-28
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    • 2007
  • Producing printing plate is essential progress to do offset printing. In this Film-less period, the more PS plate becomes extinct, the more the age of the Plate-Making of Exposure declines the place to stand. To do offset printing, the CTP (Computer to Plate) is taking a place of PS plate that covers speed, quality and economical problems. The biggest advantage of using CTP is that laser directly goes to the plate, thus there are no dust from the Plate-Making of Exposure. It is also theoretically able to print 200lpi${\sim}$300lpi as well as print 1751pi, because it has over 2400dpi resolution. The high quality printing could be available inside of the country, if printing machine keeps the optimum condition in offset printing. The CTP has many advantages, however there is a difficulty for the operators to preserve the equipment. The actual circumstance is that they cannot make a decision about how many dots need to be generated, and also it is necessary to know how to establish the setup at RIP on CTP to make the optimum condition output. If offset printing machine keeps the optimum condition, it would be able to print up to high quality printing however it is hard to comment what is the optimum condition for the printing machine. Anyone could say easy subjectively that machine is in the optimum condition, however it is objectively hard to estimate by number. In this research GATF / Plate Test target used to analyze the image and to make numerical value of the optimum condition of the CTP. It also used GATF / The sheep fed test printing 5.0 to know the density of the color representation, dot gain and gray balance for the optimum condition of the print machine. The purpose of this research is to represent the ISO 12647-2 which is the international standard with domestic printing equipments.

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고품질 색재현을 위한 오프셋 인쇄공정의 최적화에 관한 연구(II) - 제판과 인쇄공정을 중심으로 - (The Optimization of Offset Printing Process for High Quality Color Reproduction (II) - Platemaking and Presswork -)

  • 김성수;강상훈
    • 한국인쇄학회지
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    • 제25권2호
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    • pp.69-84
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    • 2007
  • Producing printing plate is essential progress to do offset printing. In this Film-less period, the more PS plate becomes extinct, the more the age of the Plate-Making of Exposure declines the place to stand. To do offset printing, the CTP (Computer to Plate) is taking a place of PS plate that covers speed, quality and economical problems. The biggest advantage of using CTP is that laser directly goes to the plate, thus there are no dust from the Plate-Making of Exposure. It is also theoretically able to print $200lpi{\sim}300lpi$ as well as print 1751pi, because it has over 2400dpi resolution. The high quality printing could be available inside of the country, if printing machine keeps the optimum condition in offset printing. The CTP has many advantages, however there is a difficulty for the operators to preserve the equipment. The actual circumstance is that they cannot make a decision about how many dots need to be generated, and also it is necessary to know how to establish the setup at RIP on CTP to make the optimum condition output. If offset printing machine keeps the optimum condition, it would be able to print up to high quality printing however it is hard to comment what is the optimum condition for the printing machine. Anyone could say easy subjectively that machine is in the optimum condition, however it is objectively hard to estimate by number. In this research GATF / Plate Test target used to analyze the image and to make numerical value of the optimum condition of the CTP. It also used GATF / The sheep fed test printing 5.0 to know the density of the color representation, dot gain and gray balance for the optimum condition of the print machine. The purpose of this research is to represent the ISO 12647-2 which is the international standard with domestic printing equipments.

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사운드스케이프 조성을 위한 능동형 음장조성시스템의 현장적용 평가 (Evaluation of the Field Application of "Spontaneous Acoustic Field Reproduction System(SAFRS)" to Propose Soundscape)

  • 국찬;장길수;전지현
    • 한국소음진동공학회논문집
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    • 제17권4호
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    • pp.289-297
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    • 2007
  • SAFRS is the system designed to reproduce the harmonic sound into the space according to the environmental factors. Here the harmonic sound means the sound which judged by the subjective tests, and the methods were suggested in the former studies. In this research, SAFRS was applied into the Square of D University to evaluate and verify the effectiveness of the system and a few evaluations were carried out as follows; 1) sound perception, frequency, volume and harmony with the space, 2) images of the square and acoustic environment and 3) acoustic environment with existing sounds, fountain sound, produced sound by SAFRS, and both of them respectively. The results can be summarized as follows; 1) According to the evaluation on acoustic environment, no relationships were shown between the cognition of sounds produced by SAFRS and the frequency or volume, but inverse proportion was shown between the volume and special harmony. 2) As the result of image evaluation. the relationship between space and sound image was shown proportional only except the evaluation on main road at night time, it means that the sound proposal with the visual contents matching with the sounds would be more effective than the proposal of sound only. 3) Results of evaluation on acoustic environment showed that the cognition effect at night time was shown higher than that of day time when only the acoustic element was given and the effect was increased when the visual elements matches with the acoustic elements if both of them were given. It confirmed the harmony between visual and acoustic elements was very important.

