• 한국농촌건축학회논문집
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• 제13권4호
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• pp.51-58
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• 2011

The purpose of this study was analyzing the features of architectural colors in Hongseong-gun and proposing environmental color design for regional identity color. According to the analysis, Hongseong's base colors are YR of low hue value and grayish tone colors. But a lot of signs and outdoor billboards mar the beauty of the environmental color. So it is more important to solve the problems as well as new environmental color design. The results are as follows; 1) Naepo Color Palette of 2009 Chungnam Public Design Master Plan would be an accepted principal for the contextual landscape image of Chungnam in macro perspective. 2) Outdoor signboards must be controlled and improved for the harmony of the buildings dominant colors. 3) Roof color would arrange R or grayish of deep tone colors those are similar balance of Hongseong base color YR, and gate color would have clear principles of the order such as chromatic or brightness contrast in housing. 4) Forming of future oriented image of Hongseong need to be considered first as to whether it is harmonious tones with existing local base colors.

• 한국수정란이식학회지
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• 제28권3호
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• pp.215-222
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• 2013

Bovine coat color is decided by the melanocortin receptor 1 (MC1R) genotype mutation and melanogenesis. Specially, in the various cattle breeds, dominant black coat color is expressed by dominant genotype of $E^D$, red or brown is expressed in the frame shift mutation of recessive homozygous e by base pair deletion and wild type of $E^+$ is expressed in various coat colors. However, not very well known about the effected of MC1R genotype mutation on the coat color through family lines in KBC. Therefore, this study were to investigate effect of MC1R genotype mutation on the coat color, and to suggest mating breed system in accordance with of MC1R genotype for increased on brindle coat color appearance. Parents (sire 2 heads and dam 3 heads) and offspring (total : 54 heads) from crossbreeding in KBC family line with the MC1R genotype and phenotype records were selected as experimental animals. The relationship between melanocortin 1 receptor (MC1R) genotypes expression verified by PCR-RFLP, and brindle coat color appearance to the family line of the cross mating breed from MC1R genotype pattern was determined. As a result, 4MC1R genetic variations, $E^+/E^+$ (sire 1), $E^+/e$ (sire 2 and dam 3), $E^+/e$ with 4 bands of 174, 207 and 328 bp (dam 1) and $E^+/e$ with 3 bands of 174, 207, 328 and 535 bp (dam 2) from parents (sire and dam) of KBC. However, 3 genetic variations, e/e (24%), $E^+/E^+$ (22%) and $E^+/e$ (56%) were identified in offspring. Also, brindle coat color expressrated was the e/e with the 0%, $E^+/E^+$ with 67% and $E^+/e$ with 77% from MC1R genotype in offspring on the cross mating of KBC. Furthermore, when the sire had $E^+/e$ genotype and the dam had $E^+/E^+$ with the 3 bands or $E^+/e$ genotype, and both had whole body-brindle coat color, 62% of the offspring had whole body-brindle coat color. Therefore, the seresults, the mating system from MC1R genotype patterns of the sires ($E^+/e$) and dams ($E^+/E^+$ with the 3 bands or $E^+/e$) with brindle coat color may have the highest whole body-brindle coat color expression in their offspring.

• 한국주거학회논문집
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• 제22권5호
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• pp.29-36
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• 2011

The inconsistent city planning damaged the city's landscape & identity, the old days. Nowadays the central and local governments are interested in the city's landscape design for residents, economic reason, etc. Color is most efficient one of design elements to improve a city landscape. So to establish the uniqueness and beauty of Gunsan city landscape, this study was performed to find out Gunsan landscape colors to survey the landscape color, by priority. There are nature environment of sea, river, reservoir, mountains and plain and artificial environment of buildings used japanese occupation period, them in early modern era and modern things. It found out the color palette has extracted from the present colors in the city landscape. There were mostly colors with low chroma, middle value and the next thing was them with high value. The blue among hue was strong. The Chroma was very low to be concentrated in $L^*$ axis. So achromatic color or blue/green of middle value and low chroma were recommended for dominant color and the similar color of former color was good for assort color in Gunsan city landscape.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2001년도 제14회 신호처리 합동 학술대회 논문집
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• pp.641-644
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• 2001

