L-curve를 이용한 광학 흐름 추정을 위한 정규화 매개변수 결정

김종대,김종원,Kim, Jong-Dae,Kim, Jong-Won 한국정보처리학회 2007 정보처리학회논문지B Vol.14 No.4

본 논문은 광학 흐름을 추정하는데 있어서 최적 정규화 매개변수를 결정하기 위한 L-curve 모서리 검출 방법을 제안한다. 기존의 곡률법은 L-curve의 곡률 그래프에서 최대 위치를 찾는 반면, 제안한 방법은 바로 우측 음의 계곡과의 곡률 차가 최대가 되는 양의 봉우리의 위치를 찾아서 매개변수 값을 결정한다. 이 방법으로 선정한 매개변수로 광학 흐름을 추정하면, 평균적으로 최소 오차로부터 단지 0.02 pixel/frame 차이가 나는 것이 실험을 통하여 보여진다. 또한 제안한 방법으로 기존의 모서리 검출법인 곡률법이나 적응 제거법에 비해 최소 오차에 가장 가까운 광학 흐름을 구할 수 있었다. An L-curve corner detection method is proposed for the determination of the regularization parameter in optical flow estimation. The method locates the positive peak whose curvature difference from the just right-hand negative valley is the maximum in the curvature plot of the L-curve. while the existing curvature-method simply finds the maximum in the plot. Experimental results show that RMSE of the estimated optical flow is greater only by 0.02 pixels-per-frame than the least in the average sense. The proposed method is also compared with an existing curvature-method and the adaptive pruning method, resulting in the optical flow estimation closest to the least RMSE.

경기도 거북놀이의 전승과 새로운 계승양상

김종대(Kim, Jong-dae),윤서옥(Yoon, Seo-ok) 중앙어문학회 2014 語文論集 Vol.60 No.-

경기도와 충청도의 내륙지방에서는 추석의 민속놀이로서 거북놀이가 전승되어 왔다. 흥미롭게도 이들 놀이는 주로 청소년이 전승시켜 왔다는 점과 모의 동물로 거북이를 수수 잎으로 만들어서 활용하였다는 점이다. 거북놀이의 기록은 현재까지 역사시대의 문헌에는 찾기가 어려운데, 문헌상으로는 일제침략기의 朝鮮の鄕土娛樂에서부터 찾아볼 수 있다. 일제침략기의 기록에 등장하는 것으로 보아 아마도 조선시대에는 널리 행해졌던 민속놀이로 추정되기는 하나, 현재까지 명확한 기록이 보이지 않아서 언제 어떻게 만들어졌는지를 고증하기란 쉽지 않은 실정이다. 거북놀이의 주체에 대한 논의도 이런 사정 때문인지 여러 가지의 설이 있으나 이들도 확실성이 떨어진다. 하지만 朝鮮の鄕土娛樂을 보면 주로 어린이나 청소년이 주동이 되었다고 하며, 어른이나 성년으로 기록된 사례는 많지 않다. 예컨대 경기도의 경우 용인은 농민, 안성은 남자로 표현되었으며, 충청도의 홍성은 청년, 예산은 어린이와 부인 등으로 되어 있다. 이들 외의 다른 지역은 모두 어린이가 행한 것으로 기록되어 있다는 점이 특징이다. 결국 이들 놀이는 용인이나 안성, 수원 등 대개 다른 지역의 거북놀이와 유사하게 행해졌다고 하는 것으로 보아 어린이들이 주동이 되었음은 쉽사리 짐작된다. 이러한 거북놀이는 일제침략기를 거치면서 한동안 전승이 단절되다가 해방이후 1970년대에 와서 다시 복원하는 운동이 일어난다. 예컨대 음성의 윤병준 선생과 이천의 김종민 선생이 대표적인 예이다. 문제는 이들 복원과정에서 판굿과 농악의 개입이 이루어졌다는 사실이다. 즉 거북놀이의 주도적인 계층이 풍물패로 이전되는 과정에 의해서 과거의 주도층이었던 어린이들이 입지를 잃어버리게 되었다는 점이다. 이런 변화과정은 거북놀이를 민속경연대회나 민속예술축제 등에 출품하려는 시도와 밀접한 관계에 있다. 어린이가 주동이 된 거북놀이의 경우에는 놀이판의 형식화가 없었지만, 이들과 결합하면서 제의과정과 판굿의 연행방식을 갖추게 된다는 점이다. 현재의 연행방식은 대개 이런 틀로 고정화되는 과정을 겪고 있다. 특히 연행의 변화양상은 이들 놀이를 농촌체험 프로그램으로 참여하여 지역 민속문화의 특징을 보여주려는 방식으로 탈바꿈하고 있음은 주목할 만하다. 동시에 단순히 연희되는 것 뿐만 아니라, 거북이 만들기 등 다양한 프로그램을 개발하여 과거의 정형성을 효과적으로 활용하려는 시도를 보여준다는 점에서 전통 민속놀이의 계승 발전에 유의미한 면을 보여주고 있다. Geobuk-nori, the Turtle Play, is performed during Chuseok (a Korean harvest holiday) in Gyeonggi and Chungcheong provinces. During The Turtle Play, young people wear turtle costumes made out of sorghum leaves and go about the village giving their wishes for a good harvest and good luck in the coming year. While there is no historical record of the origin of the play, interestingly, it appeared in Indigenous Entertainment of Joseon, written during the Japanese occupation. Because of the book, it is assumed the play was performed during the Joseon dynasty; however, its origin has not been confirmed. Several theories regarding Turtle Play and Joseon need further research. According to Indigenous Entertainment of Joseon, the play was mainly performed by children. It was rare to see adults performing it, and there are only a few cases of adult involvement: farmers in Yongin, Gyeonggi Province; men in Anseong; young people in Hongseong, Chungcheong Province, and children and married women in Yeosan. Apart from these cases, the play was performed solely by children. Performances of The Turtle Play stopped during the Japanese occupation; however, there was a movement to revitalize it in the 1970s. Mr. Byeongjun Yoon from Eumseong and Mr. Jong-min Kim from Icheon are representatives of this revitalization movement. In the process of revitalization, some changes were made, such as the inclusion of shamanic rituals and children lost their roles as the main performers of the play. This change is closely related to participation of the play in competitions such as the National Folk Arts Contest and the National Folk Art Festival. When the play was performed by children, it did not have a specific formality. However, it changed into a combination of ritual and shamanic ceremony, and there are new ways of performing the play. Additionally, The Turtle Play is often used to introduce regional folk culture to tourists. In relation to this, various educational programs, such as a class for making turtles, were developed. In terms of production, these kinds of programs might have a positive effect in that they may help people understand more about the play and have more interest in it.

