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Visible and NIR Image Synthesis Using Laplacian Pyramid and Principal Component Analysis (라플라시안 피라미드와 주성분 분석을 이용한 가시광과 적외선 영상 합성)

  • Son, Dong-Min;Kwon, Hyuk-Ju;Lee, Sung-Hak
    • Journal of Sensor Science and Technology
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    • v.29 no.2
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    • pp.133-140
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    • 2020
  • This study proposes a method of blending visible and near infrared images to enhance edge details and local contrast. The proposed method consists of radiance map generation and color compensation. The radiance map is produced by a Laplacian pyramid and a soft mixing method based on principal component analysis. The color compensation method uses the ratio between the composed radiance map and the luminance channel of a visible image to preserve the visible image chrominance. The proposed method has better edge details compared to a conventional visible and NIR image blending method.

Improving the Rendering Speed of 3D Model Animation on Smart Phones

  • Ng, Cong Jie;Hwang, Gi-Hyun;Kang, Dae-Ki
    • Journal of information and communication convergence engineering
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    • v.9 no.3
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    • pp.266-270
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    • 2011
  • The advancement of technology enables smart phones or handheld devices to render complex 3D graphics. However, the processing power and memory of smart phones remain very limited to render high polygon and details 3D models especially on games which requires animation, physic engine, or augmented reality. In this paper, several techniques will be introduced to speed up the computation and reducing the number of vertices of the 3D meshes without losing much detail.

Restoration of Images Contaminated by Mixed Gaussian and Impulse Noise using a Complex Method

  • Yinyu, Gao;Kim, Nam-Ho
    • Journal of information and communication convergence engineering
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    • v.9 no.3
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    • pp.336-340
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    • 2011
  • Many approaches to image restoration are aimed at removing either gauss or impulse noise. This is because both types of degradation processes are distinct in nature, and hence they are easier to manage when considered separately. Nevertheless, it is possible to find them operating on the same image, which produces a hard damage. This happens when an image, already contaminated by Gaussian noise in the image acquisition procedure, undergoes impulsive corruption during its digital transmission. Here we proposed an algorithm first judge the type of the noise according to the difference values of pixel's neighborhood region and impulse noise's characteristic. Then removes the gauss noise by modified weighted mean filter and removes the impulse noise by modified nonlinear filter. The result of computer simulation on test images indicates that the proposed method is superior to traditional filtering algorithms. The proposed method can not only remove mixed noise effectively, but also preserve image details.

Seismic Performance of RC Multi-Column piers with Reinforcement Details (RC 다주교각의 철근상세에 따른 내진성능 평가)

  • 김재관;김익현;김정한;조대연
    • Proceedings of the Korea Concrete Institute Conference
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    • 2002.05a
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    • pp.873-878
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    • 2002
  • This study is performed to investigate the behavior of multi-column piers and to evaluate the seismic performance. In this study, 3 types of scale model piers with 2-column are designed and tested by quasi-static load in both longitudinal and transverse directions. Each type of model consisting of 2 specimens has different reinforcement details in the lap splice of longitudinal bars and amount of transverse reinforcements. This paper reports that relatively large amount of ductility can be achieved by providing sufficient lap-splice length and transverse reinforcements with end hook even if longitudinal bars are lap spliced in the base of pier. But because multi-column piers have small longitudinal stiffness, careful consideration is needed in case of multi-span continuous bridges.

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Feminizing Trends on Men's Knitwear in the 21st Century - Focusing on the Metrosexual and Crossexual - (21세기 남성 니트웨어에 나타난 여성화 경향 - 메트로섹슈얼과 크로스섹슈얼을 중심으로 -)

  • Kim, Kyung-In
    • Fashion & Textile Research Journal
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    • v.8 no.4
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    • pp.382-390
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    • 2006
  • In the 21st century, men is expressing the femininity instead of the muscularity. And a boundary line between a man and a woman is not clear any more. A man is interested in the lifestyle of a woman, and he imitates her fashion styles, hairstyles, accessories, make-up, and plastic surgery. He is called as "Metrosexual" or "Crossexual". Nowadays, men as well as women can satisfy the wants for beauty. The beautiful appearance of a man has a good impact on the social relationships. The feminizing trends are generally accepted and are shown in the silhouettes, details, colors, fabrics and accessories. The feminizing trends in men's knitwear are shown in the various items. They have slim silhouettes and feminine details. Also they are made of bulky yarns or fancy yarns, and various stitches for texture effects. The most outstanding changes in men's knitwear are the vivid colors and flower patterns.

