• 한국인쇄학회지
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• 제16권3호
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• pp.121-131
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• 1998

The object color does not look same under the different light source. It depends on the surface spectral reflectance and the spectral distribution of light source. Therefore we should find the surface spectral reflectance of object color and the spectral distribution of light source for color reproduction. Using Wiener estimation, we can estimate the spectral reflectance from low dimensional images obtained with multi-band image acquisition system. The kind and the number of imaging filters have the effect on the estimation of the spectral reflectance. Therefore it is important that optimal filters are selected to minimize the error of the result. In this paper, we describe methods to select optimal filters with minimum error between measured and estimated surface spectral reflectance and to estimate surface spectral reflectance of Munsell color chart from six multi-band images by using Wiener estimation.

• Asian Pacific Journal of Cancer Prevention
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• 제17권sup1호
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• pp.85-90
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• 2016

Two years after implementation of the graphic health warning intervention in Vietnam, it is very important to evaluate the intervention's potential impact. The objective of this paper was to predict effects of graphic health warnings on cigarette packages, particularly in reducing cigarette demand and smoking-associated deaths in Vietnam. In this study, a discrete choice experiment (DCE) method was used to evaluate the potential impact of graphic tobacco health warnings on smoking demand. To predict the impact of GHWs on reducing premature deaths associated with smoking, we constructed different static models. We adapted the method developed by University of Toronto, Canada and found that GHWs had statistically significant impact on reducing cigarette demand (up to 10.1% through images of lung damage), resulting in an overall decrease of smoking prevalence in Vietnam. We also found that between 428,417- 646,098 premature deaths would be prevented as a result of the GHW intervention. The potential impact of the GHW labels on reducing premature smoking-associated deaths in Vietnam were shown to be stronger among lower socio-economic groups.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제10권1호
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• pp.381-394
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• 2016

The several noise level estimation algorithms that have been developed for use in image processing and computer graphics generally exhibit good performance. However, there are certain special types of noisy images that such algorithms are not suitable for. It is particularly still a challenge to use the algorithms to estimate the noise levels of complex textured photographic images because of the inhomogeneity of the original scenes. Similarly, it is difficult to apply most conventional noise level estimation algorithms to images rendered by the Monte Carlo (MC) method owing to the spatial variation of the noise in such images. This paper proposes a novel noise level estimation method based on histogram modification, and which can be used for more accurate estimation of the noise levels in both complex textured images and MC-rendered images. The proposed method has good performance, is simple to implement, and can be efficiently used in various image-based and graphic applications ranging from smartphone camera noise removal to game background rendition.

• 디자인학연구
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• 제14권3호
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• pp.7-14
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• 2001

현대의 그래픽 디자인은 컴퓨터와 전자기술의 발달로 다양하고 첨단적인 이미지들의 스타일로 기존의 그래픽 디자인의 세계를 변화시키며 새로운 그래픽 디자인의 영역을 만들어가고 있다. 하지만 오늘날 그래픽 디자인 스타일의 기본 원리나 이미지들은 지난 20C초부터 중반까지 그래픽 디자인 사조들의 시각적 특징들이 반영된 각종 창작물들에 의해 다듬어지고 변화되어진 시각적 원리나 방법들의 영향을 받아 온 것이 사실이다. 일반적으로 모던 그래픽 디자인이라 부르고 있는 이 시기의 그래픽 디자인 스타일들은 20C 디자인의 시작이 되는 아르누보 이후 회화적 모더니즘, 구성주위, 신조형 주의, 바우하우스를 거치며 현대 그래픽 디자인의 기본적인 원리와 스타일을 형성하게 되는 스위스 그래픽 디자인 양식에서, 그리고 뉴욕파 그래픽 디자인에 이르러 전 세계로 퍼져가게 된다. 본 연구에서는 21C 급속한 그래픽 디자인의 표현 기술 발달과 다양한 그래픽 디자인 환경 속에서 현대 그래픽 디자인 원리의 바탕이 되는 20C 초반부터 중반까지 그래픽 디자인의 시각적 특징과 흐름의 조망을 통해 좀더 그래픽 디자인에 대한 체계적이고 근본적인 인식의 확보와 그래픽디자인의 시각적 특징을 이해하고 새로운 그래픽 스타일을 생산해 내는 하나의 연구 과정으로 삼고자 한다.

