항공사진을 이용한 정밀도로지도 구축에 관한 연구

최태석(Choi, Tae Seok),윤하수(Yoon, Ha Su),최윤수(Choi, Yun Soo),이원종(Lee, Won Jong),장수영(Chang, Soo Young) 대한공간정보학회 2020 대한공간정보학회지 Vol.28 No.3

자율주행기술은 4차 산업혁명을 대표하는 기술로 주목되고 있음에 따라 자율주행차 지원을 위한 정밀도로지도 구축에 많은 투자가 이루어지고 있다. 현재 정밀도로지도는 지상 mobile mapping systems(MMS) 측량을 통해 구축되고 있지만, 장비 및 비용·효율의 한계가 존재한다. 이 연구는 정밀도로지도 구축에 있어 항공사진을 이용하여 구축된 정밀도로지도 분석을 통해 정밀도로지도 구축 가능성을 검토하였다. 검토 결과 지상표본거리 12cm 항공사진을 이용할 경우 지상표본거리 25cm 항공사진보다 구축 가능한 레이어 유형의 범위가 넓었으며, 지상표본거리 12cm 항공사진을 통해 구축된 정밀도로지도의 정밀도를 분석한 결과 평면오차는 0.15m, 수직오차는 0.20m 이내로 확인되었다. 이는 국토지리정보원의 정밀도로지도 품질검사 기준인 벡터데이터 절대정확도 0.25m를 모두 만족하는 수치로 나타났다. 레이어 구축범위 및 정밀도 분석결과를 고려해볼 때 정밀도로지도 구축 시 지상 MMS 측량 외 항공사진측량을 필요에 따라 활용할 경우 MMS장비 한계의 보완과 효율적인 정밀도로지도 제작·갱신이 가능할 것으로 기대된다. As autonomous driving technology is attracting attention as part of the 4th industrial revolution, significant investment is being made in developing high definition road maps to support autonomous vehicles. Currently, high definition road maps are being developed through land-based Mobile Mapping Systems surveying, but there are limitations in terms of equipment, cost, and efficiency. This study examined the possibility of developing a high definition road map through aerial photogrammetry rather than via existing methods. As a result, when using aerial photographs with a Ground Sampling Distance(GSD) of 12 cm, the range of layer types that can be constructed was wider than that of a 25 cm GSD aerial photograph. As a result, the HDmap developed through aerial photogrammetry with the 12 cm GSD contributed to plane and vertical errors of 0.15 m and 0.20 m, respectively. These values satisfy a vector data absolute accuracy of 0.25 m, which is the inspection standard for high definition road map quality defined by the National Geographic Information Institute. Considering the range of layers that can be constructed and the results of precision analysis, it is possible to supplement equipment limitations, and create and update an efficient high definition road map using aerial photogrammetry in addition to land-based MMS surveying.

항공사진을 이용한 정밀도로지도 구축 가능성 분석

최태석(Taeseok Choi),최윤수(Yunsoo Choi),우병진(Byeongjin Woo),장수영(Sooyoung Chang) 대한공간정보학회 2020 한국지형공간정보학회 학술대회 Vol.2020 No.6

목뼈 가동 운동과 머리목 굽힘 운동이 만성 목통증 환자의 동적균형과 보행변인에 미치는 영향: 무작위 임상시험

최태석 ( Tae-seok Choi ),유병호 ( Byeong-ho Ryu ),이상빈 ( Sang-bin Lee ) 대한물리의학회 2020 대한물리의학회지 Vol.15 No.2

