• Korean Institute of Interior Design Journal
• /
• v.16 no.2 s.61
• /
• pp.295-302
• /
• 2007

The use of colors plays an important role in the field of space design. The selection of proper colors influences on people who use space by making the most of the psychological and physical functions of colors. Especially, the medical space is relatively more important than other indoor spaces in the selection of colors. The medical space has to be something to do with diversity and functions, and at the same time with stability and quietude, as well as the space with general convenient facilities. Color is not only related to the expression but also to the distinction of things and the existence. It also functions as a visual language. Human beings depend heavily on the function of color as a visual language. According to previous studies, human beings depend on color by 80% of the whole range of eyesight. Thus, color is an important factor in recognizing things and space. For example, in hospital, it Is very important to apply proper colors to various medical treatment spaces for the sake of patients' rest and healing. Various colors which do not consider the function of patients' rest and healing may make the space confusing against the change of space and structure. It is also important to apply colors to the change of space and structure. Another key point that I would like to make is that color has visual, direct and physical influence on the human body. For example, the color red with long wavelength serves to regulate body temperature. Research on the color scheme for hospitals should consider both physical and psychological factors. That is why the research should be carried out in depth through continuous clinical demonstration. The present research aims to outline color planning.

• Journal of the Korea Society of Computer and Information
• /
• v.12 no.4
• /
• pp.53-59
• /
• 2007

A navigation system for virtual environments using low-qualify HMD(head mounted display) must quantize images when the system presents true-color image with restricted number of colors. Such navigation system quantizes an image by using fixed palette. If the system represents an image by using a variable palette which is made considering a region around the viewpoint then user can perceive a virtual environments more vividly because human visual system is sensitive to the colors variation in the region around the viewpoint. In this paper we propose a color quantization algorithm that quantize a region around the viewpoint more finely than other regions at each variation of viewpoint for virtual environments navigation system and compose virtual environments navigation system using proposed algorithm. The system quantizes an image at each variation of viewpoint and shows a quantized image to user through HMD. We tested user preferences for our proposed system and the results show that users preferred our system.

• Korean Institute of Interior Design Journal
• /
• v.13 no.2
• /
• pp.168-175
• /
• 2004

The purpose of this study is to ascertain the color design element in traditional palaces among those in the neighboring three nations of East Asia, notably Korea, China and Japan. Undoubtedly the ultimate goal to be pursued, by so doing, has to be inquiry into the identical prototype of Korean color design element. The East Asian color palette is rich in symbolic meaning, mostly these color are in harmony with the nature and human life. In this study, the color of the traditional palace is characterized by the actual color use. The colors of China are various, but they concentration R～G, middle/high level of chroma. In Korea, the colors in palace are distributed in YR/GY, middle/low chroma, relatively higher value. While the major features of Japan color are YR/achromatic with middle/low levels of value and chroma.

• Journal of Korea Multimedia Society
• /
• v.20 no.3
• /
• pp.491-499
• /
• 2017

The Information & Communication Technology (ICT) and the Internet of Things (IoT) have become the major issues in Republic of Korea recently. While RS-232, Zigbee, and WiFi-related technologies are used in the ICT-based systems, we focus on the Power Line Communication (PLC) in this paper. By carrying out OPNET simulations, we've implemented the PLC Router Node Model, PLC Terminal Node Model, PLC Link Model, and PLC Palette Model and executed the simulations arranging 20 holds within the range of 400m (20m apart). As a result, we confirmed that the slient node problem had occurred at the point of 200m-2000m (as of 2016) distance preventing further communications. However, the control group, by contrast, was able to carry out the communications by installing a router. We expect that this paper will contribute to the development of a foundation technology which will saves costs by performing the simulation prior to building actual large-scale ICT Complex in the future work.

• Korean Institute of Interior Design Journal
• /
• no.26
• /
• pp.72-78
• /
• 2001

The purpose of this study is to develop the color palettes which are applicable to the color deign process for residential interiors according to the image types. To achieve this purpose, review of literature, questionnaire survey, and contents analysis were used. The major results of this study are as follows : The interior color images are clearly divided into 4 types, such as 'sophisticated', 'natural', 'gorgeousl', and 'casual'From the results of color palette, these 4 color image types are found to be very closely related to the interior image. It means that color image is very important element in Interior design process. Therefore, it is helpful to plan the color design according to the image types of interior color for good interior design.

