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유주희(Ju-hee Yoo),이경미(Kyoung-mi Lee) 한국정보과학회 2015 정보과학회논문지 Vol.42 No.1
최근 특허영상의 중요도가 높아지면서 특허영상 검색에 대한 연구의 필요성이 커지고 있다. 그러나 지금까지 대부분의 특허검색은 이진 영상에서 에지 특징을 추출하는 방법을 주로 사용하고 있어서 영상 전처리 과정에서 에지 검출 결과에 따라 검색 성능이 영향을 받는 단점이 있다. 이러한 문제점을 해결하기 위해, 본 논문에서는 영상의 형태적 특징을 표현하는 SURF를 사용하여 특허영상의 특징을 표현하고 검색하는 방법을 제안한다. 제안하는 방법은 영상에서 SURF를 계산하여 관심점과 방향을 추출하고 영역별 히스토그램을 구한다. 제안하는 방법의 우수성을 평가하기 위해서 제안하는 방법을 2000 이진 특허영상 데이터베이스에 적용하였고, 에지 정보가 일부 손실되더라도 검색 결과가 매우 뛰어남을 보여주었다. Recently, patent images are growing importance and thus patent image retrieval is a growing area of research. However, most existing patent image retrieval systems use edges extracted in the images, whose performance is affected by the quality of edge detection in the image pre-processing step. To overcome this disadvantage, we propose a SURF-based patent image retrieval method which uses the morphological characteristics of the images. The proposed method detects SURF interest points with directions and computes regional histograms. We apply the proposed method to a patent image database with 2000 binary images and we show the proposed retrieval system achieves excellent results, even when the images have some loss or degradation.
유주희(Ju Hee Yoo),이경미(Kyoung Mi Lee) 한국컴퓨터게임학회 2013 한국컴퓨터게임학회논문지 Vol.26 No.4
This paper proposes an educational smartphone applicaiton which usages augmented reality and GPS on a smartphone to lead a learner's experience, and which provides games on cultural properties to keep the learner's interests. The proposed educational app is based on Keller's ARCS model system. To acquire knowledge through experience by using a GPS on a smartphone, the learner solves problems on cultural properties located in which the learner stays and thus the learner can keep her/his interest and increase her attention. Also, using augmented reality gives encouragement and rewards to the learner, increases her confidence and satisfaction, and helps her/him continue learning.
HRNet 기반의 Cross-Attention을 활용한 얼굴 랜드마크 검출 및 감정 인식
유주희(Ju Hee Yoo),장수빈(Su Bin Jang),김유라(Yu Ra Kim),최성은(Sung Eun Choi),서재규(Jae Kyu Suhr) 대한전자공학회 2023 대한전자공학회 학술대회 Vol.2023 No.11
A persons facial expression is one of the most crucial signals for judging emotions and plays a vital role in communication between people. Thus, this paper proposes a method that simultaneously conducts facial expression recognition and facial landmark detection using a single backbone based on HRNet. Additionally, cross-attention is used to efficiently fuse information about facial expressions and landmarks. Experimental results show that the proposed method successfully recognizes expressions in 88.59% of facial images in RAF-DB.
삼교지귀(三敎指歸)를 통해본 홍법대사 공해(空海)의 출가(出家)
유주희 ( Ju Hee Yoo ) 한국일어일문학회 2012 日語日文學硏究 Vol.83 No.2
Kobo Daishi Kukai (774-835) who settled Shingon Esoteric Buddhism in Japan is widely known Buddhist monk. He wrote many books with his remarkable talent in writing. Most of all, "Sangoshiki" that contains the comparison of Confucianism, Taoism and Buddhism and the determination of being Buddhist monk is worthy of notice. In this paper, opportunity to lead Kukai into becoming Buddhist monk is studied through "Sangoshiki". As a result of study, the following two results could be obtained. Firstly, he met one Buddhist monk and inherited "Gumonzihou" from him. These factors impact greatly on Kukai to become Buddhist monk. "Gumonzihou" was one of the Buddhist asceticism in vogue at that time. Kukai believed Buddhism as genuine truth through this asceticism and decided to be Buddhist monk. Secondly, another big factor impacting on Kukai to become Buddhist monk is his brother`s death. Kukai was absorbed in Buddhist impermanence and seek being Buddhist monk by his brother`s death. This was discovered through linguistic analysis of "Sangoshiki" preface and last volume of impermanence. Therefore, it can be known that "Sangoshiki" describe the process of being Buddhist monk in his own language. The contention of this paper is to reevaluate "Sango shiki" as the declaration of being Buddhist monk.