• Science of Emotion and Sensibility
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• v.13 no.3
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• pp.501-510
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• 2010

The knowledge base on emotional information is one of the key elements in the implementation of emotion retrieval systems for contents design of Mobile devices. This study proposed a new approach to the knowledge base implementation by automatically extracting color components from full-color images. In this study, the validity of the proposed method was empirically tested. Database was developed using 100 interior images as visual stimuli and a total of 48 subjects participated in the experiment. In order to test the reliability of the proposed 'emotional information knowledge base', firstly 'recall ratio' that refers to frequencies of correct images from the retrieved images was derived. Secondly, correlation Analysis was performed to compare the ratings by the subjects to what the system calculated. Finally, the rating comparison was used to run a paired-sample t-test. The analysis demonstrated satisfactory recall ration of 62.1%. Also, a significant positive correlation (p<.01) was observed from all the emotion keywords. The paired Sample t-test found that all the emotion keywords except "casual" retrieved the images in the order from more relevant to less relevant images and the difference was statistically significant (t(9)=5.528, p<.05). Findings of this study support that the proposed 'emotional information knowledge base' established only with color information automatically extracted from images can be effectively used for such visual stimuli search tasks as commercial interior images.

• Journal of the Institute of Electronics Engineers of Korea SP
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• v.44 no.4 s.316
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• pp.17-25
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• 2007

Multilevel inkjet printer employs multiple ink droplets with variable dot size and/or different concentrations intended to preserve high fidelity color reproduction and the appearance of continuous tone. A variety of research efforts on multitoning techniques has progressed toward better image quality. However, banding artifacts appear due to the same dot distributions near the printable output levels. This results in discontinuity and visually unpleasing output, especially at the smooth tone transition region. In this paper, to reduce the banding artifacts, a multitoning method to arrange ink distribution by controlling the blending proportion of adjacent output pixels based on an improved threshold scaling function is proposed. Ink distributions across the banding regions are changed according to two factors of the threshold scaling function because these factors handle the blending point of adjacent output pixel. Therefore, 8 observers, subjectively investigated ink distributions around the printable output levels for a set of the improved threshold scaling function. For a threshold scaling function with the specific factor values, we can achieve smoother visual transition. In the experiment, the proposed method showed a reduction of banding artifacts in both u-ay and color image and represented better Performance of color reproduction.

• 지역과문화
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• v.7 no.3
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• pp.81-108
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• 2020

This study aims to critically consider the local cultural policies of the government and local governments by village mural. Village murals, which began to be painted in the late 1990s, have been a nationwide cultural phenomenon for decades. In particular, it was consistently used as an important element of various local cultural policies implemented by the government and local governments. The government and local governments have been working on the project for two purposes: 'improving the residential environment' and 'activating tourism' but it has largely focused on 'activating tourism'. This study grasped the concrete status of major village murals across the country through field surveys, one of the case study methods. Also, through the analysis of official documents, the government and local governments operating in the village mural project were analyzed for the policy basis and administrative management plan. As a result of on-site surveys, most of the village murals across the country had problems such as uniform subject matter, low level representation, and poor follow-up management. This is partly based on the experiences and abilities of organizations and artists who participated in the village mural project, but fundamentally, it is due to the projects of the government and local governments that focused on short-term visual tourism rather than long-term improvement of the residential environment. It was confirmed that the projects of the government and local governments were carried out through vertical integration and that there were problems in the actual work, such as requiring specific topics, subject matter, designs and colors. As a result, the village murals 'objectify' the residents and 'romanticized' the place, resulting in a unified visual representation. Therefore, this study suggests that the administration and accounting should be strictly managed, but in actual work, the vertical integration structure should be eased by simplifying various documents and procedures, as well as rich cultural understanding of the target place, selection of various topics, and original subject matter and expressions.