PURPOSE: The aim of this study is to find a more efficient intervention method through a study of the gait variables and dynamic balance of chronic neck pain patients. METHODS: Forty subjects aged between 40 and 60 years were allocated randomly to two groups; The first group performed PA (Posteroanterior Mobilization), and the second group conducted CCF (Craniocervical Flexion Exercise). The gait variability measured the speed, cadence, and dynamic balance in the forward, leftward, rightward, and rearward directions. An independent t-test, Wilcoxon signed-rank test, and paired t-test were used for statistical analysis. RESULTS: In the dynamic balance measurements, the variability of PA (p < .000) and CCF (p < .000) in the rightward direction, PA (p < .004) in leftward direction and forward direction increased significantly (p < .013). In an analysis of the gait variability, the cadence increased significantly in the PA group (p < .022) and not significantly in the CCF group (p < .056). On the other hand, there was no increase in the speed variable, in the PA group (p < .437). In the CCF group, the cadence increased significantly (p < .022). The differences in the PA and CCF group differences were not significant. CONCLUSION: The PA group showed a significant increase in the forward (p < .013), leftward (p < .004), and rightward directions (p < .000). Speed was significant in the CCF group, and cadence was significant in the PA group. The dynamic Balance was effective in the rightward direction in both groups, but there was no significant difference between the two groups.

지상 LiDAR를 이용한 하수사각형거 안전점검 개선방안에 대한 연구

최태석(Taeseok Choi),양석철(Seokcheol Yang),최윤수(Yunsoo Choi),윤하수(Hasu Yoon) 대한공간정보학회 2020 한국공간정보학회 학술대회 Vol.2020 No.11

Effect of Lumbar Mobilization on Erector Spinae Activity: Protocol for Systematic Review and Meta-Analysis

Tae-Seok Choi(최태석),Ok-Kon Moon(문옥곤) 한국엔터테인먼트산업학회 2024 한국엔터테인먼트산업학회논문지 Vol.18 No.3

본 연구는 요추 관절가동기법이 건강한 사람의 척추기립근(ES)의 근활동에 미치는 영향을 확인하기 위해 고안되었다. 대부분의 이전 연구들은 요통이나 요추 기능 장애를 가진 환자들에 초점을 맞추었지만, 건강한 사람에 대한 연구는 상대적으로 많이 이루어지지 않았다. 이 연구는 PRISMA-P 프로토콜을 준수하여, 2024년 4월 1일까지 Cochrane Central Register of Controlled Trials, EMBASE, MEDLINE, Web of Science, CINAHL, Pedro, Clinical Trials.gov, gray literature의 검색을 통해 진행한다. 허리관절가동기법, 허리교정기법을 받은 18-65세의 건강한 사람들과 실험에 노출되지 않은 대조군도 무작위 대조 시험(RCT)에 포함된다. 연구 결과는 95% 신뢰구간에서 가중치 또는 표준화된 평균 차이로 표시된다. 이질성 검정에서 통계적으로 유의하지 않은 경우 만텔헨젤 분석을 시행하고, 이질성 검정에서 통계적으로 유의성이 관찰되면(50% 이상 또는 P < 0.1) 메타 분석 없이 질적 분석을 시행한다. 본 연구는 요추 가동운동이 건강한 사람의 ES 활동을 증가시키거나 감소시키는지를 탐구한다. This study was designed to determine the effect of lumbar joint mobilization techniques on muscle activity of the erector spinae (ES) muscles in healthy individuals. Previous reviews on the effect of lumbar mobilization on muscle activity have focused mainly on patients with lower-back pain and lower-back dysfunction; few studies have been conducted on healthy people. The study protocol was designed, and will be conducted and reported, using the Preferred Reporting Items for Systematic Review and Meta-analysis Protocols (PRISMA-P). Electronic databases such as the Cochrane Central Register of Controlled Trials, EMBASE, MEDLINE, Web of Science, CINAHL, Pedro, ClinicalTrials.gov and gray literature will be searched from inception to April 1, 2024. Randomized controlled trials (RCTs) that included subjects with healthy people (aged 18–65 years) receiving lumbar mobilization versus another intervention (exercise), manipulation (high-velocity low amplitude, etc.) and a non-exposed control group will be included. Outcomes will be presented as weighted or standardized mean differences, with 95% confidence intervals. If the heterogeneity test is not significant, the Mantel–Haenszel method will be applied as the fixed-effects model. If statistical heterogeneity is observed (I2 ≥ 50% or P < 0.1), the random effects model will be selected. If the heterogeneity is large, qualitative summaries will be created instead, without meta-analysis. This study will explore whether lumbar mobilization applied to the lower back increases or decreases ES activity.

