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시각 현상의 특성을 이용한 영상의 질 향상에 관한 연구
안영아(Young-Ah Ahn),김태윤(Tai-Yun Kim) 한국정보과학회 1995 한국정보과학회 학술발표논문집 Vol.22 No.2A
이미지 처리 시스템에서 사람이 좀 더 쉽게 대상을 판별하며 눈에 거슬리지 않는 좋은 이미지를 창출하는 것은 매우 중요한 일이다. 좋은 이미지를 판별하는 것은 매우 주관적일 뿐만 아니라 주어진 응용 분야에 강하게 의존한다. 영상은 인간의 시각을 통하여 인지되기 때문에 시각 현상을 전제하지 않는 영상의 향상은 근본적으로 기계에 촛점을 맞춘 것이라 할 수 없다. 그러나 시각 현상의 정보는 실제로 응용에 효과적으로 쓰이기 보다는 상호 별개의 현상들로 나열한 지식의 형태이기에 이론적인 체계가 부족하여 적용에 어려움이 있다. 본 연구에서는 인간의 시각 현상을 영상 향상에 이용하고자 하였으며 영상의 대비도에 변화를 주어 이미지를 향상시키는 방법 중의 하나인 히스토그램 평활화 기법에 두 가지 시각 현상 정보인 밝음 인지 특성과 마하 밴드 패턴 효과를 주어 처리하였다. 그 결과로 밝음 인지 특성은 좀 더 자연스러운 이미지를 특히 어두운 부분의 변화를 인지할 수 있었고 마하 밴드 패턴 특성은 눈의 피로가 적은 이미지를 생성할 수 있었다.
엔테카비어 1 mg을 투여 중인 항바이러스 내성 만성 B형간염 환자에서 제네릭 약제로의 교체 시 치료 효과
안영은 ( Young Eun Ahn ),서상준 ( Sang Jun Suh ),김태형 ( Tae Hyung Kim ),정영걸 ( Young Kul Jung ),임형준 ( Hyung Joon Yim ) 대한소화기학회 2021 대한소화기학회지 Vol.77 No.1
Background/Aims: Clinical equivalence of generic antiviral agents for chronic hepatitis B (CHB) has not been demonstrated, particularly in cases with previous antiviral resistance. Entecavir 1 mg is prescribed frequently as a mono- or combination therapy in antiviral-resistant CHB patients. This study evaluated the efficacy and safety of switching to generic entecavir 1 mg (Baracle<sup>®</sup>) in CHB patients taking brand-name entecavir 1 mg (Baraclude<sup>®</sup>) alone or in combination with other nucleotide analogs after the development of antiviral resistance. Methods: This study was a single-arm prospective study. The primary endpoint was undetectable HBV DNA (<20 IU/mL) at 12 months after switching treatment. The biochemical and serologic responses, virologic breakthrough, and antiviral resistance rates were also evaluated. Results: Forty CHB patients with undetectable HBV DNA through the brand-name entecavir 1 mg treatment as a mono- or combination therapy after developing antiviral resistance to nucleos(t)ide analogs were enrolled in this study. No significant difference in the HBV DNA non-detection rate was observed between the baseline and 12 months after switching therapy (p=0.324). Furthermore, non-inferiority of the generic entecavir 1 mg to the brand-name entecavir 1 mg with 10% margin in maintaining undetectable HBV DNA was demonstrated (95% CI -2.80 to 8.20%). Similarly, no difference in the biochemical response rate was observed after switching therapy. Serum hepatitis B e antigen loss was observed in 12.5%. No virologic breakthrough was reported. Conclusions: Generic entecavir 1 mg is a reasonable alternative to the brand-name entecavir 1 mg in antiviral-resistant CHB patients with viral suppression. (Korean J Gastroenterol 2021;77:22-29)
안영은 ( Young Yeun Ahn ) 한국외국어대학교 중국연구소 2013 中國硏究 Vol.58 No.-
There is a word that mirrors the mentality of Chinese people today: ``tan te(탄터)``. The shape of the word looks like a mind going up and down, which represents anxiety that many people feel. It is widely used in the form of a phrase: ``tan te bu an(탄터不安)``. The word, ``tan te(탄터)``that people have used for centuries, however, suddenly drew attention in China in 2010. ``tan te(탄터) syndrome`` comes from the Chinese collective anxiety. Rapid inflation, surge in house prices, and a natural disaster like the great earthquake in Si Chuan, have implications for individual anxiety to grow into a social phenomenon. <tan te(탄터)>, the music by Gong lin na describes such mentality of Chinese people through a symbol. This study aims to investigate ``tan te(탄터) syndrome`` in China along with several characteristics found in the distribution and reproduction of <tan te> that became signifier by using a variety of cultural codes, such as <tan te>``s general code, various storytelling based on trans media, and new ideological codes.
어문학(語文學) : 새로운 예술작품 기획에 대한 고찰 -지아장커(價樟柯) 영화 「동(東)」을 중심으로
안영은 ( Young Yeun Ahn ) 한국외국어대학교 중국연구소 2011 中國硏究 Vol.51 No.-
This text that takes the documentary movie 「Dong」 as the main objective is proceeded between the world that surround the main character, Liu xiao dong based on his picture 「Wen Chunag」 and the world that is presented based on the director`s(Jia zhang ke`s) eyes that observes this. For the former, they mainly focused on the painter`s thought on the object of the ``painting activity`` and for the latter, they focused on the world that is developed based on the director`s eyes on the place where the painter`s eye view can not reach. The reason why they focus on both the painter, the main character`s view and the director`s view is that 「Dong」 does not necessarily present the view of the main character or support it, but he is sometimes colliding with the main character`s view or exert tension on his own view. This text also, except the fact that it is analyzing the documentary movie 「Dong」 and the painting 「Wen chuang」, focuses on the new style of art form where the documentary movie 「Dong」 is screened in the space where the painting 「Wen Chuang」 is presented, and the 「Wen Chuang」 is presented where the documentary movie 「Dong」 is screened.
일과성 완전 기억상실로 발현한 개회충증 및 이차성 과호산구증가증 1예
안영은 ( Young Eun Ahn ),배성만 ( Seongman Bae ),정영진 ( Yeong Jin Jeong ),박소영 ( So Young Park ),신보미 ( Bomi Shin ),김태범 ( Tae-bum Kim ),조유숙 ( You Sook Cho ),문희범 ( Hee-bom Moon ),권혁수 ( Hyouk-soo Kwon ) 대한천식알레르기학회 2016 Allergy Asthma & Respiratory Disease Vol.4 No.3
Toxocariasis is an important cause of secondary hypereosinophilia in Korea. Here, we describe a rare case of toxocariasis presenting as transient global amnesia due to secondary hypereosinophilia. A 44-year-old male visited the Emergency Department (ED) for transient global amnesia. He ate raw cow liver and omasum 2 weeks before the ED visit. The initial peripheral blood eosinophil count was 15,250/μL and serologic test for serum specific IgG antibodies to Toxocara canis larval antigen was positive. Radiologic studies revealed multiple small embolic infarctions of brainwithout cardioembolic sources or vascular abnormalities. He was treated with systemic corticosteroid, and neither neurologic deficit nor motor deficit was left. In our current case, the patient have a history of frequently eating raw cow liver and omasum, and his total IgE level was extremely high (>5,000 IU/mL). Thus, the patient was diagnosed as having toxocariasis and secondary hypereosinophilia. Toxocariasis should be considered in the differential diagnosis in patients with eosinophilia and atypical neurologic symptoms, such as transient amnesia. (Allergy Asthma Respir Dis 2016;4:217-220)