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SGM 누적 정합 비용 공간의 최소 비용 보팅을 통한 스테레오 시차 영상의 반복적 개선
정원제(Won-Je Jeong),이민재(Minjae Lee),박순용(Soon-Yong Park) 대한전자공학회 2021 전자공학회논문지 Vol.58 No.7
스테레오 정합 방법에서 비용 집계는 주변의 정보를 이용하여 시차 영상을 개선하는 단계이다. 기존의 비용 집계 단계 중 하나인 SGM은 초기 비용 계산으로 생성된 비용 볼륨(Cost Volume)에서 누적 방향에 따른 최솟값을 계산하여 시차를 개선한다. 본 논문에서는 기존 SGM의 누적 정합 비용의 보팅을 계산하여 시차를 개선하는 방법을 제안한다. 우리가 제안한 방법은 SGM의 누적 방향에 의해 계산 된 각 누적 볼륨에서 최솟값 선택을 이용하여 확률 볼륨을 생성한다. 다음으로 확률 볼륨으로 새로운 페널티를 생성하여 비용 볼륨에 추가하고 다시 누적하여 확률 볼륨을 계산한다. 제안 방법은 계산된 페널티를 반복 계산하여 비용 볼륨을 수정하여 시차를 개선한다. 후 처리 단계로 우리는 좌우 일관성 검사, 홀 필링(Hole filling) 및 가중치 중앙 필터링(Weighted Median Filter)하여 시차를 개선한다. Middlebury 데이터로 방법을 평가 한 결과 기존 SGM보다 제안 방법이 더욱 뛰어난 것으로 확인되었다. In the stereo matching, cost aggregation improves disparity images using surrounding cost value. The SGM(Semi global Matching)method, one of the traditional cost aggregation steps, improves disparity by calculating a minimum value according to an aggregation direction of surrounding costs from a cost volume generated by initial cost computation. In this paper, we propose a method to improve the disparity image by calculating the probability of the aggregation matching cost of SGM. Our method generates a probability volume by using the minimum value selection in each aggregated volume generated by the aggregation direction of the SGM. Next, a new penalty is created as a probability volume, added to the cost volume, and aggregated again to calculate the probability volume. The proposed method improves disparity by iterative calculating the calculated penalty and correcting the cost volume. Next, the probability volume is recalculated by adding a new penalty calculated as the probability volume to the SGM. Then, the cost volume is updated by iteratively calculating the probability volume. As a post-processing step, we improve the disparity by performing a left-right consistency check, hole filling, and weight median filtering. As a result of evaluating the Middlebury data set method, it confirmed that the proposed method is superior to the SGM.
남녀 대학생에서 십선혈(十宣穴) 사혈(瀉血)이 혈압, 체온 및 맥박수에 미치는 영향
이동건,정원제,이현진,조현석,김경호,김갑성,Lee, Dong-Gun,Jeong, Won-Je,Lee, Hyun-Jin,Cho, Hyun-Seok,Kim, Kyung-Ho,Kim, Kap-Sung 대한침구의학회 2008 대한침구의학회지 Vol.25 No.4
Objectives : Sypsun-points are located at the tips of all fingers, 0.1 chon(寸) from the finger nails, totaling 10 points on both hands. These points have been used for emergency care, fainting, epilepsy, cerebrovascular accidents, hypertension, unconsciousness, high fever etc. in oriental medicine. The most common technique is bleeding with a needle at these points. We investigated whether Venesection at the Sybsun-points has effects on blood pressure and body temperature and pulse rate in humans aged from 20 to 30 who had no specific past history and whose vital signs are in normal range. Methods : 67 persons were studied from March to June 2008. They were composed of Sample group(n=36) and Normal group(n=31). Both two groups kept a steady state an hour before venesection. In both group, we checked blood pressure and body temperature and pulse rates 6 times( 30min. before and just before treatment, and just after, 30, 60, 90min after treatment). All study environments were same between sample and normal group. But only, normal group didn't carry out venesection at the Sybsun-points. Results : In a comparison of before and after venesection at the Sybsun-points, any Statistical significance was not evaluated. Though pulse rate in sample group was significantly decreased after venesection(p<0.05), it has no statistical significance because normal group's pulse rate was also significantly decreased and between two groups had no statistical difference. Conclusions : Though further study is needed, our findings suggest that venesection at the Sybsun-points has no significant effect on blood pressure and body temperature, and pulse rate in humans who had no specific past history and whose vital signs are in normal range. Also in that case, we may know that pain and tension result from venesection at the Sybsun-points have no significant effect on blood pressure and body temperature and pulse rate.
