• Proceedings of the Korea Information Processing Society Conference
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• 2008.05a
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• pp.123-126
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• 2008

한의학의 대중화 및 선호도 향상을 위해 가장 시급하고 중요한 일이 임상의들의 직관을 정량화 및 객관화 하는 일이다. 특히 병색을 살피는 망진(望診)의 경우 임상 현장뿐 아니라 u-헬스에 기반이 될 수 있는 진단법인 관계로 더욱 망진에 대한 정량화 작업이 시급하며 중요한 부분을 차지하고 있다. 이와 같이 망진의 공학적 융합을 통한 시스템화를 위해서는 디지털 기기의 특성상 일어날 수 있는 색 정보의 손실을 최소화 하여야 하며 색 분석을 위한 기준을 만들어 주어야 한다. 이를 위해 본 논문에서는 한의학의 찰색을 시스템 하기 위한 실험 환경 및 조건 등에 대한 기준을 제안하고, 또한 질병에 따른 특정 부위의 색상을 살피기 위해 가장 효율적인 디지털 색 체계가 무엇인지를 다양한 실험을 통해 분석한 자료를 제시하고자 한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2007.11a
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• pp.86-89
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• 2007

현대 사회의 건강관리 분야에서 기존의 서양의학이 아닌 한의학을 이용하는 것에 관심이 증대되고 있는 실정이다. 이에 한의학의 진단 이론인 사진법 중 가장 뛰어난 망진을 활용한 진단기기의 개발이 의료비 절감 및 국민건강 증진에 기여할 것으로 사료된다. 본 논문에서는 망진 중 찰색을 위한 진단기술 개발을 위한 연구를 진행 하였으며 실험을 위해 일정한 환경을 설정하고 이와 같은 환경에서 임상자료를 수집하여 색상 분석을 실행하고 디지털 색 체계 분석을 위한 연구를 진행하였다. 특히 실험을 통해 찰색에 필요한 오색(흰색, 검정색, 빨간색, 파란색, 노란색)의 추출에 적합한 디지털 색 체계로서 LAB 색체계의 효율성을 밝히고 이를 통한 실제 피부색 비교 및 분석을 진행하였다. 최종적으로 실험의 의한 피부색 분석으로 찰색에 유용한 기준 설정을 행하고자 한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2007.11a
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• pp.59-62
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• 2007

태어나면서부터 건강에 대한 욕구는 현대 사회에서 많은 부분을 차지하게 된다. 물론 어려서부터의 건강관리가 건강 수명 연장은 물론 가장 기본적인 행복한 삶의 추구까지도 보장되고 있는 실정이다. 이를 위해 본 논문에서는 한의학에서 환자의 질병을 진단하기 위해 사용되고 있는 망진(望診)과 청진(聽診)의 이론적 근거를 바탕으로 소아 감기 질환에 대한 진단 시스템을 개발하고자 한다. 특히 소아감기는 일반적으로 제일 발병률이 높은 질환으로 얼굴 부위에 열을 동반한다는 것과 울음소리가 인체의 모든 조음기관과 연관되어 있다는 한의학적 이론을 기반으로 소아의 생체신호를 분석하여 소아 감기와의 상관성을 분석하고자 한다. 이를 위해 소아 감기 환자에 대한 1차 실험으로 얼굴 영상에서의 열 관련 여부에 대한 색상 분석을 행하였으며 2차 실험으로는 조음기관에 대한 성분음을 추출하는 스펙트럼 분석을 수행하였다. 이를 통해 정상 소아와 감기 질환을 앓고 있는 소아 환자간의 차이점을 추출하고자 한다.

