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반 깜박임 선택을 이용한 응시 상호작용과 착용형 AR 시스템
박형민(Hyung-Min Park),이재영(Jae-Young Lee),이석한(Seok-Han Lee),최종수(Jong-Soo Choi) 大韓電子工學會 2009 電子工學會論文誌-SP (Signal processing) Vol.46 No.5
본 논문에서는 반 깜박임 선택 기법을 이용한 응시 상호작용(Gaze interaction) 방법과 이를 이용한 착용형 증강현실 시스템(Wearable Augmented Reality system)이 제안 된다. 응시 상호작용은 가장 쉽고 자연스러우며 빠른 방법이며, 광투과 HMD기반의 착용형 AR 시스템에 매우 적합한 기법이다. 이 시스템은 사용자의 응시 좌표와 반 깜박임(Half blink)을 인식하여 사용자가 바라보고 있는 객체의 정보를 HMD에 출력한다. 이를 통해 마이더스 터치 문제(Midas touch problem)를 해결하여 사용자의 의도를 정확히 전달할 수 있게 된다. 제안된 상호작용법을 AR 주석(Annotation) 시스템에 적용, 구현하여 사용성을 평가하였고, 실험 결과를 통해 제안한 기법의 유용성을 검증하였다. In this paper, we propose a wearable augmented reality system using gaze interaction. Gaze interaction has been considered to be the potential of easy, natural and fast way of interaction and becomes a suitable way in optical see-through HMD based wearable AR. Our system recognizes user's gaze point, half blink motion and displays the information of object seen by user to HMD. Half blink selection technique avoids the Midas touch problem and represents user's intention correctly. We've developed a AR annotation system and estimated the usability of gaze interaction. The accuracy and robustness of our technique is verified on the experimental results.
온라인 쇼핑몰에서 고객만족에 영향을 미치는 고객가치 요인에 대한 실증적 연구
박형민(Hyung-Min Park),염창선(Chang-Sun Yum) 한국정보기술학회 2012 한국정보기술학회논문지 Vol.10 No.3
As competition increases among online shopping, online shopping mall operator is showing a lot of attention to customer value for the success of the business. This paper is to find out and analyse the customer value factors of customer satisfaction as the critical success factors of online shopping mall. The research model with the customer value factors influencing customer satisfaction is suggested. The results of this research are summarized as follows: First, economy value and personalization value of utilitarian value dimension, community value and self esteem value of social value dimension have significantly positive influence on customer satisfaction. Second, customer satisfaction has significantly positive influence on word of mouth intension. These research findings suggest the clue for making online shopping mall successful.
Cacium scoring과 허혈성 심장질환 유병률과의 관계
박형민(Hyung Min Park),이현성(Hyun sung Lee),김성옥(Sung Ok Kim),성봉욱(Bong wook Sung),서재영(Jae Young Suh),이종호(Jong Ho Lee),최남길(Nam Gil Choi) 대한CT영상기술학회 2007 대한CT영상기술학회지 Vol.9 No.1
Purpose Purpose of this study is to know relative relation between Calcium scoring and prevalence rate of Ischemic heart disease, therefore it was divide the dangerous degree, using calcified material Risk classified list in Calcium scoring test. Materials and Methods Chest CT( Cardiac a) underwent from November, 2006 January, 2007. T-score at Calcium scoring examination did 214 (36.58 %) who Test more than 0.1 by target except young child patient, Calcium scoring is a patient who was 0 that have been ever enforced heart and Percutaneous Coronary Intervention(PCI) among 585 patient that is prescribed Chest CT(Cardiac A). Target patient man 115 people (53.7 %), average age 63.2 and woman 99 people(46.3 %), average age 65.8. T-score value that score is gotten by Calcium scoring scan classify, (1)group when it is below 100, 100 to 400 (2)group, and 400 to 1000 (3)group, and more than 1000 to (4)group. And analyzed by back to front about relation of Calcium scoring and ischemic heart disease divides and examined by each LM, LAD, LCX, RCA and compares interpretation sequence with each Coronary arteries T-score value after post enhancement CT scan and find Coronary artery stenosis or Perfusion Defect. Results Calcium score appeared highest by 23,110.5 in LAD and ranged in RCA (18, 996.4), LCX (7, 360.6), LM (3, 412.3) order. Also, when was expose in LAD as Stenosis position distribution chart calcium score’s result, RCA, LCX, LM order and it is 36.6% when is (4)group perfusion defect probability (4)group, and it is 26.3% when is (3)group, it is when is 10% (2)group, it is when is 5.2% (1)group. Conclusion When the Calcium score and ischemic heart disease that analyze data on the basis of diagnostic results, it could know that possibility is high to cause ischemic heart disease, if calcium score was high. Considering these results, position of abnormality or other details information was not agree correctly, It is Calcium scoring scan not only screening test, but also meaning of independent test.
박형민 ( Hyung Min Park ) 대한범죄학회 2012 한국범죄학 Vol.6 No.2
Serial murder falls into one of three categories, ``hedonistic motive type``, ``gaining type``, ``angeres type``. ``hedonistic motive type serial murder`` can be categorized into ``thrill-pursuing type``, ``lust-pursuing type``, ``power-pursuing type``, and ``gaining type serial murder`` into ``burglary-murder type`` and ``crime suppression type``. The serial murders in ``anger type`` can be designated as the repeated ordinary homicide. Serial murderers have a definite motive or specific desire. They select weak victims(elders, women, children, etc.) and suitable time and space for satisfying their desire. Serial murderers take victims as instruments for satisfying their desire. Crimes have developed with time. Type attribute of serial murder is as fallows: ``hedonistic motive type serial murderers`` get an inferiority complex because they had failed to make emotional attachment to other; ``gaining type serial murderers`` have no support system that relieve them.