Cone beam형 전산화단층영상에서 골의 형태와 밀도의 평가 (Evaluation of imaging reformation with cone beam computed tomography for the assessment of bone density and shape in mandible)

  • 홍상우;김규태;최용석;황의환
    • Imaging Science in Dentistry
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    • 제38권1호
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    • pp.49-56
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    • 2008
  • Purpose: Diagnostic estimation of destruction and formation of bone has the typical limit according to capacity of x-ray generator and image detector. So the aim of this study was to find out how much it can reproduce the shape and the density of bone in the case of using recently developed dental type of cone beam computed tomography, and which image is applied by new detector and mathematic calculation. Materials and Methods: Cone beam computed tomography (PSR 9000N, Asahi Roentgen Ind. Co., Ltd., Japan) and soft x-ray radiography were executed on dry mandible that was already decalcified during 5 hours, 10 hours, 15 hours, 20 hours, and 25 hours. Estimating and comparing of those came to the following results. Results: The change of inferior border of mandible and anterior border of ramus in the region of cortical bone was observed between first 5 and 10 hours of decalcification. The reproduction of shape and density in the region of cortical bone and cancellous bone can be hardly observed at cone beam computed tomography compared with soft x-ray radiography. The difference of decrease of bone density according to hours of decalcification increase wasn't reproduced at cone beam computed tomography compared with soft x-ray radiography. Conclusion: CBCT images revealed higher spatial resolution. However, contrast resolution in region of low contrast sensitivity is the inferiority of images' property.

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미술교육에 있어서 시각적 미디어를 통한 조형교육에 관한 연구 (Visual Media Education in Visual Arts Education)

