• Title/Summary/Keyword: Science TV

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A hand gesture recognition method for an intelligent smart home TV remote control system (스마트 홈에서의 TV 제어 시스템을 위한 손 제스처 인식 방법)

  • Kim, Dae-Hwan;Cho, Sang-Ho;Cheon, Young-Jae;Kim, Dai-Jin
    • Proceedings of the Korean Information Science Society Conference
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    • 2007.10c
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    • pp.516-520
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    • 2007
  • This paper presents a intuitive, simple and easy smart home TV remote control system using the hand gesture recognition. Hand candidate regions are detected by cascading policy of the part of human anatomy on the disparity map image, Exact hand region is extracted by the graph-cuts algorithm using the skin color information. Hand postures are represented by shape features which are extracted by a simple shape extraction method. We use the forward spotting accumulative HMMs for a smart home TV remote control system. Experimental results show that the proposed system has a good recognition rate of 97.33 % for TV remote control in real-time.

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Implementation of Encoder and Decoder for TV-Anytime Metadata (TV-Anytime 메타데이터의 부호화기 및 복호화기의 구현)

  • Kim Myounghoon;Kim Hyeokman;Yang Seungjun;Kim JaeGon
    • Journal of Broadcast Engineering
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    • v.10 no.1 s.26
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    • pp.57-67
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    • 2005
  • In the paper, we propose a TV-anytime codec that encodes and decodes TV-Anytime metadata according to the TV-Anytime specification so that the resulting binary TV-Anytime metadata can be transferred efficiently through the broadcasting network where the data bandwidth is restricted.. We describe the broadcasting environment that the TV-Anytime codec will be applied to, and the required functionalities of the software modules in detail. For the design of software modules, we show how to Implement the modules for metadata fragmentation. encoding, decoding, and the fragments management. The proposed TV-Anytime codec can be utilized as the core components to a personalized digital broadcasting system providing ECG(Electronic Content Guide) and segmentation information services according to TV-Anytime standard.

Role of α-Actinin 2 in Cytoadherence and Cytotoxicity of Trichomonas vaginalis

  • Lee, Hye-Yeon;Kim, Juri;Park, Soon-Jung
    • Journal of Microbiology and Biotechnology
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    • v.27 no.10
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    • pp.1844-1854
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    • 2017
  • Trichomonas vaginalis is a pathogen that triggers severe immune responses in hosts. T. vaginalis ${\alpha}$-actinin 2 ($Tv{\alpha}$-actinin 2) has been used to diagnose trichomoniasis. $Tv{\alpha}$-actinin 2 was dissected into three parts; the N-terminal, central, and C-terminal portions of the protein (#1, #2, and #3, respectively). Western blot of these $Tv{\alpha}$-actinin 2 proteins with pooled patients' sera indicated that #2 and #3, but not #1, reacted with those sera. Immunofluorescence assays of two different forms of T. vaginalis (trophozoites and amoeboid forms), using anti-$Tv{\alpha}$- actinin 2 antibodies, showed localization of $Tv{\alpha}$-actinin 2 close to the plasma membranes of the amoeboid form. Fractionation experiments indicated the presence of $Tv{\alpha}$-actinin 2 in cytoplasmic, membrane, and secreted proteins of T. vaginalis. Binding of fluorescence-labeled Trichomonas to vaginal epithelial cells and prostate cells was decreased in the antibody blocking experiment using anti-$Tv{\alpha}$-actinin 2 antibodies. Pretreatment of T. vaginalis with anti-$rTv{\alpha}$-actinin 2 antibodies also resulted in reduction in its cytotoxicity. Flow cytometry, ligand-binding immunoblotting assay, and observation by fluorescence microscopy were used to detect the binding of recombinant $Tv{\alpha}$-actinin 2 to human epithelial cell lines. Specifically, the truncated N-terminal portion of $Tv{\alpha}$-actinin 2, $Tv{\alpha}$-actinin 2 #1, was shown to bind directly to vaginal epithelial cells. These data suggest that ${\alpha}$-actinin 2 is one of the virulence factors responsible for the pathogenesis of T. vaginalis by serving as an adhesin to the host cells.