자하차약침(紫河車藥鍼)의 MIF 활성 억제를 통한 LPS 유발 류마티스성 관절염의 치료 효과
황지혜,조현석,이현진,이동건,정원제,정찬영,김경호,Hwang, Ji-Hye,Cho, Hyun-Seok,Lee, Hyun-Jin,Lee, Dong-Gun,Jeong, Won-Je,Jung, Chan-Yung,Kim, Kyung-Ho 대한침구의학회 2008 대한침구의학회지 Vol.25 No.3
Objectives : This study is to evaluate Effect of Inhibition Macrophage Migration Inhibitory Factor(MIF) activation by Hominis Placenta Herbal Acupuncture(HPA) on Rheumatic Arthritis(RA). Hominis Placenta is the placenta of healthy human, which is vital-strengthening medical stuff. In recent years, Hominis Placenta applied to chronic diseases because it makes us more resistance to diseases. Therefore it is supposed that HPA is effective on RA, a kind of autoimmune disease. When RA is induced, MIF is activated, too. MIF affects the process of inflammatory disease including RA. Methods : In order to investigate the effect of Hominis Placenta extraction on MIF(early RA inducing cytokine) and MMP(Matrix Metallo Proteinase)-9 mRNA expression by means of Reverse Transcriptase- Polymerase Chain Reaction(RT-PCR). In this study, we investigated the effect of Hominis Placenta extraction on MIF(early RA inducing cytokine) and MMP-9 mRNA expression by means of RT-PCR. Besides we investigated changing of MIF in synovial membrane and, Interleukin-6 receptor(IL-6R)-$\alpha$(pro-inflammatory cytokine), Signal transducers and activators of transcription(STAT)-3, MMP-9 after treating mouse, which is artificially attacked with RA, with HPA on its $ST_{35}$, LE201 in vivo. Results : 1. As a result of treating Lipopolysaccharide(LPS)-stimulated Raw246.7cell with HPA, MIF(RA related cytokine) and MMP-9 mRNA expression is reduced in vitro. And this reaction is concentration-dependatant. 2. In synovial membrane of the mice treated with HPA, inhibition of MIF, IL-6R-$\alpha$, STAT3 & MMP-9 activation is observed in vivo. Conclusions : From the above results, it might be suggested that HPA mitigate tissue damage originated from RA, because it intercepts the early process of by inhibition MIF activity.
굴곡신연법(屈曲伸延法)으로 시술한 요각통 환자 60례에 대한 임상적 고찰
김은걸,이동건,윤은혜,정원제,김경호,조현석,황민섭,Kim, Eun-Geol,Lee, Dong-Gun,Yoon, Eun-Hye,Jeong, Won-Je,Kim, Kyung-Ho,Cho, Hyun-Seok,Hwang, Min-Seop 척추신경추나의학회 2009 척추신경추나의학회지 Vol.4 No.1
Objectives : The purpose of this report is to estimate Cox flexion distraction treatment by comparing the Improvement of Sciatica treated by Cox flexion distraction treatment with Common treatment. Methods : This study was carried out on 60 patients with Sciatica who were hospitalized in Dongguk University Gyeongju Oriental Hospital from February, 2008 to December, 2008. Group A of 30 patients were taken both common treatment and Cox flexion distraction treatment. And Group B of 30 patients were only taken common treatment. And at treatment conclusion day, we checked and compared VAS(Visual Analogue Scale)and ODI(Oswestry disability index) out of these two group. SPSS(Statistical Program for Social Science) for Windows was used for a statistical analysis and the independent T-test was performed to gauge the improvement of VAS(Visual Analogue Scale)and ODI(Oswestry disability index) out of these two group, in which case, value of P below 0.05 is considered as useful. Results and Conclusions : The results of the VAS(Visual Analogue Scale)and ODI(Oswestry disability index) of comparison analysis between two group at treatment conclusion day, show that the improvement of Sciatica in common treatment with Cox flexion distraction treatment Group is more effective than that in common treatment.
요통환자 대상 오적산 엑스산 투여 임상시험 이상반응 연구
윤은혜,장민기,황지후,이승훈,정원제,이재동,이승덕,김경호,김갑성,김은정,Yoon, Eun-Hye,Jang, Min-Gee,Hwang, Ji-Hoo,Lee, Seung-Hoon,Jeong, Won-Je,Lee, Jae-Dong,Lee, Seung-Deok,Kim, Kyung-Ho,Kim, Kap-Sung,Kim, Eun-Jung 대한침구의학회 2010 대한침구의학회지 Vol.27 No.4
Objectives : This study was performed to report adverse events in Ojeok-san extract powders RCT. Methods : 180 patients with LBP were randomized into groups for a double blind, placebo-controlled clinical study. They received Ojeok-san simple Extract, Ojeok-san complex Extract or placebo in powders, orally dissolved 3times a day for 4weeks. During 4weeks, we researched the symptoms and duration of adverse events and Digest ability, Milk hypersensitivity, Starch hypersensitivity, Caramel hypersensitivity, West-med hypersensitivity, Herb-med hypersensitivity in patients who had adverse events. Results : 52patients(28.9%) had adverse events and of them 44patients(28.9%) had lost adverse events naturally. But 5patients(2.8%) were withdrawn from the research because of the adverse events. Most of the symptoms of adverse event was Gastrointestinal symptom(88.3%) and adverse events frequency was not different from Ojeok-san simple Extract, Ojeok-san complex Extract and placebo. Conclusions : Ojeok-san extract powders had adverse events no different from the placebo, which shows that it is a safe drug.