장거리 달리기가 소화관 호르몬에 미치는 영향

최석준 ( Suck Jun Choi ),채정룡 ( Jeong Ryong Chae ),문용식 ( Yong Shig Moon ),최태석 ( Tae Suck Choi ),심미령 ( Mi Ryeong Sim ),최석채 ( Suck Chei Choi ) 한국운동영양학회 2004 Physical Activity and Nutrition (Phys Act Nutr) Vol.8 No.2

The purpose of this study was to determine the effect of long distance running on the level of gastrointestinal hormones such as gastrin which stimulates the secretion of gastric acid, insulin and glucagon which affect glucose metabolism as well as the level of glucose. Method: Twenty four long distance runners (male 16, female 8) participated in this study. Studies were performed after an overnight fasting. The levels of gastrin, insulin, glucagon, and glucose in blood were measured at 30min before and after exercise, and then they were measured again at 24 hr after 10 km race. Result: Plasma gastrin level was increased immediately after exercise (p<0.05), while no significant changes were observed before and after 24 hours of exercise. Plasma insulin level was decreased immediately after exercise (p<0.05). Plasma glucagon level was elevated immediately after exercise (p<0.05). However, there was no significant difference in the level of plasma glucose level during the study period. Conclusion: These results indicate that the elevated level of gastrin in long distance runner may be involved in acid-related gastrointestinal disease. The changes of insulin and glucagon levels may represent the constant blood glucose level and further imply the fine regulatory mechanism of glucose homeostasis in blood during short time exercise in long distance runners.

도축장의 생,해체검사를 통한 경산우 및 미경산우 감별법(1)

최임용 ( Im Yong Choi ),최태석 ( Tae Suk Choi ),이달주 ( Dal Ju Lee ),이해영 ( Chang Sik Rho ),노창식 ( Kyu Hiun Kim ),김규현 ( Eun Kim ),김은 ( Taek Boo Kweon ),권택부 ( Jung Hark Lee ),이정학 한국가축위생학회 2007 韓國家畜衛生學會誌 Vol.30 No.3

This study was performed to make helpful standard for discrimination of cows from heifers by uterine and ovarian section inspection. A total of 3,736 heifers and 249 cows were inspected from January to November 2006 in Karak Market Slaughter house. Firstly, it was obvious that non-corpus albicans were observed in almost heifers(3,597/3,736, 96.3%), but there were distinctive corpus albicans in all cows(249/249 100%). Secondly, another evident was that the length and diameter of the horn in uterus was below 30㎜ in 94.5%(3,267/3,736) heifers, but above 30㎜ in 90.4%(225/245) cows, and it was easy to distinguish between right and left horn by difference of size in 87.6%(218/249) cows. Thirdly the diameters of pelvic cavity was below 220㎜ in 96.8%(3,615/3,736) heifers, but was over 200㎜ in 85.1%(212/249) cows. Fourthly another difference was found in second sacrum union condition and 13th thoracic vertebral process`s states. In case of heifers, it was distinctive five lines in each second sacrum, but it was non-distinctive or united in the same each lines of the sacrum in cows. Fifthly in the results of 13th thoracic vertebral colors, the ratio between red color and white color was 7:3 in heifers(3,385/3,736, 90.6%), but that was 2:8 in cows(199/249, 79.9%). Consequently, it was possible to use the method which discriminated cows from heifers by uterine and ovarian section inspection in large scaled field slaughter house.

