• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2002년도 ITC-CSCC -2
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• pp.1149-1152
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• 2002

This paper presents the computerised simulation of colour-blindness and proposes a colour enhancement technique to aid colour-blinded people to use Visual Display Units (VDU). With the red-green colour perception difficulties, the ISH model has been used to develop the algorithms. The simulator and colour enhancement have been tested by colour-blind people and compared to existing simulators for colour-blindness.

• 한국실내디자인학회:학술대회논문집
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• 한국실내디자인학회 2007년도 추계학술발표대회 논문집
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• pp.145-148
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• 2007

The people shares the street with various activities. The colour-blind also shares this public space of the city. But, the colour-blind is difficult to feel and act as the normal people, because of their limited visual ability. The purpose of this research is to suggest the color matching codes of the city for the colour-blind adopting the NCS color system. This research analyzes the result of the simulation with color programs. This paper discusses ways of improving city color planning towards the public environment for all people, especially the colour-blind.

• 설비공학논문집
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• 제7권2호
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• pp.171-183
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• 1995

Generally, among many kinds of shading devices such as venetian blind, sunscreen, louver and curtain, venetian blind is using widely because the mechanism is so simple and easy to use solar insolation by controlling the slat angle. Analysis of time dependent heat transfer through the window with venetian blind is very important in order to use it effectivly. Therefore, in this study, theoretical thermal analysis method was developed to analyze time dependent heat transfer through a double pane window with and without venetian blind, and was made one module of TRNSYS(A Transient Simulation Program)program. By this way, it was analyzed that how much the variation of slat angle, slat colour and slat absorptivity of venetian blind would be affected on the heating and cooling load of building, and also which colour and angle of slat was optimal for the heating and cooling load of building.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제15권11호
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• pp.4043-4064
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• 2021

Night-time image quality evaluation is an urgent requirement in visual inspection. The lighting environment of night-time results in low brightness, low contrast, loss of detailed information, and colour dissonance of image, which remains a daunting task of delicately evaluating the image quality at night. A new blind quality assessment metric is presented for realistic night-time scenario through a comprehensive consideration of contrast, texture, and colour in this article. To be specific, image blocks' color-gray-difference (CGD) histogram that represents contrast features is computed at first. Next, texture features that are measured by the mean subtracted contrast normalized (MSCN)-weighted local binary pattern (LBP) histogram are calculated. Then statistical features in Lαβ colour space are detected. Finally, the quality prediction model is conducted by the support vector regression (SVR) based on extracted contrast, texture, and colour features. Experiments conducted on NNID, CCRIQ, LIVE-CH, and CID2013 databases indicate that the proposed metric is superior to the compared BIQA metrics.

• 감성과학
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• 제10권4호
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• pp.571-581
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• 2007

이 컬러 인식 점자 시스템은 시각장애인의 대부분인 후천적 시각장애인들의 색인지를 돕기 위한 시스템으로 이는 후천적 시각장애인들의 대다수가 시력을 잃기 전 색을 인지하고 있었다는 점에 착안한 것이다. 이 시스템은 전 세계적 약속체계이고 색체계 중 가장 범용되는 먼셀 색체계를 기반으로 간단한 인지체계와 조형원리를 활용하여 색을 정확히 인지할 수 있다는 특징이 있으며 단순히 색상만 인지할 수 있는 것이 아닌 채도, 명도까지 확인이 가능, 총합 153가지의 색상을 확인할 수 있다. 또한 기존 점자 사용과의 이질감을 최소화하기 위해 점자의 위치와 돌출 정도만 변화를 준 단순한 디자인으로 실생활에 쉽게 사용이 가능하며 다양한 분야에 적용될 수 있으리라 사료된다. 이 시각장애인을 위한 컬러 인식 점자 시스템이 다양한 분야에 적용되어 시각장애인들이 색인지를 통해 사회와 소통, 일반인과 동등한 입장에서 문화생활을 누리게 되길 기대한다.

• 한국멀티미디어학회논문지
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• 제19권1호
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• pp.41-50
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• 2016

Moblie device based financial services are vulnerable to social engineering attacks because of the display screen of mobile devices. In other words, in the case of shoulder surfing, attackers can easily look over a user's shoulder and expose his/her password. To resolve this problem, a colour-based secure keyboard solution has been proposed. However, it is inconvenient for genuine users to verify their password using this method. Furthermore, password colours can be exposed because of fixed keyboard colours. Therefore, we propose a secure mobile authentication method to provide advanced functionality and strong privacy. Our authentication method is robust to social engineering attacks, especially keylogger and shoulder surfing attacks. According to the evaluation results, our method offers increased security and improved usability compared with existing methods.

• 한국실내디자인학회논문집
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• 제23권5호
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• pp.33-40
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• 2014

The Danish-Icelandic artist, Olafur Eliasson who was born in 1967 is known for installation projects employing materials such as colour, fog, mirror and light to rethink the relationship between human and surrounding. Since he started the early projects, Eliasson has been interested in the relationship between an art, a viewer and space. He has used the medium from nature because he thought nature is very common subject to derive new idea of relationship between human and surrounding. Eliasson revealed the idea of relationship between human and surrounding by three characteristics of spatial design such as 'reinterpretation of placeness by juxtaposition of mediums and defamilarization', 'ambiguity and extensity of depth distance of space by mediums' and 'change in spatiality by movement of viewers and time'. This paper focused on four case projects : The mediated motion in 2001, The weather project in 2003, The blind pavilion in 2003, Your rainbow panorama in 2011. It is aimed to discover relationship between human and surrounding in the case projects under three characteristics. This study found that three characteristics were differently applied in the case projects in terms of spatial experience and design methods. Inside & outside locations, formal quality, visual-perceptual relationships in and around each case are crucial elements and tools. The unique relationship between human and surrounding of Eliasson and three characteristics are applicable to architecture and spatial design.