멀티미디어 검색을 위한 MPEG-7 표준화 작업이 완료되어감에 따라, 멀티미디어 특징 기술자를 활용한 다양한 응용들이 나타나고 있다. 본 논문에서는 미키 마우스, 포켓 몬스터 또는 호돌이와 같은 지적 재산 정보인 동시에 고부가가치 대상인 캐릭터 이미지를 대상으로 하여, 캐릭터 이미지 특징을 분석하고, MPEG-7 에서 정의된 컬러 기술들간의 검색 효율을 비교하여, 캐릭터 이미지에 가장 적합한 기술자를 제안한다. 캐릭터 이미지는 자연 이미지와는 달리, 질감(Texture)이나 모양 (Shape)정보에 비해, 주로 컬러 정보에 의존하며,존재하는 컬러의 수가 3-6 개 범위 내에 주로 존재하고, 컬러의 분포가 고르며, 질감 성분이 많지 않은 특징을 갖고 있다. MPEG-7 에 정의된 Dominant Color, Scalable Color, Color Layout 및 Color Structure 4 종류의 기술자를 캐릭터 이미지 특징에 맞는 기술자를 유형별로 분류된 3,834개의 이미지 셋에 적용하여, 검색 성능 평가 지수인 ANMRR(Average Normalized Modified Retrieval Rank) 를 측정하여 가장 효율적인 기술자를 정의한다.

• 한국멀티미디어학회논문지
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• 제4권1호
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• pp.29-36
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• 2001

본 논문에서는 회전 주사 패턴을 사용하여 영상 검색을 위한 효율적인 영상 기술 방법을 제안하였다. 본 논문에서 근회전 주사 패턴을 영상 중심부에 위치시키고, 이를 이용하여 공간 칼라 정보를 기술하였다. 사용된 특징은 회전 대표 칼라와 회전 칼라 질감 그리고 회전 칼라 변화도이다. 제안 방식은 영상의 색상 정보와 그와 관련된 국부적 공간 분포를 효율적으로 기술할 수 있었다. 따라서 위 방식은 영상 검색에 있어 기존방식에 비하여 계산량, 메모리 사용량 등을 줄일 수 있었다.

• 한국지진공학회:학술대회논문집
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• 한국지진공학회 2002년도 추계 학술발표회 논문집
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• pp.61-71
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• 2002

Color-code imaging should be one of the best display tools for the quick perception of both damage area and its intensity, In this study we proposed the standard color code corresponding to maximum observed acceleration value. Since the acceleration value changes with frequency contents, we suggested to limit the frequency band less than 10Hz. The background considerations of this limitation, magnitude vs. dominant frequency, natural characteristics of artificial noises and the relationship between velocity and acceleration, were reviewed in detail. The standard of color code was assigned from 0.001%g to 20%g based on the possible earthquakes at Korean peninsula and the color imaging given by RGB value was shown to be very consistent, irrespective of hardware configuration.

• 전자공학회논문지CI
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• 제45권2호
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• pp.48-55
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• 2008

본 논문은 영상 분할 기법 및 특징 점 추출 기법을 이용한 객체 추출 방법과 영상 검색 방법을 제안한다. 제안하는 방법은 크게 네 단계의 과정으로 이루어져 있다. 첫 번째 단계에서는 데이터베이스 영상에 대해서 JSEG 알고리즘을 이용하여 영상을 분할한다. 두 번째 단계에서 각 분할된 영역과 질의 영상에서 대표 색상을 추출하고, 색상 히스토그램을 생성한다. 질의 영상과 데이터베이스 영상의 각 영역간의 대표 색상과 색상 히스토그램을 비교한 결과를 종합하여 객체 후보 영역을 추출한다. 영상분할 과정에서 지나치게 분할된 영역을 위해 인접해 있는 후보 영역들을 합병한다. 세 번째 단계에서는 각 후보 영역과 질의 영상에서 DoG(Difference of Gaussian) 피라미드의 극치 점으로부터 영상의 크기 변화에 일관된 중요 특징 점들을 추출한다. 추출된 특징 점들을 정합하여 질의 영상에 해당하는 객체를 검출한다. 마지막 단계에서는 질의 영상과 객체 영역이 추출된 DB 영상과의 유사도 측정을 통한 검색을 수행하며, 유사도 측정은 색상 상관도표(Color correlogram)를 사용한다. 실험 결과를 통하여 본 논문에서 제안하는 영상 검색 방법은 질의 객체 영상에 대해 영상 전체를 비교하는 것이 아니라 객체가 존재하는 영역을 추출한 후 유사도를 측정함으로써, 배경에 의한 오검색률이 감소하고, 검색 성능이 향상됨을 확인하였다.