도축장의 생,해체검사를 통한 경산우 및 미경산우 감별법(2)

최임용 ( Im Yong Choi ),최태석 ( Tae Suk Choi ),이달주 ( Dal Ju Lee ),이해영 ( Hae Yeong Lee ),김연하 ( Yeon Ha Kim ),이경혜 ( Kyung Hye Lee ),노창식 ( Chang Sik Rho ),김규현 ( Kyu Hiun Kim ),김은 ( Eun Kim ),신방우 ( Bang Woo Si 한국가축위생학회 2008 韓國家畜衛生學會誌 Vol.31 No.3

This study was performed to establish the discrimination of the corpus albicans that were formed after normal parturition and abortion in Holstein, The corpus albicans were obtained from 504 cows and 506 heifers slaughtered in the Agricultural Cooperative`s Livestock Products Joint Market of Seoul City from March 2007 to October 2007. The difference in a gross examination (morphology, fibrogenesis, deposit state, color, and size) among the fixtures that exist in their ovaries was investigated. All of the cows had corpus albicans in their ovaries: 423 cows (83.9%) had less than three corpus albicans, 81 (16.1%) had more than four. In the heifers, however, 463 (91.05%) had no corpus albicans, 39 (7.7%) had one, and four (0.8%) had more than two. In the types of corpus albicans 73.2% of the cows had oval-type, 14.4% had circular-shaped, 12.4% had irregular-type. In the aborted heifers, however, oval-type appeared in 88.6% and circular-shaped appeared in 11.4%, and no irregular-type was found. There was no significant difference in the fibrogenesis and size of corpus albicans between cows and aborted heifers. However, slight difference in the color of the corpus albicans was observed between two types. In conclusion, it is not easy to discriminate by gross examination of ovary between cows and aborted heifers in the slaughter house.

주정중독에 동반된 우울증의 치료에서 Paroxetine과 Amitriptyline의 이중맹 비교 : 치료초기 2주 동안의 행동학적 부작용

윤진상,윤보현,최태석,김용범,이형영,Yoon, Jin-Sang,Yoon, Bo-Hyun,Choi, Tae-Seok,Kim, Yong-Bum,Lee, Hyung-Yung 대한생물정신의학회 1996 생물정신의학 Vol.3 No.2

본 연구는 주정중독에 동반된 우울증 환자의 치료에서 적어도 행동학적 부작용의 관점에서는 PAR이 AMI보다 우수함을 증명하였다. 이러한 PAR의 행동학적 효과의 우수성은 환자의 삶의 질을 향상시키고 결국 치료결과를 높이는데 관여하리라고 생각된다. Objective : It has been proposed that cognition and related aspects of mental functioning are decreased in depression as well as in alcoholism. The objective of the study was to compare behavioral side effects of paroxetine and amitriptyline in depressed patients accompanied by alcoholism. The focused comparisons were drug effects concerning psychomotor performance, cognitive function, sleep and daytime sleepiness during the first 2 weeks of treatment. Methods : After an alcohol detoxification period(3 weeks) and a washout period(1 week), a total of 20 male inpatients with alcohol use disorder (DSM-IV), who also had a major depressive episode(DSM-IV), were treated double-blind with paroxetine 20mg/day(n=10) or amitriptyline 25mg/day(n=10) for 2 weeks. All patients were required to have a scare of at least 18 respectively on bath the Hamilton Rating Scale far Depression(HAM-D) and Beck Depression Inventory(BDI) at pre-drug baseline. Patients randomized to paroxetine received active medication in the morning and placebo in the evening whereas those randomized to amitriptyline received active medication in the evening and placebo in the morning. All patients performed the various tasks in a test battery at baseline and at days 3, 7 and 14. The test battery included : critical flicker fusion threshold for sensory information processing capacity : choice reaction time for gross psychomotor performance : tracking accuracy and latency of response to peripheral stimulus as a measure of line sensorimotor co-ordination and divided attention : digit symbol substitution as a measure of sustained attention and concentration. To rate perceived sleep and daytime sleepiness, 10cm line Visual analogue scales were employed at baseline and at days 3, 7 and 14. The subjective rating scales were adapted far this study from Leeds sleep Evaluation Questionnaire and Epworth Sleepiness Scale. In addition a comprehensive side effect assessment, using the UKU side effect rating scale, was carried out at baseline and at days 7 and 14. The efficacy of treatment was evaluated using HAM-D, BDI and clinical global impression far severity and improvement at days 7 and 14. Results : The pattern of results indicated thai paroxetine improved performance an mast of the lest variables and also improved sleep with no effect on daytime sleepiness aver the study period. In contrast, amitriptyline produced disruption of performance on same tests and improved sleep with increased daytime sleepiness in particular at day 3. On the UKU side effect rating scale, mare side effects were registered an amitriptyline. The therapeutic efficacy was observed in favor of paroxetine early in day 7. Conclusion : These results demonstrated thai paroxetine in much better than amitriptyline for the treatment of depressed patients accompained by alcoholism at least in terms of behavioral safety and tolerability, furthermore the results may assist in explaining the therapeutic outcome of paroxetine. For example, and earlier onset of antidepressant action of paroxetine may be caused by early improved cognitive function or by contributing to good compliance with treatment.

