• Title/Summary/Keyword: 활용색

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Development of color space conversion algorithm for application of tooth colorimetry app (치아측색용 App 적용을 위한 색공간 변환 알고리즘 개발)

  • Jo, Jae-Hyun;Kim, Seung-Hun;Lee, Sang-Sik;Jeong, Jin-Hyoung
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
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    • v.15 no.1
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    • pp.62-68
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    • 2022
  • Due to medical and economic development, various treatment methods are being studied to restore or maintain beautiful and healthy teeth. In particular, interest in aesthetic treatment procedures such as prosthetic treatment and whitening to restore tooth loss is increasing. One of the important things in the field of prosthetics and esthetic treatment is to determine the correct color of teeth because harmony with natural teeth is an important factor in determining the perfection of esthetic prostheses. This study is about the development of a colorimetry application for tooth colorimetry using a smartphone camera. The colorimetry application UI was designed, the colorimetry algorithm was derived and the application was implemented, and the validity of the application was verified through testing the implemented application.

Effect of Artificial Dyes on Vase Life in Cut Dianthus Caryophyllus 'White Liberty' Dyed Flower (카네이션 'White Liberty'의 염색화에 따른 인공염료가 절화수명에 미치는 영향)

  • Jung, Jae Gan;Ku, Bon Soon
    • Journal of the Korean Society of Floral Art and Design
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    • no.42
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    • pp.23-35
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    • 2020
  • Standard carnations are widely used in flower design as a mass flower, but there is a limit to the use in that it can not be used in various colors in addition to its own color. The purpose of this study was to investigate how does artificial dyes affect vase life, using standard carnations, and to improve utilization of dyeing carnations in floral design. Using standard carnation 'White Liberty', dyeing experiment was performed according to four kinds of chemicals for each of six dyes. Six different dyes from Koch(Robert Koch industries Inc., USA) as follows light blue(2386), lime green(2315), christmas red(2506), lavender(2200), orange fire(2268) and black(2012) have been used and four different chemicals as follows distilled water, 4% ethanol, 3% sucrose and 100mg·L-1 citric acid have been used with the cut Dianthus caryophyllus 'White Liberty'. As a result, six different dyes showed fast and excellent dyeing with 3% sucrose and 100mg·L-1 citric acid treatment. But vase life in other dyes except black and lavender tended to be similar to control(7 days).

Recent Advances in Electrochromic Sensors (전기화학 기반의 전기 변색 센서 연구 동향)

  • Seo, Minjee
    • Journal of the Korean Electrochemical Society
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    • v.25 no.4
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    • pp.125-133
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    • 2022
  • Along with the increasing need for point-of-care diagnostics, development of portable, user-friendly, as well as sensitive sensors have gained intensive attention. Among various strategies, electrochromic sensors, which are electrochemically operated colorimetric sensors, have been actively studied. With their ability to report the presence and concentration of analytes by optical signals, electrochromic sensors utilize the advantages of both electrochemical and colorimetric sensors, enabling the simplification of device composition as well as convenient interpretation of results. Up to date, electrochromic sensors have been applied for a wide range of analytes, and further developments such as the introduction of flexible platforms or self-powered systems have been reported, providing a path towards the development of wearable sensor devices. In this review, various types of electrochromic sensors, according to the main strategy in which the electrochemical signals are converted to colorimetric signals, are introduced.

Genetic Studies on Heading-to-Ripening Period and Its Relationship to Yield Components in Barley I. Studies on maturity criteria in barley (대맥의 등숙일수와 수량구성요소와의 관계에 대한 유전연구 제I보 대맥의 생리적 성숙기 기준 설정)

  • Chun; J.U.;Lee, E.S.;Lee, H.S.
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.27 no.1
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    • pp.49-54
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    • 1982
  • Experiments were carried out to establish physiological maturity determination criteria with reference to visibly easy measurement in barley in 1980 at Suweon. Thirty-three cultivars and lines from 500 crossing blocks were classified into 4 heading groups, and 5 variables; moisture content, discoloration of awn, exsertion, lemma and flag leaf were measured. There were highly negative correlations between heading date and ripening periods (r=-0.656$^{**}$ ), so early heading types had longer ripening periods. Comparing with the variables used for maturity determination, moisture content and discoloration of lemma were most sensitive to development of grain-filling. Those two variables, alone or in combination could be used to screen many genotypes of barley for physiological maturity. In determination of maturity with reference to visibly easy measurement, color of lemma changed stably and was the most useful way and discolor of flag leaf increased the accuracy of determination. The color of lemma at this time was Grayish yellow, and the mean moisture content was about 33 percent in 33 barley cultivars and lines.

