• Title/Summary/Keyword: Korea-View

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Implementation for Modbus/RTU Protocol Using LabVIEW (LabVIEW를 이용한 Modbus/RTU 프로토콜 구현)

  • Jeong, Tae-il;Lee, Tae-oh;Kim, Gwan-hyung;Kim, Hyun-soo;Lee, Hyung-ki
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2015.10a
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    • pp.1054-1057
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    • 2015
  • Real time processing is important in the industrial field. In this paper, we implement for Modbus/RTU(Remote Terminal Unit) protocol using LabVIEW based on serial communication. In other to obtain the experimental data from torque sense and voltage/current meter, Modbus/RTU protocol is implemented by LabVIEW tool. Mechanical loss can be calculated by torque, RPM, voltage, and current. Source code consist of panel and block diagram. We confirmed these source code can be applied in industrial field.

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Post-processing of 3D Video Extension of H.264/AVC for a Quality Enhancement of Synthesized View Sequences

  • Bang, Gun;Hur, Namho;Lee, Seong-Whan
    • ETRI Journal
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    • v.36 no.2
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    • pp.242-252
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    • 2014
  • Since July of 2012, the 3D video extension of H.264/AVC has been under development to support the multi-view video plus depth format. In 3D video applications such as multi-view and free-view point applications, synthesized views are generated using coded texture video and coded depth video. Such synthesized views can be distorted by quantization noise and inaccuracy of 3D wrapping positions, thus it is important to improve their quality where possible. To achieve this, the relationship among the depth video, texture video, and synthesized view is investigated herein. Based on this investigation, an edge noise suppression filtering process to preserve the edges of the depth video and a method based on a total variation approach to maximum a posteriori probability estimates for reducing the quantization noise of the coded texture video. The experiment results show that the proposed methods improve the peak signal-to-noise ratio and visual quality of a synthesized view compared to a synthesized view without post processing methods.

A Study on Developing Korean Virtual Model for Internet Apparel Shopping -Men and Women's Body Proportion of 20's- (인터넷 의류 판매원 한국인 가상모델 개발을 위한 연구 -20대 남녀 인체 프로모션을 중심으로-)

  • Cheon, Jong-Suk;Choe, Hyeon-Yeong
    • Journal of the Ergonomics Society of Korea
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    • v.22 no.1
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    • pp.17-29
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    • 2003
  • This study was initiated to develop a methodology for devising Korean virtual models for apparel shopping at internet shopping site. The data base for this study was the Korean National Anthropometric Survey in 1997. The subjects were 493 women and 626 men in 20's. The researchers also measured 88 males and females in age 20's to suggest back and front depth proportions which are not available from the survey. The virtual models' figure types were classified by the heights, drop value and bust(chest) girth. It was evaluated whether it is needed to separate figure type with bust(chest) girth. The body sizes of virtual models were suggested for side view model and front view model in 13cm height. Four female virtual models were suggested for front view and side view. Eight male virtual models were suggested for front view and side view. Each virtual model's height, breadth and depth proportions were calculated. Shoulder breadth. Bust(chest) breadth, waist breadth, hip breadth and proportions were calculated for front view model. The bust(chest) depth, waist depth, abdomen depth, hip depth and proportions were calculated for side view model. Height proportions were suggested for female and male virtual models.

View Index Technique using Signatures in Relational Databases (관계 데이타베이스에서 시그니쳐를 이용한 뷰인덱스 기법)

  • Yong, Hwan-Seung
    • The Transactions of the Korea Information Processing Society
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    • v.3 no.4
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    • pp.757-765
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    • 1996
  • View index techniques are proposed to process queries on views. Signature referencing techniques keep pointers with signatures of the referred object when there is any reference relationship between objects. When queries having conditions on referred object are give, disk I/Os can be reduced by checking conditions using stored signatures. Signature view index techniques proposed in this paper apply signature referencing techniques to view index by keeping not only tuple identifiers but also signatures for the tuple. When queries having conditions on views regiven, we can retrieve only tuples from a view index which satisfy given conditions by checking those with stored signatures.

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An Integrated View of Web Site Evaluation Method (통합적인 관점에서의 웹사이트 평가 방법)

  • 곽기영
    • Journal of Korea Society of Industrial Information Systems
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    • v.7 no.4
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    • pp.74-82
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    • 2002
  • Although there have been many Web site evaluation models with an explosive growth of Internet, they seem to be not fully considering various aspects of Web sites resulting from their changing roles. This paper proposes a method for evaluating Internet Web sites based on an integrated view. The method consists of 4 views including user-judgement view, user-performance view, expert-judgement view, and expert-performance view. Working procedures of the method along with tools and techniques and its implications are presented.

