• Title/Summary/Keyword: ART-1

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Development of Human Detection Algorithm for Automotive Radar (보행자 탐지용 차량용 레이더 신호처리 알고리즘 구현 및 검증)

  • Hyun, Eugin;Jin, Young-Seok;Kim, Bong-Seok;Lee, Jong-Hun
    • Transactions of the Korean Society of Automotive Engineers
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    • v.25 no.1
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    • pp.92-102
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    • 2017
  • For an automotive surveillance radar system, fast-chirp train based FMCW (Frequency Modulated Continuous Wave) radar is a very effective method, because clutter and moving targets are easily separated in a 2D range-velocity map. However, pedestrians with low echo signals may be masked by strong clutter in actual field. To address this problem, we proposed in the previous work a clutter cancellation and moving target indication algorithm using the coherent phase method. In the present paper, we initially composed the test set-up using a 24 GHz FMCW transceiver and a real-time data logging board in order to verify this algorithm. Next, we created two indoor test environments consisting of moving human and stationary targets. It was found that pedestrians and strong clutter could be effectively separated when the proposed method is used. We also designed and implemented these algorithms in FPGA (Field Programmable Gate Array) in order to analyze the hardware and time complexities. The results demonstrated that the complexity overhead was nearly zero compared to when the typical method was used.

Motion Analysis Using Competitive Learning Neural Network and Fuzzy Reasoning (경쟁학습 신경망과 퍼지추론법을 이용한 움직임 분석)

  • 이주한;오경환
    • Journal of the Korean Institute of Intelligent Systems
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    • v.5 no.3
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    • pp.117-127
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    • 1995
  • In this paper, we suggest a motion analysis method using ART-I1 competitive learning neural network and fuzzy reasoning by matching the same objects through the consecutive image sequence. we use the size and mean intensity of the region obtained from image segmentation for the region matching by the region and use a ART-I1 competitive learning neural network wh~ch has a learning ability to reflect the topology of the input patterns in order to select characteristic points to describe the shape of a region. Motion vectors for each regions are obtained by matching selected characteristic points. However, the two dimensional image, the projection of the the three dimensional real world, produces fuzziness in motion analysis due to its incompleteness by nature and the error from image segmentation used for extracting information about objects. Therefore, the belief degrees for each regions are calculated using fuzzy reasoning to l-nanipulate uncertainty in motion estimation.

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Potentials and Challenges of the Usability of Art Museum Mobile Applications (미술관 모바일 애플리케이션의 사용성에 대한 잠재력과 문제점)

  • Rhee, Boa
    • Journal of the Korea Society of Computer and Information
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    • v.20 no.4
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    • pp.103-110
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    • 2015
  • The biggest challenge of managing mobile interpretative device is that visitors do not have the mobile experience. Thus, in the research of the mobile application of the Leeum (Samsung Museum of Art), a short orientation session as a treatment was provided to survey participants to make them use of a mobile experience. The orientation solved the problem of hesitancy of using smartphone in other researches, it was simultaneously the uniqueness of the methodology. Based on the research data, their satisfaction with visiting experience and with using the application appeared to be relatively high. A half of participants used the application for 10 minutes which is accounted for 20-30% of the total viewing time. Participants (80.3%) engaged in each exhibit with the application in less than 30 sec.-1 minute. Comparing with the average time of engagement (10-30 sec.) for each exhibit without using mobile applications, it is possible to conclude that the mobile application notably contributed to make participants engage with exhibits longer.

Effects of Active Release Technique and Lumbar Stabilization Exercise on Pelvic Asymmetry, Muscle Activation and Pain in Chronic Low Back Pain Patients (능동이완기법과 허리안정화 운동이 만성허리통증 환자의 골반비대칭, 근활성도 및 통증에 미치는 영향)

  • Nam, Seungmin
    • Journal of The Korean Society of Integrative Medicine
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    • v.8 no.1
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    • pp.147-157
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    • 2020
  • Purpose : The purpose of this study was to investigate the effects of active release technique and lumbar stabilization exercise on pelvic asymmetry, muscle activation and pain in chronic low back pain patients. Methods : The subjects were 37 outpatients diagnosed with chronic low back pain. The patients were randomly divided into an active release technique therapy group (ART; n=18), and lumbar stabilization exercise group (LSE; n=19). These groups performed their respective therapy for a 30-minute session occurring two times a week over six-weeks period. To assess the patients' pelvic asymmetry, their pelvic tilt, and pelvic rotation was measured using X-ray imaging. EMG was used to evaluate the muscle activity of the lumbar muscle. The visual analogue scale (VAS) were used to measure the subjects' pain. Results : Both ART group, and LSE group exhibited statistically significant differences in their subjects' VAS and muscle activation of lumbar muscle after the therapy (p<.05). In ART group exhibited statistically significant decreases in their subjects' pelvic tilt and pelvic rotation after therapy (p<.05). There was a significant difference between the ART group, and LSE group (p<.05). Conclusion : The results of this study suggest that active release technique and lumbar stabilization exercise are effective in decrease pain and increase muscle activation in chronic low back pain patient. In addition active release technique is considered to be more effective in improving pelvic tilt and pelvic rotation than lumbar stabilization exercise.