• Nuclear Engineering and Technology
• /
• v.38 no.3
• /
• pp.225-230
• /
• 2006

With the advent of inexpensive computing power over the past two decades, applications of Monte Carlo radiation transport techniques have proliferated dramatically. At Los Alamos, the Monte Carlo codes MCNP5 and MCNPX are used routinely on personal computer platforms for radiation shielding analysis and dosimetry calculations. These codes feature a rich palette of variance reduction (VR) techniques. The motivation of VR is to exchange user efficiency for computational efficiency. It has been said that a few hours of user time often reduces computational time by several orders of magnitude. Unfortunately, user time can stretch into the many hours as most VR techniques require significant user experience and intervention for proper optimization. It is the purpose of this paper to outline VR strategies, tested in practice, optimized for several common radiation shielding tasks, with the hope of reducing user setup time for similar problems. A strategy is defined in this context to mean a collection of MCNP radiation transport physics options and VR techniques that work synergistically to optimize a particular shielding task. Examples are offered in the areas of source definition, skyshine, streaming, and transmission.

• Proceedings of the IEEK Conference
• /
• 2003.11b
• /
• pp.157-160
• /
• 2003

Recently, several steganographic algorithms for two-color binary images have been proposed. In this paper, we propose a steganographic algorithm which embeds a secret message into bitmap images and palette-based images. To embed a message, the suggested algorithm divides a bitmap image into bit-plane images from LSB-plane to MSB-plane for each pixel, and considers each bit-plane image as a binary one. The algorithm splits each bit-plane image into m$\times$n blocks. and embeds a r-bit(r=[log$_2$(mn+1]-1) message into the block. And our schemes embed a message to every bit-plane from LSB to MSB to maximize the amount of embedded message and to minimize the degradation. The schemes change at most two pixels in each block. Therefore, the maximal color changes of the new algorithm are much smaller than other bit-plane embedding schemes' such as the substantial substitution schemes.

• Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
• /
• 2008.05a
• /
• pp.155-158
• /
• 2008

본 연구는 여러 분야에서 언급되어지고 있는 인테리어트렌드를 조사 정리하고, 각 트렌드의 특성을 비교 분석하여 이들을 대표할 수 있는 키워드를 순수, 자연, 혼성의 3개로 추출하였다. 이를 중심으로 2008년 인테리어트렌드를 분류하고, 각 트렌드를 표현하는 색채를 조사하고 재정리하여 3개의 키워드를 대표할 수 있는 색채를 팔레트로 작성하였다. 작성된 색채 팔레트는 거주자들이 개성에 맞는 실내공간을 디자인하는데 효과적으로 활용될 것이며 디자이너와의 상호이해도 높일 수 있을 것이라 기대한다.

• Proceedings of the Korean Society of Broadcast Engineers Conference
• /
• 2009.01a
• /
• pp.396-399
• /
• 2009

In this paper, we present a method to define a color similarity between color images using Octree-based quantization and similar color integration. The proposed method defines major colors from each image using Octree-based quantization. Two color palettes to consist of major colors are compared based on Euclidean distance and similar color bins between palettes are matched. Multiple matched color bins are integrated and major colors are adjusted. Color histogram based on the color palette is constructed for each image and the difference between two histograms is computed by the weighted Euclidean distance between the matched color bins in consideration of the frequency of each bin. As an experiment to validate the usefulness, we discriminated the same clothing from CCD camera images based on the proposed color similarity analysis. We retrieved the same clothing images with the success rate of 88 % using only color analysis without texture analysis.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.16 no.2
• /
• pp.255-262
• /
• 1992

A computer simulation methiod for costume design has been developed using LUMENA, a generic-purpose 2-dimensional graphic software. In this study the palette, tone chart, fabric chart, styling chart, and costume drawing were constructed on the computer. In costume design simulation, fabric swatches with various colors and patterns were applied to the base garment image taken by using a scanner or a video camera. In this procedure the original 3-dimensional effect was fully retained. Using this simulation method, a number of costume designs could be carried out in short time without actually making the garment. A portfolio including the tone chart, fabric chart, styling chart, costume drawing, and simulation results were made for the purpose of demonstration, using the animation tools of LUMENA.