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JPEG2000에서 마스크 패턴을 이용한 빠른 관심영역 처리 기법
이점숙(Jum-Sook Lee),하석운(Seok-Woon Ha),박재흥(Jae-Heung Park),서영건(Yeong-Geon Seo),강기준(Ki-Jun Kang),홍석원(Seok-Won Hong),김상복(Sang-Bok Kim) 한국컴퓨터정보학회 2010 韓國컴퓨터情報學會論文誌 Vol.15 No.6
JPEG2000 이미지에서 사용자의 관심영역에 따라 동적으로 이미지의 일부를 우선적으로 처리하는 것이 관심 영역 처리기법이다. 작은 이미지는 큰 의미가 없지만, 큰 이미지에서는 화면에 출력되는 속도가 느리기 때문에 사용자가 먼저 보고자하는 영역을 지정함으로써 지정된 부분을 우선처리하게 된다. 사용자는 대략의 이미지 중에서 관심영역을 지정하면 지정된 영역의 범위를 마스킹 하여 이미지를 전송한 곳으로 보내게 된다. 관심영역 마스킹 정보를 얻은 서버는 우선적으로 마스킹 되어 있는 코드 블록을 우선적으로 전송한다. 여기서, 빠르게 마스킹 정보를 생성하는 것이 중요한데, 본 연구에서는 미리 만들어 놓은 48개의 마스킹 패턴을 사용하여, ROI(Region-of-Interest)와 배경의 분포에 따라 마스킹 패턴 중에 하나를 선택함으로써 마스킹 영역을 계산하는 시간을 현저히 줄였다. 이 패턴이 적용되는 블록은 한 블록 내에 ROI 영역과 배경 영역이 섞여 있는 블록이다. 한 블록 전체가 ROI 이거나 배경이면 이 패턴은 사용되지 않는다. 실험한 결과, ROI와 배경을 정확하게 분리하여 처리하는 방법에 비하여 약간의 품질은 떨어지지만, 처리시간은 현저히 줄었음을 보였다. An region of interest processing technique is to handle preferentially some part of an image dynamically according to region of interest of the users in JPEG2000 image. A small image is not important, but in a big image the specified region that the user indicated has to be handled preferentially because it takes long time to display the whole image. If the user indicates a region of the outline image, the browser masks the region and sends the mask information to the source that transmitted the image. The server which got the mask information preferentially sends the code blocks matching the masks. Here, quickly generating mask information is important, so, in this paper using predefined 48 mask patterns, selecting one of the patterns according to the distribution of ROI(Region-of-Interest) and background, we remarkably reduced the time computing the mask region. Blocks that the patterns are applied are the blocks mixed of ROI and background in a block. If a whole block is an ROI or a background, these patterns are not applied. As results, comparing to the method that precisely handles ROI and background, the quality is unsatisfactory but the processing time remarkably reduced.
( Hwa Sook Moon ),( Ja Seong Koo ),( Tae Kyoung Kang ),( Mi Eun Jung ),( Byeung Jum Kim ),( Jee Yeon Lee ) 대한산부인과학회 2018 대한산부인과학회 학술대회 Vol.104 No.-
Objective: To determine whether ultrasound-guided sclerotherapy with 95% ethanol is safe and effective treatment for ovarian endometriomas. Methods: We retrospectively reviewed the medical records of 115 women with 116 ovarian endometriomas(2.9-10.6 cm in diameter), who underwent ultrasound-guided sclerotherapy with 95% ethanol between February 2012 and July 2018. Results: The clinical characteristics are as follows: mean cyst volume aspirated (mL) 50.03 (SD 48.33; Range 2-352), mean volume of normal saline (ml) 46.92 (SD 31.37; Range 0-150) and alcohol irrigated 15.89 (mL) (SD 11.26; Range 0-55), mean volume of alcohol instilled 17.98 (mL) (SD 13.64; Range 0-125), Mean duration of procedure 34.60 (min) (SD 23.08; Range 10-135). Up to now, the conversion rate to laparoscopic cystectomy and recurrence rate after sclerotherapy were 8.70% (10 cases) and 1.74% (3 cases), respectively. Conclusion: The ultrasound-guided sclerotherapy with 95% ethanol is a safe and effective treatment for ovarian endometriomas. This conservative treatment could possibly achieve a symptomatic cure while preserving healthy ovarian tissue, thereby avoiding early menopause.
Seung-Ho Han,In-Sook Song,Jong-Koan Kim,Jum-Gi Park,Jang-Hwan Park,Myeong-Jae Lee,Shin-Moo Kim,Kang-Ju Kim KOREAN ACADAMY OF ORAL BIOLOGY 2010 International Journal of Oral Biology Vol.35 No.1
The aims of this study were to investigate the nosocomial infection route of methicillin-resistant Staphylococcus aureus (MRSA) and explore preventative methods for this pathogen that involve blocking its dispersion. We cultured MRSA from nasal cavity swabs collected between June and July 2008 that we obtained from eight dental healthcare providers, 32 nurses and the sputum specimens of two patients from our hospital. In addition, we used VITEK 2 equipment to measure drug sensitivity, and we further performed biochemical testing and pulse-field gel electrophoresis (PFGE) to isolate MRSA colonies. The incidence of these bacteria on the nasal swabs was 25.0% from dental clinic healthcare providers, 13.6% from the internal medicine ward nurses and 30.0% from intensive care unit nurses. Moreover, MRSA was detectable in sputum specimens of ward patients. The antimicrobial agents resistance and partial PFGE types of MRSA showed a similar pattern. We suggest from these analyses that nasal cavity infection by MRSA could occur by cross contamination between healthcare providers and patients which underscores the importance of stringent MRSA management practices.