부정생진탕(扶正生津湯)이 방사선(放射線) 조사(照射) 부작용(副作用)에 미치는 영향(影響)

김종대,조종관,Kim, Jong-Dae,Cho, Chong-Kwan 대한한방내과학회 1998 大韓韓方內科學會誌 Vol.19 No.2

To evaluate the radioprotective effects of Bujeongsaengjintang studies were done experimentally. The results were obtained as follows: 1. WBC, Platelet and RBC were significantly increased in Bujeongsaengjintang treated group as compared with control group after exposure to radiation by Liniac. 2. By FACS analysis of splenic leukocyte after exposure to radiation by Liniac, T cell, T-helper cell and macrophase were significantly increased in Bujeongsaengjintang treated group. 3. In histological changes of ileum and jejunum of Balb/C mice after exposure to radiation by Liniac, exclusion and fusion of villi were decreased in Bujeongsaengjintang treated group as compared with control group. From above results, it is suggested that Bujeongsaengjintang is available to a clinic for the protection from damage by radiotherapy to cancer.

Bromobenzene독성(毒性)에 의한 간기능손상(肝機能損傷)에 미치는 가미오령산의 영향(影響)

김종대,Kim, Jong-Dae 대한한방내과학회 2000 大韓韓方內科學會誌 Vol.21 No.1

Objective : To investigate the hepatoprotective effects of Gami-oryungsan on the liver damage induced by bromobenzene. Method : The development of fibrosis and acute liver injury was examined by the chemical analysis of AST, AL T, ${\gamma}$-GTP . and epoxide hydrolase glutathione S-transferase glutathione peroxidase enzyme activity, lipidoperoxide levels, glutathione levels were measured and oberved. Results : The increasing levels of lipidoperoxide was decreased proportionally according to dose of extract GO. Epoxide hydrolase glutathioneS-transferase glutathione peroxidase enzyme activity highly increased in GO pre-acupunctured group compared with the group treated with only bromobenzene. The increase of serum AST, AL T, ${\gamma}$-GTP enzyme activity of mice by bromobenzene was inhibited by the administration of GO. Lipidoperoxide levels in rat's liver decreased compared to the case of bromobenzene-treated group. The levels of Glutathione decreased by bromo benzene were increased highly in GO pre-acupunctured group. Conclusion : These results suggest that GO extract recovers the damage of liver due to bromobenzene intoxication by decreasing the lipid peroxidation AST AL T ${\gamma}$-GTP enzyme activity and increasing epoxide hydrolase glutathioneS-transferase glutathione peroxidase enzyme activity, glutathione levels.