A Study on Development of Application using Smart TV (스마트 TV를 이용한 어플리케이션 개발에 관한 연구)

  • Song, Eun-Jee
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2012.10a
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    • pp.984-987
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    • 2012
  • A Smart TV is the multi TV which have not only function ability of general TV but also web service and application as like smartphone based on internet. In this paper, we suggest the web system for cooking recipes as smart TV application. This system have a game function by simulation and we can enjoy this cooking recipes application as a game.

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Application of Total Variation Algorithm in X-ray Phantom Image with Various Added Filter Thickness : GATE Simulation Study (다양한 두께의 부가 여과판을 적용한 X-선 영상에서의 Total Variation 알고리즘 적용 : GATE 시뮬레이션 연구)

  • Park, Taeil;Jang, Sujong;Lee, Youngjin
    • Journal of the Korean Society of Radiology
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    • v.13 no.5
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    • pp.773-778
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    • 2019
  • Images using X-rays are essential to diagnosis, but noise is inevitable in the image. To compensate for this, a total variation (TV) algorithm was presented to reduce the patient's exposure dose while increasing the quality of the images. The purpose of this study is to verify the effect on the image quality in radiographic imaging according to the thickness of the additional filtration plate through simulation, and to evaluate the usefulness of the TV algorithm. By using the Geant4 Application for Tomographic Emissions (GATE) simulation image, the actual size, shape and material of the Polymethylmethacrylate (PMMA) phantom were identical, the contrast to noise ratio (CNR) and coefficient of variation (COV) were compared. The results showed that the CNR value was the highest and the COV the lowest when applying the TV algorithm. In addition, we can acquire superior CNR and COV results with 0 mm Al in all algorithm cases.

A Study on an Evaluation Method for LCD TV Products Using Axiomatic Design based Hybrid AHP/DEA Model (공리적 설계 기반의 AHP/DEA 혼합모형을 이용한 LCD TV평가방법에 관한 연구)

  • Choi, Min-Soo;Kim, Woo-Je;Cho, Hyun-Ki;Park, Se-Jung
    • Korean Management Science Review
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    • v.29 no.1
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    • pp.33-56
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    • 2012
  • Domestic LCD TV market is composed of two groups of products produced by major firms and small and medium enterprises. The major companies make the price relatively high, but the other makes lower in the same sizes. The model of the low price products does not make consumers choice when they choose LCD TV. This makes the questions of capability between difference price products. The reason above mentioned, the firms that include group of comparatively lower price, are worried about not increasing sale because of prejudice. This study is to find any interrelationship and evaluate the efficiency between the products using performance, exterior and brand power of product. In order to do this, a hybrid AHP/DEA evaluation model for comparison/valuation of LCD TV products is developed. The proposed process is; first, to derive hierarchy structure of LCD TV evaluation criteria using axiomatic design, second, to calculate the score of each LCD TV product through AHP analysis including weight calculation of evaluation criteria, and last, to evaluate the efficiency of LCD TV product by applying DEA by defining product scores as output and prices as input. It concludes that the high price products shows good efficiency, but there are some products with good exterior and brand power, not performance, also presenting good efficiency.

Development and Application of Science Career Education Materials Using TV Programs in Junior High School (TV 프로그램을 활용한 중학교 과학 진로교육 자료 개발 및 적용)

  • Yoon, Hye-Gyoung;Kim, Hyoung-Seok;Jung, Hyung-Si;Kim, Joung-Youn;Kim, Myoung-Soon
    • Journal of The Korean Association For Science Education
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    • v.26 no.4
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    • pp.518-526
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    • 2006
  • Science career education is for every student as well as for students who want to become scientists. In this study, we developed and applied science career education materials using TV programs which showed successful application of science in industry and business. The effects of the programs were surveyed mainly by questionnaire on 'Science Career Orientation', which have four categories.Video materials using TV programs were effective in changing science career orientation (p<0.05) of junior high school students, but only when the teacher added some cognitive explanation on the scientific concept involved. Providing only video materials were not enough to make meaningful change on science career orientation. The results implied science career education should be linked with science teaching and learning. It also showed the possibility and the way of using informal education like TV program in science career education.