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배경 분리 알고리즘 기반 이동 객체 탐지 성능 평가 기법 연구
호씬 엠디 알람깃,호씬 엠디 임티아즈,호씬 엠디 딜로와르,이가원,허의남 한국정보과학회 2020 정보과학회 컴퓨팅의 실제 논문지 Vol.26 No.10
The background subtraction technique finds moving objects and reconstructs the background from video sequences. The background subtraction has extensive real-world applications. Most of the background subtraction studies have focused on increasing the accuracy while reducing the complexity. Though few studies have appraised the accuracy of the background subtraction methods, the researchers have not measured the computational complexity of the methods. Thus, in this study, our main goal was to measure the accuracy and computational complexity of the background subtraction approaches. This study can be used in industry and academy. Also, we implemented and assessed the performance of the three different types of background subtraction algorithms such as the cluster-based method, the statistical-based method, and the sample consensusbased method. We mainly used the F-measure with other confusion metrics, which are the most accepted criteria to assess the segmentation accuracy of the background subtraction algorithms. Also, we evaluated the complexity in terms of the memory usage per pixel and the number of frame display per second for the CDD-2012, CDD-2014, and Carnegie Mellon datasets. The experimental data are presented in the table in Section 4 to show the accuracy and computational complexity. 배경 분리 알고리즘은 비디오 시퀀스에서 배경을 재구성하여 움직이는 객체를 찾아내기 위한 기술로, 광범위한 응용 분야에 활용되고 있다. 배경 분리 알고리즘의 연구는 주로 복잡도를 줄이면서 정확성을 높이는 데 중점을 두고 있으나, 복잡도를 측정하거나 정확도를 평가하는 방법에 대한 연구는 상대적으로 미비한 상태이다. 따라서, 본 연구에서는 산업 및 학술적으로 모두 사용 가능한 배경 분리 알고리즘의 정확도와 계산 복잡도 평가 방안을 제시하고자 한다. 본 논문에서는 클러스터 기반 기법, 통계 기반 기법, 표본 합의 기반 기법의 세가지 종류와 배경 분리 알고리즘을 구현하고 평가한다. 특히 배경 분리 알고리즘의 분할 정확도를 평가하는데 가장 적합한 방법인 F-measure를 다른 혼합 지표와 함께 사용하였으며, CDD-2012, CDD-2014, 카네기멜론의 데이터시트를 픽셀당 메모리 사용량, 초당 프레임 수로 복잡도를 평가하여 정확도와 계산 복잡도를 나타낸 실험 결과를 본문(섹션 4)에 제시하였다.
호기,이근석 한국중국현대문학학회 2022 中國現代文學 Vol.- No.101
This essay talks about the history and the current situation of Korean-Chinese-Subtitle-Team, which has made an amount of subtitle works from Korean video contents, also known as K-dramas or K-entertainment programs or so. High-speed internet popularization could trace back to approximately 2000s, and the Korean-Chinese-Subtitle-Team also sprang up from then on in China. In addition, people used to watch videos by CDs(DVDs), but nowadays when it became to a visual measure like MP4s, people could get the video resources and edit them by an easier and quicker way. Due to the invention of the internet, Subtitle-Team which is mostly composed of fans of K-culture has developed and expanded rapidly without space constraints. As K-culture became more popular in China, the number of subtitle teams became larger and different teams started to reveal their own characters. Although Subtitle-Team is extremely important to the development of K-culture in China, we could allege that the Subtitle-Team is illegal when it comes to the copyright. However, the Chinese government has enforced the restriction on K-culture in the recent few years. Especially since 2017, when the government carried out a ban, which is called “Korean restriction order”, because of the THAAD dispute, the Subtitle-Team has remained stagnant, even though the most famous and competitive subtitle team is also going through a hard time. To conserve Korean-Chinese-Subtitle-Team, the way of their translation developed into “real-time translation” and they also started to run more and more business for profit.
Retirement Age Expectations of Women in Their 50s: The Role of Early Adulthood Work Experiences
호정화 한국사회학회 2016 韓國社會學 Vol.50 No.3
With population aging and continuation of female labor force participation, there is increasing social concern regarding when middle-aged female workers expect to retire. Literature on gendered life course and retirement suggests that earlier work experiences are related to retirement expectations in later life. Relying on Korean Longitudinal Study on Ageing (2012), this paper examined how retirement age expectations of women in their 50s were related to work experiences in early adulthood (ages 20-45). Retirement age expectations were categorized as: expecting to retire at age 64 or earlier, expecting to retire at 65 or later, and expecting not to retire. Early adulthood work experiences were measured by number of work years, number of jobs, and experience of job exit due to family reasons. Results suggest that women in their 50s with longer work years and women with fewer jobs were more likely to expect to retire at 64 or earlier rather than not to retire. Also women with longer work years tended to expect retire at 65 years or later than not to retire. Links between retirement age expectations and earlier work experiences remained significant after controlling for proximate conditions in one’s 50s such as current employment status and financial status. These findings suggest importance of earlier life experiences in understanding later life retirement expectations.
호중생 전남대학교 호남학연구원 2011 감성연구 Vol.3 No.1
明淸時期,徽州家族勢力非常强大,控制着地方。女性作爲家族中的弱勢群體,그녀들的欲望和行爲在生育、日常生活、婚姻、上譜入祠等方面受到엄密地控制,承受着榮耀영치辱的人生价値評判;反映了家族在不斷擴張和普及的同時,禮敎也日益向基層社會渗透,儒家論常已經世俗化。