• Korean Institute of Interior Design Journal
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• v.23 no.2
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• pp.71-79
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• 2014

The purpose of this study is to elucidate that photo, which has been used as original photo's purpose of information transfer in modern age, is now used as romantic reproduction which is the communication methods of architect's idea and thought through photographic vision which is beyond photograph own capabilities. The photos of Mies van der Rohe and Le Corbusier's architectural works are taken as an example for studying and analysing the way of deliverying the concept of creative work in the functional spaces in the modern era. It looked at the way of modern archirecture configuration, which architects wanted to show by pictures, such as concurrency, movement, sense of exhibition and concept of time-space and planarity on photographic vision such as multiview, movement, daily life exclusion, scenography and perspective loss. Reflecting that, I presents Le Corbusier and Mies van der Rohe's intention through photo by analyzing their picture of architecture by way of photograph techniques-camera position moving, over exposure, photomontage, silhouette technic and overlap technic. Mies van der Rohe and Le corbusier demonstrated the change and manipulation of the their architectural photos in different point of view. They express their architectural theories by photos of their works and overcome the limitation of expression of constructed building designed by them. The photos of architects's works in the case study with photos and descriptions introduce to their design concept. The design concept of the architects have become ideal concept for many contemporary architects and keep reproducing through the photos of their architectural works.

• Journal of the Institute of Electronics Engineers of Korea SP
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• v.43 no.6 s.312
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• pp.46-56
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• 2006

In this paper, we propose an improved reproduction algorithm for a realistic image of the real scene based on the optical characteristics of the light sources and the materials at the lighting environment. This paper is continuation of the previous study to improve the modeling method of the light sources and the materials and apply this to the real rear lamp of automobile. The backward ray tracing method is first used to trace the light ray from a light source, and also considers the physical characteristics of object surfaces and geometric properties of light radiation to estimate accurately the light energy incoming toward to human eyes. For experiments and verification of the proposed method, the simulation results are compared with the measured light stimuli. Accordingly, the simulation results show that the proposed algorithm can estimate light energy well and reproduce the visually similar image with a scene incident on a sight of viewer.

• Journal of Digital Contents Society
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• v.18 no.6
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• pp.1091-1099
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• 2017

This study used movies to improve the students' immersion and interest in political classes. Movie is one of the most common and most powerful means of disseminating information that occur among humans. And it is the most easily accessible to the public. Especially, the recognition of visual images proceeds more easily and faster than the perception of thought. Understanding the political happening through movie can get double effect because of the high understanding and immersion. Above all, movies can penetrate into people's minds because they become a ideological. Therefore, it is publicized and also historical events are reproduced in movies. Likewise, politics is also based on the role of the thought or dominant beliefs, and public opinion is formed to justify various groups of human activities. It shows that today's political happening is not a new, but the historical phenomenon of the past are reproduced. Based on this, to discuss modern Korean political history through movies.

• Journal of the Institute of Electronics Engineers of Korea SP
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• v.38 no.2
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• pp.208-217
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• 2001

Model-based color image halftoning method using dot-pattern database is proposed for low-resolution color image printing. Dot-pattern database used in the proposed method is based on Blue-Noise Mask. The database consists of dot-patterns constructed by circular dot-overlap model according to each color value. In halftoning procedure, input color value is reproduced as the dot-pattern selected to minimize the difference between the color values of the original image and those of the printed image. Also, the contrast sensitivity function as a human visual model is used to improve the perceived quality of the printed image in dot-pattern selection. Thus, the proposed method can substantially reproduce the color values of the pixels in original image and obtain better image quality. In the experiment, the proposed method has less ΔΕ/Sub ab/ between the original image in monitor and the printed one than that of ED and BNM halftoning. This result approves that the proposed method reproduces better image quality.