• 디자인학연구
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• 제19권3호
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• pp.207-218
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• 2006

21st century is called digital and information era. The visual communication becomes more important than any other centuries. Visual communication design has been represented in varied images from ancient society up until the present time. Especially graphic design, which has experienced artistic upheaval from modernism and postmodernism, has been enabled to deliver messages in a more developed and sensuous appearances. Deconstructionist design wasn't well received by modernism, an advocate of practicality and effectiveness; however, as the beginning of subsequent postmodernism, it started to earn a warm welcome from a number of designers. Postmodernism made it possible for deconstruction to be a new paradigm appreciating neutral respect for varied expressions and designers' idiosyncrasy. Corresponding to this new trend, Edward Fella published his artwork 'Letters on America', which introduced a variety of vernacular design works in America. It was the result of years of research, and included materials which were not something completely new to field of communication design but rather symbolic, deconstructive images available everywhere around us. Deconstruction broke away from the previous modernism's unity and standards, and sought to achieve a new tensional deliverance. As a consequence, images were created in destructive and incomplete forms. Graphic design also complied with this new code and its advent fascinated the artists in the fields of advertising, editorial and poster designs. This paper contends that contemporary graphic design still maintains a deconstructive representation, examines its locality in design works from an aesthetic viewpoint, and researches theoretical approaches to deconstructionist and case studies conducted domestically. There has been incessant critical contradiction in terms of the heritage of deconstruction. I would like to present you with a moment in which you can struggle to decide whether it is a result of an effort to get away from modernism or an offspring of postmodernism.

• 대한공간정보학회지
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• 제3권1호
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• pp.79-89
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• 1995

SPOT 위성영상은 궤도의 안정성, 높은 공간해상력 및 적절한 기선대 고도비등을 제공하며 사각 촬영으로 얻어진 위성영상으로부터 3차원 지형정보를 추출할 수 있는 계기를 가져다 주었다. 본 연구에서는 SPOT 입체 위성영상을 이용하여 3차원 지형지물의 특징자료를 추출하고, 이 자료를 이용하여 지형과 지물에 대한 3차원 그래픽 자료를 생성하는 기법과 지형정보의 3차원 그래픽 화일을 컴퓨터상에서 자동생성하고 도시하는 기법을 연구하였다.

• 한국지형공간정보학회:학술대회논문집
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• 한국지형공간정보학회 1995년도 학술발표회 개요집
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• pp.121-142
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• 1995

SPOT 위성영상은 괘도의 안정성, 높은 공간해상력 및 적절한 기선대 고도비등을 제공하며 사각촬영으로 얻어진 위성영상으로부더 3차원 지형정보를 추출할 수 있는 계기를 가져다 주었다. 본 연구에서는 SPOT 입체 위성영상을 이용하여 3차원 지형지물의 특징자료를 추출하고, 이 자료를 이용하여 지형과 지물에 대한 3차원 그래픽 자료를 생성하는 기법과 지형정보의 3차원 그래픽 화일을 컴퓨터상에서 자동생성하고 도시하는 기법을 연구하였다.

• 한국환경과학회지
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• 제32권12호
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• pp.979-985
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• 2023

After the outbreak of COVID-19, the demand for home-enjoyable video games has surged, driven by extended pandemic conditions and resulting in rapid graphic technology advancements. Consequently, games with diverse expression techniques have emerged, captivating players. Virtual Reality (VR) environments predominantly feature natural landscapes, with advancing graphic technology enabling lifelike scenes. The rise in individuals seeking solace through natural elements in games has followed suit. As VR technology and metaverse interest grow, more people are exposed to digital imagery. However, evidence on the influence of graphic expression methods on emotional response to that is lacking. Our study examined user emotional responses, focusing on natural landscapes in digital graphics of games. Analyzing a group of 47 young adults as frequent digital media consumers, we studied reactions to different image styles (Realism, Semi-Realism, Stylized). In the analysis, Realism-style images were perceived the most positively, while emotional responses to natural landscapes with different graphical expressions showed no significant differences. Results suggest that recognizing digital natural landscapes may outweigh expression style impacting the evaluation of digital nature. This study's empirical analysis enhances the understanding of digital nature's application to actual situations.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2001년도 하계종합학술대회 논문집(3)
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• pp.5-8
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• 2001

The computer programs based upon graphic user interface(GUI) became commonplace with the advance of computer technology. Nevertheless, programs for the visually-handicapped have still remained at the level of TTS(text to speech) programs and this prevents many visually-handicapped from enjoying the pleasure and convenience of the information age. This paper is, paying attention to the importance of character recognition in images, about the configuration of the system that converts text in the image selected by a user to the speech by extracting the character part, and carrying out character recognition.

• 대한원격탐사학회지
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• 제8권1호
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• pp.59-69
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• 1992

The IMAPRO sotfware package was mainly focused to provide an algorithm which is capable of displaying various color composite images on IBM PC, VGA(Video Graphic Array) card with no special hardware. It displays the false color images using a low-cost eight-bit place refresh buffer. This produces similar quality to the one obtained from image board with three eight-bit plane. Also, it provides user friendly menu driven method for the user who are not familier with technical knowladge of image processing. It may prove useful for universities, institute and private company where expensive hardware is not available.