• Title/Summary/Keyword: Multiple View

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Interactive Multiview Contents Authoring System based on MPEG-4 (MPEG-4 기반 대화형 복수시점 영상콘텐츠 저작 시스템)

  • Lee, In-Jae;Ki, Myung-Seok;Kim, Wook-Joong;Kim, Kyu-Heon
    • Proceedings of the Korean Society of Broadcast Engineers Conference
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    • 2005.11a
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    • pp.209-212
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    • 2005
  • This paper introduces interactive multi-view contents authoring system based on MPEG-4. The MPEG-4 standard, which aims to provide an object based audiovisual coding tool, has been developed to address the emerging needs from communications, interactive broadcasting as well as from mixed service models resulting from technological convergence. Due to the feature of object based coding, it has been considered that MPEG-4 is the most suitable for interactive broadcasting content production. This feature is suitable for creation of the content which provides multiple views of object or scene in interactive manner. In this paper, we categorize the multi-view visual content into two types: panoramic multi-view content and object multi-view content. And design and implementation of the authoring system for interactive multi-view contents is presented. We believe that the proposed method can be effectively used for further deployment of MPEG-4 content to various interactive applications.

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Semi-supervised Multi-view Manifold Discriminant Intact Space Learning

  • Han, Lu;Wu, Fei;Jing, Xiao-Yuan
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.12 no.9
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    • pp.4317-4335
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    • 2018
  • Semi-supervised multi-view latent space learning is gaining considerable popularity recently in many machine learning applications due to the high cost and difficulty to obtain the large amount of label information of data. Although some semi-supervised multi-view latent space learning methods have been presented, there is still much space for improvement: 1) How to learn latent discriminant intact feature representations by employing data of multiple views; 2) How to exploit the manifold structure of both labeled and unlabeled point in the learned latent intact space effectively. To address the above issues, we propose an approach called semi-supervised multi-view manifold discriminant intact space learning ($SM^2DIS$) for image classification in this paper. $SM^2DIS$ aims to seek a manifold discriminant intact space for data of different views by making use of both the discriminant information of labeled data and the manifold structure of both labeled and unlabeled data. Experimental results on MNIST, COIL-20, Multi-PIE, and Caltech-101 databases demonstrate the effectiveness and robustness of our proposed approach.

Husband's View of Homemangement on traditional living-culture as related to Conciousness and Practice for Housework (전통생활문화를 토대로한 남편의 가정경영관과 가사작업에 대한 의식과 수행)

  • 이길표
    • Journal of the Korean Home Economics Association
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    • v.29 no.4
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    • pp.81-97
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    • 1991
  • The purpose of this study is to investigate husband's view of homemanagement on traditional living-culture as related to consciousness and practice for housework. View of homemanagement is the main concept which continuse regardless of era changes of Korean homemanagement. It is appeared in the old book with the authority of educational contents for homemanagement written the criteria. The subjects of this study were 445 husbands living in Seoul. The questionaire was used as a methodological instrument. Data were analysed by SPSS computer programs. Such method as frequency, F-test, Duncan's Multiple Range test were used. The major result of the study can be summarised as follows: 1. The factors of husband's environmental variables(age, education, the number of children, wive's education, the age at marriage, house from) have significant effects on the husband's view of homemanagement. 2. Husband's consciousness for housework was different according to the wive's job and practice for housework was influenced by environmental variables(the age at marriage, the number of children, house form, wive's job). 3. The higer husband's view of homemanagement, the more practice for housework (housing, child and family care, homemanagement).