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LED Signage for Crime Prevention using Artificial Intelligence (범죄예방을 위한 LED 안내판에 대한 인공지능 연구)

  • Yang, Bee-seul;Park, Dea-woo
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2022.05a
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    • pp.180-182
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    • 2022
  • As various crimes such as theft, assault, and sex crimes are increasing, each local government is installing CCTVs to prevent them, and operating and managing control centers for emergency response. When the control center detects a dangerous situation in the field, it responds immediately in connection with the police or 911. However, since it is managed by humans, the response speed is anomalous and the reality is that it is mainly used for post-processing. Therefore, through the artificial intelligence LED signage, it notifies the emergency situation at the site, and it serves as a warning function before getting help from passers-by or an accident occurs. In this paper, we design and research a warning system such as changing the lighting color of the LED signboard or making a sound by reflecting the artificial intelligence algorithm. We intend to contribute to public safety and social safety through this study.

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A Case Study on Corporate Character Designs: A focus on Korean and the U.S. Cases (기업 캐릭터 디자인 사례 분석: 한국과 미국의 사례를 중심으로)

  • Jun, Jong Woo;Lee, Jong Yoon
    • The Journal of the Korea Contents Association
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    • v.22 no.2
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    • pp.162-172
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    • 2022
  • Using content analysis, this study explored design differences between Korean and the U.S. corporate characters. Top 100 corporate logs are collected from Korea and the United States. The results showed that Korean characters appear a group of or friends than the ones of the U.S. This result stems from the collective nature of Korea. Korea used more motif of things than the U.S., and Korean personalized characters more often that those of the U.S. Uses of human and animals did not showed statistical differences. In addition, it is found that Korea used blue as main color, and the U.S. used red as main color more often. The number of colors used in character design is not statistically different. These findings could provide academic implications that cultural differences could be adapted to corporate character marketing, and also provide managerial implications.

Development of data collection education programs for lower grades in elementary school students (초등학교 저학년을 위한 데이터 수집 교육 프로그램 개발)

  • Yi, Seul;Ma, Daisung
    • 한국정보교육학회:학술대회논문집
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    • 2021.08a
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    • pp.275-281
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    • 2021
  • Much of our lives are closely related to artificial intelligence, and society is changing more rapidly. Reflecting this era, the need for artificial intelligence education has emerged and various learning methods have been proposed, but guidance on artificial intelligence teaching and learning activities for lower grades elementary school students is insufficient. Therefore, in this study, the data collection education program for the lower grades of elementary school was developed based on the contents standards of the Korea Foundation for the Advancement of Science & Creativity. Focusing on the principles of artificial intelligence and the detailed data area of the utilization area, the focus was on expressing numbers and letters in various ways, such as colors and pictures, and finding various types of data in life to learn the principles of artificial intelligence. Through this program, it is expected that lower-grade elementary school students will be able to understand the importance of data collection in artificial intelligence through the process of knowing about data and collecting sound, picture, and text data.

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A study on the characteristics of severe trauma patients by health insurance system (건강보험제도에 따른 중증외상 환자 특성 비교 연구)

  • Choi, Mi-Young;Lee, Hyo-Ju;Yun, Seong-Woo
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2022.10a
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    • pp.309-313
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    • 2022
  • This study was attempted to analyze the status of emergency room use of severe trauma patients using the health insurance system and to understand their characteristics. This study used data from the 'Community-based Severe Trauma Surveillance' investigated from January 1, 2018 to December 31, 2019. As a result, there were differences in the degree of disability after injury and whether treatment(surgery, trauma embolism, transfusion) was performed according to the type of medical insurance (p< .001), it was found that there was a statistically significant difference between the degree of disability before and after damage depending on the type of medical insurance (p< .001). Reviews of the health insurance system located for the well-being of the people should be continued from various angles, and specific improvement plans should be proposed.