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Hologram Generation of 3D Objects Using Multiple Orthographic View Images

  • Kim, Min-Su;Baasantseren, Ganbat;Kim, Nam;Park, Jae-Hyeung
    • Journal of the Optical Society of Korea
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    • v.12 no.4
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    • pp.269-274
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    • 2008
  • We propose a new synthesis method for the hologram of 3D objects using incoherent multiple orthographic view images. The 3D objects are captured and their multiple orthographic view images are generated from the captured image. Each orthographic view image is numerically overridden by the plane wave propagating in the direction of the corresponding view angle and integrated to form a point in the hologram plane. By repeating this process for all orthographic view images, we can generate the Fourier hologram of the 3D objects.

Design and Implementation of Pay-Per-View in RTP/RTSP Streaming Server and Client (RTP/RTSP 스트리밍 서버와 클라이언트에서의 Pay-Per-View 설계 및 구현)

  • Kwon, Sun-Nam;Joo, Han-Kyu
    • Proceedings of the Korea Information Processing Society Conference
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    • 2003.05c
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    • pp.2229-2232
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    • 2003
  • 인터넷이 활성화되면서 다양한 서비스가 제공되어지고 있다. 그 가운데 하나가 MOD(Multimedia on Demand) 서비스이다. MOD는 다양한 프로그램을 사용자가 원하는 시점에 볼 수 있도록 한다. MOD 서비스를 유료화 할 경우 시청한 양만큼 요금을 지불하는 pay-per-view 방법을 생각할 수 있다. 본 논문에서는 RTP(Realtime Tansport Protocol)/RTSP(Real Time Streaming Protocol)를 이용한 스트리밍 서버와 클라이언트를 구현하고 여기에 PPV(Pay-Per-View)를 적용해 본다.

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A Formal Specification and Accuracy Checking of 2+1 View Integrated Metamodel Using Z and Object-Z (Z/Object-Z 사용한 2+1 View 통합 메타모델의 정형 명세와 명확성 검사)

  • Song, Chee-Yang
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.15 no.1
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    • pp.449-459
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    • 2014
  • The proposed 2+1 view integrated metamodel defined formerly with a graphical class model can not be guaranteed the syntactic clarity and accuracy precisely for the metamodel due to the informal specification. This paper specifies the syntactic semantics formally for the 2+1 view integrated metamodel using Z and Object-Z and checks the accuracy of the metamodel with Z/Eves tool. The formal specification is expressed in Z and Object-Z schema separately for syntax and statics semantics of the 2+1 view integrated metamodel, which applying the converting rule between class model and Z/Object-Z. The accuracy of the Z specification for the metamodel is verified using Z/Eves tool, which can check the syntax, type, and domain of the Z specification. The transformation specification and checking of the 2+1 view integrated metamodel can help establish more accurate the syntactic semantics of its construct and check the accuracy of the metamodel.

Model-based Inter-view Mismatch Compensation Algorithm for Multi-view Video Coding (다시점 영상 부호화를 위한 모형 기반 시점간 비정합 보상 알고리즘)

  • Jeon, Yeong-Il;Lee, Si-Woong
    • The Journal of the Korea Contents Association
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    • v.8 no.7
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    • pp.1-8
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    • 2008
  • In this paper, an algorithm to compensate the inter-view mismatch in the multi-view video according to the different characteristics of cameras is presented. Interview mismatches make it difficult to merge the multi-view images and decrease the coding performance. So, a preprocessing operation to compensate the mismatches is requisite in the multi-view video coding. It is shown that the mismatch in the outputs of multi-view cameras with different electro-optical transfer functions can be approximated with a linear model of a gain and an offset. In addition, a new algorithm for estimating and compensating the inter-view mismatch based on the detection of the overlapped region is presented. Experimental results using various rectified stereo images show that the proposed method compensates inter-view mismatches more accurately compared to the conventional approach.

A PIM/PSM Component Modeling Technique Based on 2+1 View Integrated Metamodel (2+1 View 통합 메타모델 기반 PIM/PSM 컴포넌트 모델링 기법)

  • Song, Chee-Yang;Cho, Eun-Sook
    • The KIPS Transactions:PartD
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    • v.16D no.3
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    • pp.381-394
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    • 2009
  • As a technique to enhance reusability for the created artifacts in software modeling process, the model driven method such like MDA has been applied. Unfortunately, the hierarchical and systematic MDA based development technique using UML is poor yet. This causes the problem that the MDA modeling with high consistency and reusability based on MDA metamodel is not being realized. To solve this problem, this paper proposes a MDA (PIM/PSM) component modeling technique using 2+1 view integrated metamodel. At first, the meta-architecture view model which can represents development process view and MVC view is defined. Then, the hierarchical integrated metamodels per view are addressed separately for modeling process and MVC at metamodel level on the hierarchy of the defined meta-architecture view model. These metamodels are defined hierarchically by layering the modeling elements in PIM and PSM pattern for UML models and GUI models. Appling the proposed metamodel to an ISMS application system, it is shown as a component modeling case study based on MDA. Through this approach, we are able to perform a component model with consistency and hierarchy corresponding to development process and MVC way. Accordingly, this may improve more independence and reusability of model.