• Title/Summary/Keyword: Global 깊이 영상

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Improvement of Disparity Map using Loopy Belief Propagation based on Color and Edge (Disparity 보정을 위한 컬러와 윤곽선 기반 루피 신뢰도 전파 기법)

  • Kim, Eun Kyeong;Cho, Hyunhak;Lee, Hansoo;Wibowo, Suryo Adhi;Kim, Sungshin
    • Journal of the Korean Institute of Intelligent Systems
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    • v.25 no.5
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    • pp.502-508
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    • 2015
  • Stereo images have an advantage of calculating depth(distance) values which can not analyze from 2-D images. However, depth information obtained by stereo images has due to following reasons: it can be obtained by computation process; mismatching occurs when stereo matching is processing in occlusion which has an effect on accuracy of calculating depth information. Also, if global method is used for stereo matching, it needs a lot of computation. Therefore, this paper proposes the method obtaining disparity map which can reduce computation time and has higher accuracy than established method. Edge extraction which is image segmentation based on feature is used for improving accuracy and reducing computation time. Color K-Means method which is image segmentation based on color estimates correlation of objects in an image. And it extracts region of interest for applying Loopy Belief Propagation(LBP). For this, disparity map can be compensated by considering correlation of objects in the image. And it can reduce computation time because of calculating region of interest not all pixels. As a result, disparity map has more accurate and the proposed method reduces computation time.

Development of Accident-prevention Smart Monitoring System for Woman Diver using Zigbee Module and GPS Sensor (Zigbee와 GPS를 이용한 해녀 사고예방 스마트 모니터링 시스템 개발)

  • Choi, Min Ho;Kim, Young Sang
    • Smart Media Journal
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    • v.5 no.3
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    • pp.74-80
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    • 2016
  • In this paper, we propose an accident-prevention smart monitoring system for Haenyeo(Woman diver) using Zigbee module and GPS sensor. This system can collect such information as the diving location, the body temperature, the depth of diving, and the diving time of a Woman diver working under the water and then respond immediately to an accident occurring. The research developed a smart Teawak and smart swimming goggles which can measure the state of a Woman diver and her diving activities. Smart Teawak, the buoy tool while a Woman diver is collecting seafoods under water, is able to receive GPS and transmit the data from smart swimming goggles and Zigbee Module to IHSS(IoT based Haenyeo Safety service Software) server. In addition, IHSS, a responsive web, provides the diving location and the state of a Woman diver on the smart phone. As a result, the system will be useful in the aspects of Woman diver' health care and the safety, furthermore, which will significantly contribute to global marketing of Woman diver with its being designated as a UNESCO intangible cultural asset.

Effects of Corporate Entrepreneurship Awareness on Organizational Effectiveness in Public Organizations: Focusing on Domestic Public Sector Practices (공공조직의 사내기업가정신 인식이 조직유효성에 미치는 영향: 국내 공공기관 사례를 중심으로)

  • Park, Young Sang;Lee, Woo Jin
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.11 no.6
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    • pp.83-98
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    • 2016
  • This study investigated the effects of corporate entrepreneurship awareness on organizational effectiveness using a case study of a domestic public institution-something that had not been done before. The main purpose of this study was to examine the correlation between corporate entrepreneurship and the personal entrepreneurship of each organization member. Specifically, we studied the effects of four aspects of corporate entrepreneurship-innovation, risk sensitivity, goal orientation, and autonomy-on the effectiveness of the organization with regard to personal entrepreneurship, defined by creativity, job satisfaction, and organizational commitment, in a public institution. We examined the mediating role of the facets of private entrepreneurship-innovation, risk sensitivity, and goal orientation-on the effectiveness of organizations. In addition, we examined the correlation between the recognition of an organization and individual innovation, creativity, and entrepreneurship in domestic public institutions. We found that corporate entrepreneurship significantly influences organizational effectiveness. We also found that private entrepreneurship has partially influenced organizational effectiveness. This result indicates that specifically personal entrepreneurship in a public organization with a corporate structure contributes in part to organizational effectiveness. Therefore, the efforts made for disruptive innovation and the innovative strategies of corporates with personal entrepreneurship should be kept up for the long haul in order to influence the achievements of organizations in the public sector significantly. The need of the hour is for public institutions to disseminate and extend entrepreneurship at the national level. Furthermore, studies on corporate entrepreneurship in different fields in organizations in the public domain are needed.

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