• Korean Journal of Heritage: History & Science
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• v.54 no.2
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• pp.78-97
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• 2021

Seojangdaeyajodo is a drawing of military night training on February 12th (lunar leap month), 1795. Focusing on the Seojangdaeyajodo, the characteristics and of the costumes worn by various types of officials were examined. There were 34 officials located near King Jeongjo in and around Seojangdae, with 27 Dangsanggwan and 7 Danghagwan. They wore three types of costumes, including armor, yungbok, and military uniforms. All of the twelve armor wearers and the five officials wearing yungbok were dangsanggwan, and the military uniform wearers included eleven dangsanggwan and six danghagwan. For the shape of the armor, the armor relics of General Yeoban, suitable for riding horses, and the armor painting of Muyedobotongji were referenced, and the composition of the armor was based on practicality. The armor consists of a helmet, a suit of armor, a neck guard, armpit guards, arm guards, and a crotch guard. The color of the armor was red and green, which are the most frequently used colors in Seojangdaeyajodo. The composition of yungbok was jurip, navy cheollik, red gwangdahoe, socks made of leather, and suhwaja. The composition of the military uniform was a lined jeolrip, dongdari, jeonbok, yodae, jeondae, and suhwaja. There were differences in the fabrics used in dangsanggwan and danghagwan military uniforms. Dangsanggwan used fabric with depictions of clouds and jewels, and danghagwan used unpatterned fabric. Moreover, jade, gold, and silver were used for detailed ornamental materials in dangsanggwan. The weapons included bows and a bow case, a sword, a rattan stick, wrist straps, and a ggakji. In the records of the King Jeongjo period, various colored heopsu were mentioned; the colors of the dongdari and jeonbok of dangsanggwan and danghagwan were referenced in various colors. It was presented as an illustration of costumes that could be used to produce objects accurately reflecting the above historical results. The basic principle of the illustration was to present the modeling standards for 3D content production. Samples of form, color, and material of the corresponding times and statuses were presented. The front, the side, and the back of each costume and its accessories were presented, and the colors were presented in RGB and CMYK.

• Journal of the Institute of Electronics Engineers of Korea SD
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• v.38 no.8
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• pp.62-71
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• 2001

This paper presents a design of the real-time digital image enhancement preprocessor for CMOS image sensor. CMOS image sensor offers various advantages while it provides lower-quality images than CCD does. In order to compensate for the physical limitation of CMOS sensor, the spatially adaptive contrast enhancement algorithm was incorporated into the preprocessor with color interpolation, gamma correction, and automatic exposure control. The efficient hardware architecture for the preprocessor is proposed and was simulated in VHDL. It is composed of about 19K logic gates, which is suitable for low-cost one-chip PC camera. The test system was implemented on Altera Flex EPF10KGC503-3 FPGA chip in real-time mode, and performed successfully.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.10 no.10
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• pp.2873-2878
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• 2009

Since Germany was unified in 1990, Korea became the only country that has the division in the world. This division has various bad effects on Korea's status with not reliable security, forfeited national impression, loss of tourism income and so on. Kim Jung-Il national defense committee chairman is the current dictator of North Korea which is a socialist state. Even if he is getting old, his successor is not proclaimed. In this situation, his sudden aggravation of health can cause seriously bad effects on diplomatic relations especially with South Korea. Therefore, the health information about Kim Jung-Il national defense committee chairman will be very important information. In order to deal this problem, we propose the method of extracting the Kim Jung-Il national defense committee chairman's health from his pictures which are recently open to the public by employing the diagnosis Ocular Inspection used in Oriental medicine. n order to get an accurate result, revising the Kim Jung-Il national defense committee chairman's pictures, which are not taken in a controled equal situation, is necessary. Therefore we employed the color analysis process with color revising and color differential comparing process without color revising. With these processes, we can make diagnosis of his diabetes and complications.

• Journal of the East Asian Society of Dietary Life
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• v.20 no.6
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• pp.896-902
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• 2010

Omija contains high organic acid content (5~7%) that must be reduced in order to produce high quality wine for consumption. In this study, we used pear, which has low total acid but plenty of sugar, to relieve the sourness of Omija material. Our group mixed Omija and pear at a ratio of 1:9 to 1:15 in order to attain a 0.5~0.7% total acid level, similar to commercial wine. As Omija was mixed with pear, the red color of Omija changed to a lighter red color. Alcohol fermentation solution of Bokbunja and Gaeryangmeoru were used to make up for the light red color of Omija pear wine. The red color of Bokbunja was confirmed to be similar to the original red color of Omija. It was proven that addition of 3~5% Bokbunja to Omija pear mixture wine produced replicated the red color image of Omija. Our results show that addition of 2~5% xylitol to Omija pear mixture wine was good by sensory test.