Criticism as a Protective Device of Art (비평의 본질로서의 예술성과 비평의 제문제)

  • 김춘희
    • Lingua Humanitatis
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    • v.1 no.2
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    • pp.141-158
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    • 2001
  • Criticism of today finds itself in an awkward situation, for it is now being transformed in the same way that literature and the arts were transformed by the avant-garde movements at the end of the 19th century and the beginning of the 20th century. It is characterized predominantly by a break with harmony and with the values of realism. As such, it is driven by a post-modem ethos, an artistic, social, and cultural phenomenon that veers toward open, fragmentary, and indeterminate forms. In this paper, I examine today's most urgent social and cultural issues with reference to artistic production and criticism, in order to illuminate the true nature of criticism. The outstanding questions in the world of art criticism are given in five categories: the lack of critical reality in argumentative criticism; the problem of artistic and literary production in global capitalism; the artistic mind and its consciousness of socio-historical ideology; anxiety of the rise of cyberjournalistic criticism; and the question of subordination to western systems in the field of interpretation and criticism. For my analysis, I have tried to formulate a three-dimensional critique structure that will help us organize the relationships between the points of argument: 1) criticism as a creative force behind the artist; 2) criticism as critique of artistic production; and 3) criticism as critique of other critics. This multi-layered structure will be appropriate to our task of interpretation and evaluation, as the proposed complex structure of criticism will be able to embrace the diverse aspects of our problematic argument. In the final analysis, my argument resolves itself into a question of art, more specifically into a question of criticism as a protective device of art in an age threatened by globalization and cultural monopolization.

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Sign Language Recognition Using ART2 Algorithm (ART2 알고리즘을 이용한 수화 인식)

  • Kim, Kwang-Baek;Woo, Young-Woon
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.12 no.5
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    • pp.937-941
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    • 2008
  • People who have hearing difficulties use sign language as the most important communication method, and they can broaden personal relations and manage their everyday lives without inconvenience through sign language. But they suffer from absence of interpolation between normal people and people who have hearing difficulties in increasing video chatting or video communication services by recent growth of internet communication. In this paper, we proposed a sign language recognition method in order to solve such a problem. In the proposed method, regions of two hands are extracted by tracking of two hands using RGB, YUV and HSI color information from a sign language image acquired from a video camera and by removing noise in the segmented images. The extracted regions of two hands are teamed and recognized by ART2 algorithm that is robust for noise and damage. In the experiment by the proposed method and images of finger number from 1 to 10, we verified the proposed method recognize the numbers efficiently.

A Study on the Characteristic Expression of Korean Traditional Costumes shown in the Korean Paintings by Kim Hyun-Jung (김현정의 한국화에 나타난 한국 전통 복식의 표현 특성 연구)

  • Na, Yoo-Shin
    • Journal of Fashion Business
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    • v.23 no.2
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    • pp.124-139
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    • 2019
  • The purpose of this study was to examine the characteristic expression of Korean traditional costumes shown in the Korean paintings by Kim Hyun-Jung. The study analyzed the paintings by Kim Hyun-Jung to find out the characteristics of the contemporary Korean paintings and the expression of Korean traditional costumes. The characteristics of Kim Hyun-Jung's works are as follows: 1) The paintings are drawn by using Korean traditional painting methods and finished with Korean traditional paper, hanji. Moreover, they show the Korean traditional costume as main subject material. 2) They use modern painting methods, such as collage, and show pop art characters by use of contemporary popular products. 3) The artist communicates with the public through SNS and YouTube, and shows characteristics of popular art through commercial art products and advertisements. The characteristics of the Korean traditional costume in Kim Hyun-Jung's works are as follows. 1) The hanbok shown in the paintings is a traditional style with tight jeogori and wide chima. Chima is drawn in thin coloring with Korean ink and jeogori is expressed with semi-transparent hanji in various patterns and colors, which shows the subject 'coy'. 2) Various kinds of Korean traditional accessories and modernized flower shoes with high heels are shown as subject materials. The art works by contemporary Korean artists are expected to be the route to give valuable information to the public about Korean traditional costumes as well as the trendy Korean culture.