• 한국실내디자인학회논문집
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• 제34호
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• pp.114-123
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• 2002

Koreans have regarded the red as a major color from old times. The red is a traditional color to have symbols of high position, national foundation and especially royalty. So, we can see the reds in the palace for kings very much.The purpose of this study is to draw out the features of color red in the Kyungbok palace. The color was analyzed by two categories-architectural buildings${\cdot}$structures and ornamental painted patterns. The major findings from this research are summarized as follows:1. Seokganju(similar to terra rossa) and toyugsaek(light seokganju) are found main colors in architectural space, while seokganju has a linear effect and toyuk has a facial effect. 2. Yugsaek(similar to light vermillion) and Jangdan(similar to orange) are found main colors in ornamental painted patterns. These colors are more vivid and brighter than those for architectural space.3. As for two-color combination, reds and blues(including greens) are found major combination both of architectural space and ornamental patterns. And reds and white are the following combination, which gives an bright image by white. 4. As for three-color combination, red-white-black combination of pediment and red-blue-white combination of openings are found very popular in architectural space, while red-blue-yellow combination is most popular in ornamental patterns.The reds are found dominant color of both architectural space and ornamental patterns in the Kyungbok palace. The color design as shown in the Kyungbok palace can be considered as the feature of traditional color design.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제13권6호
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• pp.3108-3120
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• 2019

Point cloud is widely used in 3D applications due to the recent advancement of 3D data acquisition technology. Polygonal mesh-based compression has been dominant since it can replace many points sharing a surface with a set of vertices with mesh structure. Recent point cloud-based applications demand more point-based interactivity, which makes point cloud compression (PCC) becomes more attractive than 3D mesh compression. Interestingly, an exploration activity has been started to explore the feasibility of PCC standard in MPEG. In this paper, a new color attribute compression method is presented for point cloud data. The proposed method utilizes the spatial redundancy among color attribute data to construct a color palette. The color palette is constructed by using K-means clustering method and each color data in point cloud is represented by the index of its similar color in palette. To further improve the compression efficiency, the spatial redundancy between the indices of neighboring colors is also removed by marking them using a flag bit. Experimental results show that the proposed method achieves a better improvement of RD performance compared with that of the MPEG PCC reference software.

• 한국실내디자인학회논문집
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• 제15권1호
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• pp.147-157
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• 2006

The purpose of this study is to fond out the characteristics of color perception and preferred color scheme of the aged who becomes color weak due to yellowed eye sight. For this, this study was composed of two steps. First, an experimental simulation on aged vision using Spectrophotometer(CM-2600d, Minolta) attached Y-2 filter as a quasi lenses of the aged eye. The color data of 120 color chips of the aged vision was measured and analyzed to grasp the characteristics of color perception of the age. Then, a questionnaire survey was carried out with color chips and 8 interior color schemes. They participated in a questionnaire survey of the level of identification among the color chips of 11 tones of R, G, PB, as well as a survey of the preference color schemes. The result of this study are as follow; 1) The range of color perception on hue narrowed into YR, Y, GY, G. Especially, the aged have failed perception of B${\cdot}$PB${\cdot}$P${\cdot}$RP(short wave length of light) by yellowed eye sight. 2) The level of identification among the color chips of 11 tones of R,G,PB are different by each color. But Very Pale, Pale, Strong, Vivid are fractionated similarly in almost color. 3) In the preference of interior color scheme of the aged, preference color harmony scheme Is the complementary color scheme that is easy for identification, rather than analogous color scheme. The preferred dominant color is warm color rather than cool color.