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Virtual portraits from rotating selfies

  • Yongsik Lee;Jinhyuk Jang;SeungjoonYang
    • ETRI Journal
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    • v.45 no.2
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    • pp.291-303
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    • 2023
  • Selfies are a popular form of photography. However, due to physical constraints, the compositions of selfies are limited. We present algorithms for creating virtual portraits with interesting compositions from a set of selfies. The selfies are taken at the same location while the user spins around. The scene is analyzed using multiple selfies to determine the locations of the camera, subject, and background. Then, a view from a virtual camera is synthesized. We present two use cases. After rearranging the distances between the camera, subject, and background, we render a virtual view from a camera with a longer focal length. Following that, changes in perspective and lens characteristics caused by new compositions and focal lengths are simulated. Second, a virtual panoramic view with a larger field of view is rendered, with the user's image placed in a preferred location. In our experiments, virtual portraits with a wide range of focal lengths were obtained using a device equipped with a lens that has only one focal length. The rendered portraits included compositions that would be photographed with actual lenses. Our proposed algorithms can provide new use cases in which selfie compositions are not limited by a camera's focal length or distance from the camera.

The Effect of View on Marriage, Children, Psychosocial Maturity, Social Pre-parental Role Recognition on Marriage Motivation in Colleger (대학생의 결혼관, 자녀관, 심리사회적 성숙도, 사회적 예비부모역할 인식이 결혼동기에 미치는 영향)

  • Park, Meera;Je, Nam Joo
    • The Journal of the Korea Contents Association
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    • v.19 no.1
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    • pp.316-328
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    • 2019
  • The purpose of this study is to identify the factors affecting marriage motivation in colleger and to provide basic data for the countermeasures for decrease in marriage rate. The subjects of this study were 175 colleger from K-do. Data were collected from October 1st to October 10th, 2018 and analyzed using IBM SPSS WIN/21.0 to get frequency, percentage, average, standard deviation, t-test, ANOVA, Pearson correlation coefficient, and Multiple regression. The subjects' view on marriage was 3.35 points, view on children was 3.11 points, psycosocial maturity was 2.99, social pre-parental role recognition was 3.46, and marriage motivation was 2.81. The marriage motivation of the subjects was positively correlated with view on marriage (r=.38, p<.001), view on children (r=.50, p<.001) and psychosocial maturity (r=0.25, p=.001), and psychosocial maturity was positively correlated with social pre-parental role. The most important factor that affects the subjects' marriage motivation is their view on children (${\beta}=.407$, p<.001), followed by view on marriage (${\beta}=.329$, p<001), Gender (${\beta}=-.184$, p=.004), psychosocial maturity (${\beta}=.159$, p=009), religion (${\beta}=.126$, p=.003). The explanatory power was 52.1% (F=26.01, p<001). Therefore, a program promoting the views on children and marriage to improve marriage motivation, a customized program considering gender and religio, and further research promoting marriage motivation is needed.

Emulator for Generating Heterogeneous Interference Signals in the Korean RFID/USN Frequency Band

  • Lee, Sangjoon;Yoon, Hyungoo;Baik, Kyung-Jin;Jang, Byung-Jun
    • Journal of electromagnetic engineering and science
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    • v.18 no.4
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    • pp.254-260
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    • 2018
  • In this study, we suggest an emulator for generating multiple heterogeneous interference signals in the Korean radio frequency identification/ubiquitous sensor network (RFID/USN) frequency band. The proposed emulator uses only one universal software radio peripheral to generate multiple heterogeneous interference signals more economically. Moreover, the physical and media access control parameters can be adjusted in real time using the LabVIEW program, thereby making it possible to create various time-varying interference environments easily. As an example showing the capability of the proposed emulator, multiple interference signals consisting of a frequency-hopping RFID signal and two LoRa signals with different spreading factors were generated. The generated signals were confirmed in both frequency and time domains. From the experimental results, we verified that our emulator could successfully generate multiple heterogeneous interference signals with different frequency and time domain characteristics.

A Research on the Application of MIMO/Beamforming Technologies for WiBro Evolution (WiBro Evolution 을 위한 MIMO/Beamforming 기술 적용 방안 연구)

  • Chung, Jae-Ho;Tcha, Yong-Ju;Roh, Jae-Hoon
    • 한국정보통신설비학회:학술대회논문집
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    • 2007.08a
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    • pp.46-49
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    • 2007
  • Multiple Antenna Technologies such as Multiple-Input Multiple-Output (MIMO) and Beamforming provide the increase of channel capacity and the reliability of wireless link. To obtain these advantages, WiBro, Mobile WiMAX and $4^{th}$ Generation System are employing multiple antenna technologies. There exist, however, many technical issues in considering the application of the technologies or the providing of services using them. In this paper, various technical topics are discussed and simple solutions are proposed. Beamforming has several technical issues which include coverage imbalance, difficulties in providing Multicast-Broadcast Service (MBS). In Addition, network planning is a critical point from a cell extension and initial network entry point of view. In case of MIMO, network deployment is discussed in that cellular data network such as WiBro has many repeaters. MIMO mode selection for maximizing the cell capacity is also covered.