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A Two-Stage Learning Method of CNN and K-means RGB Cluster for Sentiment Classification of Images (이미지 감성분류를 위한 CNN과 K-means RGB Cluster 이-단계 학습 방안)

  • Kim, Jeongtae;Park, Eunbi;Han, Kiwoong;Lee, Junghyun;Lee, Hong Joo
    • Journal of Intelligence and Information Systems
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    • v.27 no.3
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    • pp.139-156
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    • 2021
  • The biggest reason for using a deep learning model in image classification is that it is possible to consider the relationship between each region by extracting each region's features from the overall information of the image. However, the CNN model may not be suitable for emotional image data without the image's regional features. To solve the difficulty of classifying emotion images, many researchers each year propose a CNN-based architecture suitable for emotion images. Studies on the relationship between color and human emotion were also conducted, and results were derived that different emotions are induced according to color. In studies using deep learning, there have been studies that apply color information to image subtraction classification. The case where the image's color information is additionally used than the case where the classification model is trained with only the image improves the accuracy of classifying image emotions. This study proposes two ways to increase the accuracy by incorporating the result value after the model classifies an image's emotion. Both methods improve accuracy by modifying the result value based on statistics using the color of the picture. When performing the test by finding the two-color combinations most distributed for all training data, the two-color combinations most distributed for each test data image were found. The result values were corrected according to the color combination distribution. This method weights the result value obtained after the model classifies an image's emotion by creating an expression based on the log function and the exponential function. Emotion6, classified into six emotions, and Artphoto classified into eight categories were used for the image data. Densenet169, Mnasnet, Resnet101, Resnet152, and Vgg19 architectures were used for the CNN model, and the performance evaluation was compared before and after applying the two-stage learning to the CNN model. Inspired by color psychology, which deals with the relationship between colors and emotions, when creating a model that classifies an image's sentiment, we studied how to improve accuracy by modifying the result values based on color. Sixteen colors were used: red, orange, yellow, green, blue, indigo, purple, turquoise, pink, magenta, brown, gray, silver, gold, white, and black. It has meaning. Using Scikit-learn's Clustering, the seven colors that are primarily distributed in the image are checked. Then, the RGB coordinate values of the colors from the image are compared with the RGB coordinate values of the 16 colors presented in the above data. That is, it was converted to the closest color. Suppose three or more color combinations are selected. In that case, too many color combinations occur, resulting in a problem in which the distribution is scattered, so a situation fewer influences the result value. Therefore, to solve this problem, two-color combinations were found and weighted to the model. Before training, the most distributed color combinations were found for all training data images. The distribution of color combinations for each class was stored in a Python dictionary format to be used during testing. During the test, the two-color combinations that are most distributed for each test data image are found. After that, we checked how the color combinations were distributed in the training data and corrected the result. We devised several equations to weight the result value from the model based on the extracted color as described above. The data set was randomly divided by 80:20, and the model was verified using 20% of the data as a test set. After splitting the remaining 80% of the data into five divisions to perform 5-fold cross-validation, the model was trained five times using different verification datasets. Finally, the performance was checked using the test dataset that was previously separated. Adam was used as the activation function, and the learning rate was set to 0.01. The training was performed as much as 20 epochs, and if the validation loss value did not decrease during five epochs of learning, the experiment was stopped. Early tapping was set to load the model with the best validation loss value. The classification accuracy was better when the extracted information using color properties was used together than the case using only the CNN architecture.

The Effect of Knowledge about Foods on the Foods Purchasing (식품에 대한 지식이 식품선택에 미치는 영향에 관한 조사연구)

  • 박윤정;조신호;이효지
    • Korean journal of food and cookery science
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    • v.5 no.2
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    • pp.63-73
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    • 1989
  • Family meals are very important for physical and mental health of family mebers. The purpose of this study is to contribute to change the habitual and unconscious cooking methods of housewives into more scientific moth(Ids. In order to achieve this purpose, this study tried to find out the degree to which housewives applied their knowledge of nutition and foods to actual behavior in purchasing. A special form of questionaire was prepared and distributed to 502 housewives in Seoul from Feb.8th to 22nd in 1989. The results were as follows: 1. Mean (score) of their nutritional knowledge was 14 7; if seems to be comparatively higher. 2. When they purchased food materials, their husbands' favor was the first consideration. Particularly, freshness was the first considered in purchasing meat, fishes, fruits, and vegetables. And Nutrition was so in case of seaweeds, oil, and fat. 3. For the most part, they cook three or four Subsidiary dishes for a meal. If they cooked one or two they chose to cook vegetables. If three or four they added meat and fishes. If more than four, they used various food materials.

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