A Development on the software of Train Control and Monitoring System(TCMS) for Subway Train (전동차용 종합제어장치 소프트웨어 개발)

  • Choi, Byoung-Wook;Park, Jong-Hun
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.25 no.12
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    • pp.94-100
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    • 2011
  • TCMS is the most important controller in the subway train for reliable train control and service oriented flexibility. TCMS software charges communications and control of train and maintains control devices so we use QNX for real-time control. This paper introduces overall software development of TCMS using various diagrams. Software implementation details in TC and CC are explained using deployment diagram through train configuration. Driving control process among many processes is focused to present implement details which controls train by driver or automatic train operation and handles commands to control deriving devices in cars. Reliable operation of train and easy maintenance process is achieved through the same hardware in train control computer and car control computer.

Scaling methods for wind tunnel modelling of building internal pressures induced through openings

  • Sharma, Rajnish N.;Mason, Simon;Driver, Philip
    • Wind and Structures
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    • v.13 no.4
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    • pp.363-374
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    • 2010
  • Appropriate scaling methods for wind tunnel modelling of building internal pressures induced through a dominant opening were investigated. In particular, model cavity volume distortion and geometric scaling of the opening details were studied. It was found that while model volume distortion may be used to scale down buildings for wind tunnel studies on internal pressure, the implementation of the added volume must be done with care so as not to create two cavity resonance systems. Incorrect scaling of opening details was also found to generate incorrect internal pressure characteristics. Furthermore, the effective air slug or jet was found to be longer when the opening was near a floor or sidewall as evidenced by somewhat lower Helmholtz frequencies. It is also shown that tangential flow excitation of Helmholtz resonance for off-centre openings in normal flow is also possible.

Bond and ductility: a theoretical study on the impact of construction details - part 2: structure-specific features

  • Zwicky, Daia
    • Advances in concrete construction
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    • v.1 no.2
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    • pp.137-149
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    • 2013
  • The first part of this two-part paper discussed some basic considerations on bond strength and its effect on strain localization and plastic deformation capacity of cracked structural concrete, and analytically evaluated the impacts of the hardening behavior of reinforcing steel and concrete quality on the basis of the Tension Chord Model. This second part assesses the impacts of the most frequently encountered construction details of existing concrete structures which may not satisfy current design code requirements: bar ribbing, bar spacing, and concrete cover thickness. It further evaluates the impacts of the additional structure-specific features bar diameter and crack spacing. It concludes with some considerations on the application of the findings in practice and an outlook on future research needs.

A study on the physical description area of cataloging rules on microcomputer software (마이크로컴퓨터 소프트웨어에 관한 목록규칙의 형태사항 연구)

  • 신용운
    • Journal of Korean Library and Information Science Society
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    • v.16
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    • pp.99-128
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    • 1989
  • The purpose of this study is to examine the problems of the each cataloging rules about the physical description area that generated the greatest controversy in the cataloging of microcomputer software, and to suggest solutions of these problems. The results of the study can be summarized as follows: 1. Because the physical description area of materials is to identify the physical attributes of the carrier, file description might better described in the material specific details area. 2. Integrated software that related file is linked together need to be used terms that represented any type of software 3. It is desirable that the term 'computer' is to be used as a modifier to devide the carrier of microcomputer and other non book materials. 4. System requirements would better described in a note area rather than physical, description area. 5. It is desirable that other physical details such as recording density, tracks, etc., is to describe in the physical description area, since such information is to represent specifics of the carrier.

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Air blast load generation for simulating structural response

  • Guzas, Emily L.;Earls, Christopher J.
    • Steel and Composite Structures
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    • v.10 no.5
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    • pp.429-455
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    • 2010
  • The current research presents a detailed methodology for generating air blast loading for use within a finite element context. Parameters describing blast overpressure loading on a structure are drawn from open literature sources and incorporated within a blast load generation computer code developed for this research. This open literature approach lends transparency to the details of the blast load modeling, as compared with many commonly used approaches to blast load generation, for which the details are not publicly available. As a demonstration, the load generation code is used with the finite element software LS-DYNA to simulate the response of a steel plate and girder subjected to explosions modeled using these parameters as well as blast parameters from other sources.