Art Mask Designs with Decorative Characteristics of the Rococo Age (로코코 시대의 장식적 특성을 응용한 아트마스크 디자인)

  • Oh, Su Min;Rhee, Young Ju
    • Journal of the Korea Fashion and Costume Design Association
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    • v.24 no.1
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    • pp.15-33
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    • 2022
  • The purpose of this study was to categorize the decorative characteristics of the Rococo Age, which displays the most glamorous and elegant decorative beauty, in architecture, interior decorations, paintings, and patterns, and to analyze these characteristics and graft them onto art masks in a modern way. Piece I is a mixed media piece that based its motif on the ceilings and pulpits of the German Vis Pilgrimage Church, which is representative architecture of the Rococo Age. It was glamorously produced using gold and cubic zirconia. Piece II is also a mixed media piece that borrowed its motif from the exterior and gazebo of the Sanssouci Palace in Germany, another representative piece of architecture from the Rococo Age, and it was produced to clearly display the image of the Sanssouci Palace, using emerald and ivory. Piece III applies the furniture trends of the Rococo Age. Curves in S and C shapes, which can often be found in Chinese furniture, along with dark backgrounds, common in portrait paintings, were applied to give a sense of weight and dignity. Piece IV is an application of the fabric patterns of the Rococo Age. Continuous patterns of flowers and greenery stems were drawn on the mask to recreate the fabric patterns of the age. Piece V used the painting 'Swing' of the Rococo Age as its inspiration. Lace and ribbon decorations were used to emphasize feminine beauty and express the loveliness of the woman that appears in the painting. Piece VI borrows from the painting 'Madame de Pompadour' of the Rococo Age and the clothing worn by Pompadour. This piece grafted colors and themes through the painting and expressed a fusion of the dresses of Pompadour and lace that is clearly displayed in the architecture, paintings, clothing, interior decorations, and patterns of the Rococo Age, along with the rocaille (asymmetrically shaped decorations that resemble clams), flowers, leaves, stems, and Chinoiserie styles. These motifs clearly display the decorative characteristics of the age and these were grafted them onto art masks, confirming that it is possible to create new designs.

Application of Finite Element Analysis for Structural Stability Evaluation of Modern and Contemporary Sculptures: 'Eve 58-1' by Man Lin Choi

  • Kwon, Hee Hong;Shin, Jeong Ah;Cho, Nam Chul
    • Journal of Conservation Science
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    • v.38 no.4
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    • pp.277-288
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    • 2022
  • 'Eve 58-1', the subject of this study is a statue made of plaster and its structural stability was evaluated by utilizing the CAE program in order to prevent the risk of damage arising from impact and vibration that are generated during the packaging and transportation process given its material characteristics. CAE is an abbreviation for Computer Applied Engineering for realization by predicting changes at the time of application of virtual physical energy. It is applied by reflecting the physical property conditions and each boundary condition of plaster, and the digital images of the internal and external structure of the work were acquired through 3D scanning and CT analysis for interpretation by executing finite element modeling. When acceleration is applied to the work in the direction of its own weight, the left-right side and the front-rear side, it was possible to confirm a maximum displacement value of 15.24 mm in the head section of the front-rear side direction that has been tilted by approximately 27° from the Y-axis and the largest stress value of 12.46 MPa was at the left ankle section. The corresponding results confirmed that the left ankle section is the most vulnerable area and the section for which precautions need to be exercised and supplemented at the time of transporting the work by means of objective values.

Analysis of 2015 Revised SW Curriculum in Elementary and Middle School based on Core Competency (핵심 역량 중심 2015 개정 초·중학교 SW교육과정 분석)

  • Ahn, Sung Hun;Lee, Sanghyeon
    • Journal of Creative Information Culture
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    • v.5 no.1
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    • pp.63-70
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    • 2019
  • In this paper, we analyzed 2015 revised curriculum for elementary school's practical art and middle school's information subject based on core competency. As a result, in 2015 revised curriculum for practical art subject, the ability to use information was well reflected in all achievement criteria and learning objectives. Also, problem solving ability and creativity·convergence ability were well reflected. In 2015 revised curriculum for information subject, the ability to use information was well reflected in all achievement criteria and learning objectives as like practical art subject. However, there were fewer learning elements to develop self-management ability. Therefore, it is proposed in this paper that the learning elements and teaching, learning activities and evaluation contents should be included in the SW curriculum, which can further enhance cooperative capabilities, self-management ability and communication ability.