  • 박지숙
    • 조형예술학연구
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    • 제7권
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    • pp.64-104
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    • 2005
  • Visual media transmits image and information reproduced in large quantities, such as a photography, film, television, video, advertisement, or computer image. Correspondence to the students' reception and recognition of culture in the future. arrangements for the field of studies of visual culture. 'Visual Culture' implies cultural phenomena of visual images via visual media, which includes not only the categories of traditional arts like a painting, sculpture, print, or design, but the performance arts including a fashion show or parade of carnival, and the mass and electronic media like a photography, film, television, video, advertisement, cartoon, animation, or computer image. In the world of visual media, Image' functions as an essential medium of communication. Therefore, people call the culture of today fra of Image Culture', which has been converted from an alphabet convergence era to an image convergence one. Image, via visual media, has become a dominant means for communication in large part of human life, so we can designate an Image' as a typical aspect of visual culture today. Image, as an essential medium of communication, plays an important role in contemporary society. The one way is the conversion of analogue image like an actual picture, photograph, or film into digital one through the digitalization of digital camera or scanner as 'an analogue/digital commutator'. The other is a way of process with a computer drawing, or modeling of objects. It is appropriate to the production of pictorial and surreal images. Digital images, produced by the other, can be divided into the form of Pixel' and form of Vector'. Vector is a line linking the point of departure to the point of end, which organizes informations. Computer stores each line's standard location and correlative locations to one another Digital image shows for more 'Perfectness' than any other visual media. Digital image has been evolving in the diverse aspects, such as a production of geometrical or organic image compositing, interactive art, multimedia art, or web art, which has been applied a computer as an extended trot of painting. Someone often interprets digitalized copy with endless reproduction of original even as an extension of a print. Visual af is no longer a simple activity of representation by a painter or sculptor, but now is intimately associated with a matter of application of media. There is some problem in images via visual media. First, the image via media doesn't reflect a reality as it is, but reflects an artificial manipulated world, that is, a virtual reality. Second, the introduction of digital effect and the development of image processing technology have enhanced a spectacle of destructive and violent scenes. Third, a child intends to recognize the interactive images of computer game and virtual reality as a reality, or truth. Education needs not only to point out an ill effect of mass media and prevent the younger generation from being damaged by it, but also to offer a knowledge and know-how to cope actively with social, cultural circumstances. Visual media education is one of these essential methods for the contemporary and future human being in the overflowing of image informations. The fosterage of 'Visual Literacy' can be considered as a very purpose of visual media education. This is a way to lead an individual to the discerning, active consumer and producer of visual media in life as far as possible. The elements of 'Visual Literacy' can be divided into a faculty of recognition related to the visual media, a faculty of critical reception, a faculty of appropriate application, a faculty of active work and a faculty of creative modeling, which are promoted at the same time by the education of 'visual literacy'. In conclusion, the education of 'Visual Literacy' guides students to comprehend and discriminate the visual image media carefully, or receive them critically, apply them properly, or produce them creatively and voluntarily. Moreover, it leads to an artistic activity by means of new media. This education can be approached and enhanced by the connection and integration with real life. Visual arts and education of them play an important role in the digital era depended on visual communications via image information. Visual me야a of day functions as an essential element both in daily life and in arts. Students can soundly understand visual phenomena of today by means of visual media, and apply it as an expression tool of life culture as well. A new recognition and valuation visual image and media education is required to cultivate the capability of active, upright dealing with the changes of history of civilization. 1) Visual media education helps to cultivate a sensibility for images, which reacts to and deals with the circumstances. 2) It helps students to comprehend the contemporary arts and culture via new media. 3) It supplies a chance of students' experiencing a visual modeling by means of new media. 4) There are educational opportunities of images with temporality and spaciality, and therefore a discerning person becomes to increase. 5) The modeling activity via new media leads students to be continuously interested in the school and production of plastic arts. 6) It raises the ability of visual communications dealing with image information society. 7) An education of digital image is significant in respect of cultivation of man of talent for the future society of image information as well. To correspond to the changing and developing social, cultural circumstances, and the form and recognition of students' reception of them, visual arts education must arrange the field of studying on a new visual culture. Besides, a program needs to be developed, which is in more systematic and active level in relation to visual media education. Educational contents should be extended to the media for visual images, that is, photography, film, television, video, computer graphic, animation, music video, computer game and multimedia. Every media must be separately approached, because they maintain the modes and peculiarities of their own according to the conveyance form of message. The concrete and systematic method of teaching and the quality of education must be researched and developed, centering around the development of a course of study. Teacher's foundational capability of teaching should be cultivated for the visual media education. In this case, it must be paid attention to the fact that a technological level of media is considered as a secondary. Because school education doesn't intend to train expert and skillful producers, but intends to lay stress on the essential aesthetic one with visual media under the social and cultural context, in respect of a consumer including a man of culture.

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R-CNN 기법을 이용한 지중매설물 제원 정보 자동 추출 연구 (A Study on Automatically Information Collection of Underground Facility Using R-CNN Techniques)

  • 박현석;홍기만;조용성
    • 한국재난정보학회 논문집
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    • 제19권3호
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    • pp.689-697
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    • 2023
  • 연구목적: 본 연구는 미니트렌칭 공법 적용 과정에서 범용 스마트폰을 이용하여 지중매설물의 정보를 자동 추출하는데 목적이 있다. 연구방법:이미지 학습을 위한 데이터 셋은 주야간, 높이, 각도 등의 다양한 조건에서 수집하였으며, 객체 검지알고리즘은 R-CNN 알고리즘을 이용하였다. 연구결과: 성능평가지표는 정확한 예측과 재현율의 평균을 동시에 고려할 수 있는 F1-Score를 적용하였으며, 학습결과 F1-Score는 0.76으로 나타났다. 결론: 본 연구의 결과는 스마트폰 기반의 지중매설물 정보 추출이 가능한 것으로 나타났으나, 학습데이터의 추가적인 확보와 현장 실증 등을 통해 알고리즘의 정밀성 및 정확성을 향상시킬 필요가 있을 것으로 판단된다.