JPEG2000에서 ROI 코딩 품질에 영향을 미치는 요소의 성능 평가
강기준(Ki Jun Kang),이점숙(Jum Sook Lee),김현주(Hyun Joo Kim) 한국컴퓨터정보학회 2006 韓國컴퓨터情報學會論文誌 Vol.11 No.4
정지 영상 압축 표준인 JPEG2000의 가장 큰 특징 중의 하나는 관심영역(ROI) 코딩이다. JPEG2000은 다양한 ROI 기법과 ROI 파리미터를 제공하는데, 이것을 특정 응용 프로그램에 적용하기 위해서는 적절한 값을 선택해야 한다. 본 논문에서는 JPEG2000 성능에 영향을 미치는 ROI 코딩 기법과 ROI 파라미터가 ROI 품질과 전체 영상 품질에 어떤 영향을 미치는지를 평가한다. 평가에 사용된 ROI 기법은 Maxshift 방법과 Implicit 방법이며, 평가된 파라미터는 타일 크기와 ROI 크기, 코드블록의 크기, DWT 분해 레벨의 수, ROI 중요도가 사용된다. 타일 크기가 크면 품질은 좋아지며, ROI가 크면 품질은 떨어지며, 코드블록은 Maxshit와 Implicit 모두에서 32X32가 최고의 품질을 보이며, ROI 중요도가 커지면 품질은 떨어지고, 분해 레벨의 수가 증가할수록 품질은 떨어진다. One of the most significant characteristics of JPEG2000, the emerging still image standards, is the ROI (Region of Interest) coding. JPEG2000 provides a number of ROI coding mechanisms and ROI parameters. To apply them to an application, it must select the applicable values. In this paper, we evaluate how the ROI coding mechanisms and the ROI parameters influencing JPEG2000 quality affect the ROI quality and the whole image quality. The ROI coding mechanisms are Maxshift and Implicit, and the parameters are tile size and ROI size, codeblock size, number of DWT decomposition levels and ROI importance. The bigger the tile size, the better the quality. The bigger the ROI size, the ROI importance and the number of DWT decomposition levels, the worse the quality. In code block 32X32 of Maxshift and Implicit, it has the best quality.
전방병원 건강증진사업이 장병 건강수준에 미치는 영향 평가
최경혜 ( Kyung-hye Choi ),강점숙 ( Jum-sook Kang ),정의숙 ( Eui-suk Jeong ),유명란 ( Mung-ran Yu ),권은아 ( Eun-a Kwon ),방승희 ( Seng-hee Bang ) 국군의무사령부 2012 대한군진의학학술지 Vol.43 No.1
Objectives: This Study was accomplished in order to measure the effect which provide by Health Promotion Center in Forward Hospital and in order to examine the organizational culture of a military unit where cohort belong affects in health promotion program progress and result accomplished. Methods: Provided program consisted of 5 fields; smoking cessation, nutrition, stress management, exercise and drinking control program. This program was provided after weekly intervention method control and limitation control. And also, basic health level of before program compared with health level of after program including. During program process, variation of fat, blood pressure and blood sugar were informed cohort and program provider. This Study has been conducted from April 2010 to October 2010. Cohort were consisted of 35 officers including noncommissioned officers who were selected from three Forward Hospitals each 12 officers who showed over 2 metabolic syndromes at each Forward Hospital during general health check in that year. Program operators checked any improved effect of cohort's fat, blood pressure through everyday exercise and diet of cohort. And program operator used these results for health education and consulting. Three hospitals, each hospital has two health program operators. But, six operators unified programs before delivery and collected effects of program which delivered weekly. Difference for response of this survey by occupations were assessed with t - test or ANCOVA. Results: The ratio of Officer's participation in Health Promotion Program give positive affection to soldiers regarding health promotion activity. In case of Officers, who involved in high risk of metabolic syndrome, showed improved results through participation ratio of exercise, no smoking. A military unit which operated health promotion program showed variation of positive results regarding no smoking practice, participation ratio of health program were better than a military unit compared with no operating health promotion program.
이성원 ( Lee Sung-won ),강점숙 ( Kang Jum-sook ),조순영 ( Joe Seun-young ) 국군간호사관학교 군건강정책연구소 2018 군진간호연구 Vol.36 No.1
Purpose: This study is to develop a questionnaire to measure personalities for Korea Armed Forces Nursing Academy (KAFNA) cadet and test the validity and reliability of the questionnaire. Methods: The first draft of the questionnaire was prepared after conduction of a literature review and focus group interviews with total 30 KAFNA cadets in their 1st, 2nd, 3rd and 4th year at KAFNA. Then, 8 experts with minimum 2-year experience in teaching cadets discipline at KAFNA validated the 90 items of the first draft. To test the validity and reliability of the final questionnaire, data were collected from 327 cadets. exploratory factor analysis and internal consistency test were performed. Result: The final questionnaire with 52 items consists of 14 domains (patriotism, morality, leadership, passion, communication ability, cooperation, responsibility, honor, creativity, courage, patience, devotion, consideration, and leading by example), which explained 66.92% of the total variances. Chronbach's alpha for the total items was .90. Conclusion: This questionnaire could be used in the development and the evaluation of personality educations to teach and produce the right people for the best nursing officers.