스포츠 스타의 모델 이미지가 광고태도, 브랜드자산 및 구매의도에 미치는 영향

김병식 ( Byung-shik Kim ),최태석 ( Tae-suk Choi ),유종만 ( Jong-man Yoo ) 한국체육대학교 체육과학연구소 2016 스포츠사이언스 Vol.33 No.2

이 연구는 스포츠 스타의 모델 이미지가 광고태도, 브랜드자산 및 구매의도에 미치는 영향을 규명하는데 그 목적이 있으며, 광고모델을 선정하는데 있어서 스포츠 스타 모델의 효용성을 증명하는데 실증적인 기초자료를 제공하는데 그 의의가 있다. 자료 수집을 위해 서울 및 경기도에 위치한 K대학교, H대학교, Y대학교의 학생들을 대상으로 총 300부의 설문지를 배포하였으며, 6부를 제외한 294부(98%)를 최종 유효 표본으로 사용하였으며, SPSS 21과 AMOS 21을 이용하여, 빈도분석, 탐색적 요인분석, 확인적 요인분석, 신뢰도분석, 상관관계분석, 구조방정식 모형 검증을 실시하였다. 그 결과, 첫째, 스포츠 스타의 모델 이미지는 광고태도에 유의한 영향을 미치는 것으로 나타났다. 둘째, 스포츠 스타의 모델 이미지는 브랜드자산에 유의한 영향을 미치는 것으로 나타났다. 셋째, 스포츠 스타의 모델 이미지는 구매행동에 유의한 영향을 미치는 것으로 나타났다. 넷째, 광고태도는 구매행동에 유의한 영향을 미치는 것으로 나타났다. 다섯째, 브랜드자산은 구매행동에 유의한 영향을 미치는 것으로 나타났다. 마지막으로 여섯째, 광고태도는 브랜드자산에 유의한 영향을 미치는 것으로 나타났다. 따라서 우호적인 광고태도와 브랜드자산의 제고를 위해 스포츠 스타의 모델 이미지를 이용한 광고정책을 시도 해볼만 하다고 판단되며, 스포츠 선수의 입장에서도 최상의 기량 유지와 불법행위에 연관되지 않는 사생활 관리를 위해 항상 노력해야 할 것이다. The purpose of this study was to offer fundamental data on sport star model starring advertisement by studying what effect of sport stars’ model image on advertising attitude, brand equity and purchasing intention. The survey was done through 300 members in university in Seoul, Gyeonggi and excluding 6 copies ran an analysis on the remaining 294(98%) copies. After question investigating the data which is collected used SPSS 21 and AMOS 21 program, frequency analysis, exploratory factor analysis, confirmatory factor analysis, Cronbach’s α, correlation analysis, path analysis through structural equation model(SEM). The result of this study were as follows. First, sport stars’ model image showed significant effect on advertising attitude. Second, sport stars’ model image showed significant effect on brand equity. Third, sport stars’ model image showed significant effect on purchasing intention. Fourth, advertising attitude showed significant effect on purchasing intention. Fifth, brand equity showed significant effect on purchasing intention. Sixth, advertising attitude showed significant effect on brand equity.