의료 영상보안을 위한 기하학적 변형에 견고한 워터마킹 알고리즘 설계 (Design of robust Watermarking Algorithm against the Geometric Transformation for Medical Image Security)

  • 이윤배;오근탁
    • 한국정보통신학회논문지
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    • 제13권12호
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    • pp.2586-2594
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    • 2009
  • 디지털 워터마크 기법은 지적 창작물(음악, 영상, 동영상)에 대한 저작권과 재산권의 보호 및 인증, 데이터 손실 여부 판단, 복사 방지 및 추적 등을 목적으로 한 사후 재산권의 보호 기술로 제안되었다. 본 연구에서는 워터마크의 기하학적인 왜곡에 대한 공격에 견고하게 하도록 영상의 전처리 과정을 거친 후 선택된 기하학적인 불변점을 골라 그 점을 중심으로 워터마크를 삽입하여 추출한다. 특히 의료 영상의 병변 관찰을 위해 발생된 RST(Rotation Scale, Translation) 변환 및 여러 가지 영상처리에 강인하며 일정 기간 압축 저장되는 영상에서도 워터마킹이 유지되도록 워터쉐드(watershed) 분할 방법을 통한 견고한 워터 마킹 알고리즘을 제안 하였다. 이를 통해 본 논문에서 제안한 워터마킹 알고리즘은 의료 영상에 대한 JPEG압축공격, RST공격, 그리고 필터링 공격보다 강인함을 확인하였다.

모바일 디스플레이를 위한 특성화 방법과 색 정합 기술 (Characterization Method and Color Matching Technology for Mobile Display)

  • 박기현;하영호;이철희
    • 한국멀티미디어학회논문지
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    • 제9권4호
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    • pp.434-442
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    • 2006
  • 본 논문에서는 모니터와 모바일 디스플레이간의 복잡한 색 정합 과정을 단순화시키는 3차원의 색 정합 look-up table(LUT)을 설계하였다. 여기에서 영상의 색은 CIEXYZ 혹은 CIELAB 등의 장치 독립적인 색 공간에서 처리되며, 색역의 차이를 보상하기 위해 색역 사상이 수행된다. 장치 의존적인 RGB 색 공간에서 장치 독립적인 색 공간으로의 변환은 디스플레이 특성화 과정을 수행함으로써 이루어진다. 기존의 S-curve 모텔을 이용하여 모바일 LCD 를 특성화 하면 모바일 LCD의 채널 색도 변화와 채널 의존 특성으로 인해 특성화 오차가 허용 오차보다 커지게 된다. 본 논문에서는 R, G, B, C, M, Y, K 성분의 X, Y, Z의 전기-빛 입출력 곡선을 모두 이용하여 특성화 오차를 줄였다. 제안한 색 정합 LUT 와 복잡하고 단계적인 색 정합 절차 사이의 색 정합 결과 영상 비교 실험을 통해 허용오차 내의 영상을 재현할 수 있는 색 정합 LUT의 최소 크기가 64($4{\times}4{\times}4$)라는 것을 확인하였다.

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들뢰즈의 '사건'개념에 의한 디지털 공간 표현에 관한 연구 (A Study about Expression of the Digital Space according to Deleuze's 'Event' Concept)

  • 박준홍;윤재은
    • 한국실내디자인학회논문집
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    • 제18권3호
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    • pp.66-73
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    • 2009
  • In the digital age, as it is ambiguous to distinguish between the original and a replica, the order of reproduction which is more realistic than the reality is becoming a new cultural order. Before the period when digital paradigm dominates, always the reality has been an object to be copied. But, today is an age of Simulacre where code of digital technology dominates. Such a phenomenon is shown in the construction space without exception Gilles Deleuze who was a representative philosopher of the post-structuralism depicted the concept of Simulacre as an instant 'event' passing by without change in an object or substance. As the result of analyzing what kinds of feature for the concept of event is expressed in the digital space, a diagram itself could be a design process, the digital space with correlation was able to be created through the change in the meaning according to the changing image and my body which was the leading part to form primary space. In such a meaning, this study pays attention to Deleuze's 'Event(Simulacre)' concept. At this transitional period when a new concept of digital space is about to take root, the modern philosophers' theories and the discussions about spatial relativity should be continually studied, along with the development of spacial theories for the modem construction.