청폐사간탕(淸肺瀉肝湯)과 Mannitol투여(投與)의 뇌경색환자(腦硬塞患者)에서 흉막삼출증병발보고(胸膜渗出症倂發報告)

김종대,김선강,Kim, Jong-Dae,Kim, Seong-Kang 대한한방내과학회 2000 大韓韓方內科學會誌 Vol.21 No.4

The patient who has DM, Hypertension, Arrithemia, Arteral fibrillation, Heart failure attacted cerebral infartion and he was took treatment by chungpesagan-tang and mannitol at the same time for 4 days and only chungpesagan-tang for 3 days. General condition improved but at seventh day cold sweating and hypothermia appeared. So we take chest x-ray. The result is fleural effusion. Chungpesagan-tang is the method of Purgative action so heart function is injured in circulation. In the results we consider that the medication of chungpesagan-tang and mannitol at the same time is bad influence on heart and induce ftueral effusion.

동시성 및 이시성 간전이 위암의 임상병리학적 특성 및 예후의 차이

김종대,하태경,권성준,Kim, Jong-Dae,Ha, Tae-Kyung,Kwon, Sung-Joon 대한위암학회 2009 대한위암학회지 Vol.9 No.3

목적: 동시성 및 이시성 간전이 위암환자들을 대상으로 임상병리학적 특성 및 예후의 차이에 대하여 알아보고 치료 방법에 따른 예후에 대하여 알아보고자 하였다. 대상 및 방법: 1992년 6월부터 2006년 12월까지 한양대학교병원 외과예서 치료받은 위암 환자 중 간전이가 발견된 67명의 환자를 대상으로 임상병리학적 특징 및 치료 방법에 대하여 후향적 분석을 시행하였다. 결과: 두 군의 임상병리학적 특성에 대한 비교에서 림프관 침윤 여부(P=0.041)와 혈관 침윤 여부(P=0.036)가 동시성군에서 유의하게 많았다. 전체 간전이 위암환자의 1년 생존율과 중앙생존기간은 38.9%, 9.2개월이며 동시성 간전이군에서는 30.9%. 9.2개월이었고 이시성 간전이군에서는 44.5%, 9.7개월로 두 군 사이에 통계학적으로 유의한 차이는 없었다(P=0.436). 치료 방법을 수술 혹은 영상의학적 중재술 등의 국소적 치료와 전신적 항암화학치료를 병행한 경우, 전신적 항암화학치료만 받은 경우, 치료 받지 않은 경우 등 세 가지로 나누었을 때 동시성 간전이군과 이시성 간전이군 사이에 치료 방법의 차이는 없었으며 두 군 모두에서 국소적 치료를 전신적 치료와 병행하였을 경우 생존율이 높았다(P<0.001). 결론: 간전이 위암에 있어서 간전이 병소의 발생 시점에 따른 예후의 차이는 없을 것으로 생각한다. 또한 간전이 발견 시점과 관계 없이 적응 예가 되는 경우 수술적 치료나 영상의학적 중재술 등의 적극적인 치료가 환자의 예후 향상에 기여할 수 있겠다. Purpose: The aim of this study was to compare synchronous and metachronous hepatic metastases in patients with gastric cancer to determine clinicopathologic features and differences in prognosis as a function of the timing of the metastasis and the treatment modality rendered. Materials and Methods: Sixty-seven patients who were diagnosed with gastric cancer metastatic to the liver and treated at the Hanyang University Hospital between June 1992 and December 2006 were retrospectively analyzed to study the pertinent clinicopathologic features and effect of treatment methods. Results: There was a significant difference with respect to lymphatic (P=0.041) and vascular invasion (P=0.036) in comparing the clinicopathologic features between the patients with synchronous and metachronous hepatic metastases. The 1-year survival rate and median survival time of patients with gastric cancer and liver metastases were 38.9% and 9.2 months in the entire patient cohort, 30.9% and 9.2 months in the synchronous group, and 44.5% and 9.7 months in the metachronus group, respectively (P=0.436). The group of patients undergoing local treatment (such as surgery and radiologic intervention) followed by systemic chemotherapy, the group of patients receiving systemic chemotherapy only, and the untreated group of patients were compared, and there was no difference between the synchronous and metachronous groups. The synchronous and metachronous groups had high survival rates with local treatment. Conclusion: In patients with gastric cancer and liver metastases, there was no difference in prognosis based on the timing of the hepatic metastases. Independent of the timing of hepatic metastasis, aggressive treatment, such as surgery and radiologic intervention, may help improve the prognosis.