• The Transactions of the Korea Information Processing Society
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• v.7 no.8
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• pp.2565-2574
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• 2000

The error diffusion method is good for reproducing continuous image to binary image. However the reproduction of edge characteristic is weak in power spectrum analysis of display error. In this paper. we present an edge-enhanced error-diffusion method which include pre-processing algorithm for edge characteristic enhancement. Pre-processing algorithm consists of the difference value between current pixel and local average of original image and weighting function of pre-filter. First. it is obtained the difference value between current pixel and the local average of peripheral pixels(5x5) in original image. Second, weighting function of pre-filter is composed by function including absolute value and sign of difference value. The improved Error diffusion algorithm using pre-processing algorithm, present a good result visually which edge characteristic is enhanced. The performance of the proposed algorithm is compared with that of the conventional edge-enhanced error diffusion by measuring the RAPSD of display error, the egde correlation and the local average accordance.

• 한국HCI학회:학술대회논문집
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• 2007.02b
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• pp.353-360
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• 2007

최근 국가균형발전을 위한 문화콘텐츠산업의 비중은 날로 커지고 있으며 디지털 컨버젼스의 중심으로 부각되고 있다. 이러한 시대적, 사회적 요구에 즈음하여 정부의 지역문화 콘텐츠 육성 의지에 부합하는 전통건축물의 e-Learning을 위한 웹 기반 저작도구의 구현방법을 제안하고자 한다. 지금까지의 전통건축의 복원 및 재현은 전통적인 전수방식에 의존하거나 다분히 현상적인 수준에 그치고 있어, 우리 문화에서 중요한 위치를 차지하고 있는 전통건축물에 대한 저변의 확대와 보편적이고 대중적인 이해를 돕기에는 한계가 존재하는 것이 사실이다. 또한 전통건축에 관련한 교육자료는 대부분 고서(古書)나 텍스트에 의존하고 있는 것이 현실인 점을 감안할 때, 시각적이고 인터랙티브한 e-Learning 시스템의 연구는 필수적이라 할 것이다. 연구의 범위로서는 한국문화콘텐츠진흥원의 진행 중 사업인 문화원형복원사업인 "조선시대 탐라순력도의 디지털콘텐츠 개발"의 내용을 토대로 하며, 조선 중기인 17세기 제주도의 주심포계 전통건축을 대상으로 하고 있다. 본 연구의 내용은 1) 17세기 중엽 제주도의 주심포계 전통건축물에 대한 가구구조의 형성관계 및 그 형상을 디지털화하기 위한 데이터 체계를 제안하고, 2) 이에 따른 웹 기반의 가상전시 및 e-Learning 콘텐츠를 위한 시스템 구축의 프로토타입을 제시하며, 3) 상기 제시한 데이터 체계에 근거한 사용자 중심의 전통건축물 재현을 위한 3차원 저작환경 및 그 인터페이스를 제시한다. 이 결과로 전통건축물의 형성원리를 이해하고 전통 양식에 근거한 창의적 저작이 가능한 환경을 제시함으로써 멀티미디어 저작물 및 디자인 협업, 전통건축 유지보수 분야 등에 파급효과를 기대할 수 있다. 더불어 제안된 내용에 근거한 향후 연구로 전통건축물에 대한 일관되고 통합적인 관리방안과 그 실현수단에 대한 논의를 비롯하여 전통문화를 소재로 한 디지털 콘텐츠의 활용방안 및 그 부가가치에 대한 논의가 병행되어야 할 것이다.

• The Journal of the Korea Contents Association
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• v.12 no.12
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• pp.80-92
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• 2012

News plays a similar role with myths in modern society. Myths provide the framework from which people understand and experience the world, and news media plays an important role in constructing these myths. In this context, this study examined how female and male business leaders have been represented in newspaper photographs through quantitative and qualitative textual analyses. Photographs of female business leaders which appeared in news interviews and profile news stories from 1990 to 2011 were analyzed, and photographs of male leaders corresponding to the total number of female photographs were also investigated. As a result, gender perspectives were found. While male business leaders were portrayed as active and serious figures in connection with their professional work places, mostly in bust shots, female business leaders were represented as passive objects artificially posed for the news in a context separated from their business, and often in full length shots.