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Adaptive Control of a Class of Nonlinear Systems Using Multiple Parameter Models

  • Lee Choon-Young
    • International Journal of Control, Automation, and Systems
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    • v.4 no.4
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    • pp.428-437
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    • 2006
  • Many physical systems are hybrid in the sense that they have continuous behaviors and discrete phenomena. In control system with multiple models, switching strategy and stability of the closed-loop system under switching are very important issues. In this paper, a novel adaptive control scheme based on multiple parameter models is proposed to cope with a change in Parameters. Switching strategy guarantees the non-increase in the global control Lyapunov function if the estimation of Lyapunov function value converges. Least-square estimation is used to find the estimated value of the Lyapunov function. Switching and adaptation law guarantees the stability of closed-loop system in the sense of Lyapunov. Simulation results on anti-lock brake system are shown to verify the effectiveness of the proposed controller in view of a large change in system parameters.

Risk Factors Associated with Suicidal Attempts in Korea: Exploring the Links with the Views on Suicide, Death, and Life (한국인의 자살시도의 위험 요인: 자살관(自殺觀)과 사생관(死生觀)을 중심으로)

  • Kim, Jun-Hong;Jung, Young-Il
    • Korean Journal of Health Education and Promotion
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    • v.28 no.2
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    • pp.109-123
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    • 2011
  • Objectives: The purpose of the present study was to explore the relationships between views on suicide, death, and life and lifetime suicidal attempts in the Korean context. Methods: Multiple logistic regression model was tested using data from Korean General Social Survey of 2009. We utilized the nationally representative survey data obtained via multistage stratified area probability sampling design from 1,599 respondents aged ${\geq}18$ years. Results: The proportion of lifetime suicidal attempts was 12.1% of entire sample in Korea. Some components of views on suicide and death influenced significantly on lifetime suicidal attempts after adjusting for demographic and health-related factors. The positive view on suicide(OR=0.76, 95% CI: 0.62-0.94), the naturalistic view on afterlife(OR=0.37, 95% CI: 0.67-0.99) and death concern(OR=0.67, 95% CI: 0.55-0.83) were risk factors of lifetime suicidal attempts. In contrast, the social responsibility view on suicide(OR=1.17, 95% CI: 1.00-1.37) and the transcendental view on afterlife(OR=1.25, 95% CI: 1.02-1.54) lowered the risk. Conclusions: Practical implications of the findings were discussed exploring policy evidences to screen high risk groups out and to reframe educational programs for suicide prevention. Strategic health messages need to be developed and transmitted for prevention of suicide.

Multi-view Video Codec for 3DTV (3DTV를 위한 다시점 동영상 부호화 기법)

  • Bae Jin-Woo;Song Hyok;Yoo Ji-Sang
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.31 no.3A
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    • pp.337-344
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    • 2006
  • In this paper, we propose a multi-view video codec for 3DTV system. The proposed algorithm is not only to reduce the temporal and spatial redundancy but also to reduce the redundancy among each view. With these results, we can improve the coding efficiency for multi-view video sequences. In order to reduce the redundancy of each view more efficiently, we define the assembled image(AI) that is generated by the global disparity compensation of each view. In addition, the proposed algorithm is based on MPEG-2 structure so that we can easily implement 3DTV system without changing the conventional 2D digital TV system. Experimental results show that the proposed algorithm performs very well. It also performs better than MPEG-2 simulcast coding method. The newly proposed codec also supports the view scalability, accurate temporal synchronization among multiple views and random access capability in view dimension.