종양(腫瘍)의 전이(轉移) 및 재발(再發) 억제(抑制)에 관(關)한 고찰(考察)

김종대,조종관,Kim, Jong-Dae,Cho, Chong-Kwan 대한한방내과학회 1997 大韓韓方內科學會誌 Vol.18 No.2

Many types of cancer, current therapy other than surgery and/or radiotherapy was of only limited efficacy. At the basic chinese traditional medicine(TCM) there was increased understanding of the additional basic and clinical neoplasm treatment research. The metastasis and recurrence of neoplasm was the basis of yudu(餘毒) on remained neoplasm cell and stagnation of blood, thermotoxo, phlegm, asthenia of healthy enerngy, stagnation of vital energy. The principles therapy of neoplasm on metastasis and recurrence was based on knowledge of the method of support the healthy energy and strengthen the body resistance, promote blood circulation to remove blood stasis, clear away heat and toxic materials, dissipate phlegm and disperse the accumulation of evils, regulate vital energy and disperse the depressed vital energy. But the major clinical features of neoplasm was to be considered in developing a treatment plan include (1) distinguish between clinical and pathologic staging - acute and chronic, (2) classification of pathologic pattern, and (3) distinction of body situation : for examples asthenia - sthenia etc. It was most important to distinguish between supporting the healthy and eliminating the evil factors and to treat differently at the root and the branch cause of a neoplasm. This paper's results indicate that identification and effective use of TCM medicines inhibited netastasis and decreased recurrence and then we were able to expect increasing survival rate.

청간산(淸肝散)이 흰쥐의 알코올 대사(代謝) 효소(酵素) 활성도(活性度)에 미치는 영향(影響)

김종대,정지천,신억섭,Kim, Jong-Dae,Jeong, Ji-Cheon,Sin, Eok-Seop 대한한방내과학회 1997 大韓韓方內科學會誌 Vol.18 No.1

Chunggansan was tested for the effects on detoxication mechanism of alcohol. Chunggansan was treated firstly into samples, and then ethanol intoxicated animal models were set with them. The administration of Chunggansan to the rats increased proportionally in alcohol dehydrogenase activities in liver in relation to the level of concentration and days of treatment. Especially, the alcohol dehydrogenase was the most active when the concentration of extract was 200mg/kg and it was 7th day. The enzyme activities of alcohol dehydrogenase and aldehyde dehydrogenase in liver highly increased in Chunggansan pre-medicating group compared to that of ethanol treated group. Also, the blood ethanol concentration in rats was considerably decreased. In conclusion, Chunggansan recovers the damage of liver due to acute alcohol intoxication by the increased enzyme activities of alcohol dehydrogenase and aldehyde dehydrogenase.

골수이형성증후군(骨髓異形成症候群) 환자(患者) 일례(一例)에 대한 증례(症例) 보고(報告)

김종대,Kim, Jong-Dae 대한한방내과학회 1999 大韓韓方內科學會誌 Vol.20 No.1

In order to look about the effect and possibility of oriental medical diagnosis and treatment of pancytopenia of myelodysplastic syndrome. For a patient who has pancytopenia. we diagnose him as myelodysplastic syndrome by CBC, LFT, Ultrasonic wave, Vitamin B12 test, Bone marrow test, Folic acid test and doing Herb-medication, Moxa-Tx continually, we observed the change of WBC, RBC. HGB. MCV, Platelet. ESR with following up CBC test ten times Finally, WBC increased by 900, RBC increased by 400000, MCV was reduced by 7fl. HGB increased by 1.3g/dl. Hct increased by 3.2%, ESR was reduced from 127 to 35mm/h. We diagnosed myelodysplastic syndrome as 'CONSUMPTIVE DISEASE' in oreintal medicine. The treatment effect of pancytopenia was achieved by Herb-medication and Moxa-Tx for invigorating qi, enriching the blood, invigorating the spleen and the kidney-yang, Now we need the study of oriental medical treatment for Aplastic Anemia and AML which is similar this.

전산유동해석을 이용한 초고층건물의 내풍해석

김종대,임준택,Kim, Jong-Dae,Im, Jun-Taek 한국전산구조공학회 2012 전산구조공학 Vol.25 No.2