• Food Science and Preservation
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• v.10 no.2
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• pp.158-161
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• 2003

The six-year old fresh ginseng harvested at earlier October was stored for 10 weeks in the rendition of 4$^{\circ}C$${\pm}$1$^{\circ}C$ and RH 87∼92%, and the sugar content and the change of color was investigated in an interval of one week by taking sample of it after processed it to red ginseng. The total sugar content was 62.71% before it was stored and was a little reduced to 54.58% after 10 weeks of storage. The reducing sugar content was 11.69% before it was stored and was a little reduced to 9.92% after 7 weeks of storage. For the free sugars, the content of fructose was 0.47% before storage and gradually increased to 4.70% after 10 weeks of storage, and the contents of glucose and sucrose were gradually decreased after they have their peak value of 2.31% and 25.89% at five and three weeks of storage. The content of maltose was 6.62% before storage and it gradually reduced to 1.37％ after 10 weeks of storage. The color intensity was generally increased with the storage time, and the total rotor value(ΔE) has its peak value of 8.89 after 9 weeks of storage. For the browning pigment, the absorbance of 420nm and 440nm was increased after 6 weeks of storage. The similar trend was observed at 285nm where the precursor of browning pigment was investigated, however, the change was not observed for the freeze dryed ginseng.

• Korean Journal of Poultry Science
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• v.49 no.3
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• pp.157-165
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• 2022

Chickens are a species of vertebrate with varying colors. Various colors of chickens must be classified to find color-related genes. In the past, color scoring was performed based on human visual observation. Therefore, chicken colors have not been measured with precise standards. In order to solve this problem, a computer vision approach was used in this study. Image quantization based on k-means clustering for all pixels of RGB values can objectively distinguish inherited colors that are expressed in various ways. This study was also conducted to determine whether plumage color differences exist in the reciprocal cross lines between two breeds: black Yeonsan Ogye (YO) and White Leghorn (WL). Line B is a crossbred line between YO males and WL females while Line L is a reciprocal crossbred line between WL males and YO females. One male and ten females were selected for each F₁ line, and full-sib mating was conducted to generate 883 F₂ birds. The results indicate that the distribution of light and dark colors of k-means clustering converged to 7:3. Additionally, the color of Line B was lighter than that of Line L (P<0.01). This study suggests that the genes underlying plumage colors can be identified using quantification values from the computer vision approach described in this study.

• Microbiology and Biotechnology Letters
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• v.28 no.2
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• pp.111-116
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• 2000

Cultural conditions for the production of water-soluble pigment from mycelial culture of Cordyceps scarabaeicola KEFC-C252 and antimutagenic activity of the pigment were investigated. To obtain the maximum productivity of the pigment from mycelial culture of C. scarabaeicola KEFC-C252, the optimized medium was made with 1.5% sucrose, 2.5% yeast extract and initial pH 5.5. C. scarabaeicola KEFC-C252 was cultivated to reach the maximum concentration of the pigment at $26^{\circ}C$ for 108 hrs. C. scarabaeicola KEFC-C252 produced about 1.2 g/liter pigment under the optimized condition. The pigment was isolated from the culture filtrate by ethylacetate extraction, acidic precipitation and crystallization. The isolated pigment was scarlet hexagonal column crystal, and the color of the pigment was changed according to pH of the solution. The pigment showed violet in the alkaline water but showed red color in the acidic water. The pigment showed inhibitory activity against mutagenic activity induced by 4-nitroquinoline N-oxide. Furthermore, the pigment showed inhibitory activity against spontaneous mutation on Salmonella typhimurium TA98 and TAlOO.