• 대한한방부인과학회지
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• 제26권4호
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• pp.94-106
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• 2013

Objectives: The purpose of this study is to find the effect of Far Infrared Radiation (FIR) about improvement of chief complaints and health state. Methods: For this study we evaluated thermographic images, heart rate variability (HRV), visual analogue scale (VAS) score of 34 patients with various diseases. Tests were done two times, before and after treatments and we compared the test results. We used the temperature difference between CV12 and CV4, both sides of PC8, LR3 for recognizing improvement of blood circulation. We analyzed the change of complexity, stability of autonomic nervous system (ANS) by HRV test. The patients were asked to fill out questionnaire about the severity of symptoms by VAS score. Analyses were undertaken using SPSS ver.12.0.1 and p-value of < 0.05 was considered significant. Results: Statistical analysis shows that Far Infrared Radiation (FIR) had significant efficiency in increasing surface temperature and reducing VAS pain scores. In heart rate variability (HRV) test, LF/HF ratio showed tends to improve. Conclusions: The application of an FIR to whole body appears to alleviate various complaints of patients.

• 정보과학회 논문지
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• 제43권12호
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• pp.1420-1427
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• 2016

본 논문은 통신 환경이 불안정하고 토폴로지가 수시로 변하는 CV(Connected Vehicle) 환경에서 Fog computing과 SDN의 장점을 활용하는 방법에 대해 제시한다. 이를 위해서 먼저 중앙의 컨트롤러는 최신의 네트워크 토폴로지를 유지함으로써 현재 네트워크 상황을 파악할 수 있어야한다. 특히 모바일 환경에서는 컨트롤러가 수집하는 정보 중에서 노드의 움직임 정보가 중요하기 때문에 본 논문에서는 움직임 정보를 세 가지 종류로 세분화하여 관리하고 해당 정보를 효율적으로 활용하고자한다. 본 논문에서 제안하는 모바일 노드의 움직임 정보의 활용 방안은 크게 두 가지로 컨트롤 메시지 횟수를 조절함으로써 컨트롤 오버헤드를 줄이는 것과 통신 단절 시 효율적으로 복구할 수 있는 복구 프로세스를 제안하는 것이다. 복구 프로세스는 두 가지로 모바일 노드의 움직임 정보를 활용하여 연결 상태를 효율적으로 복구하는 방법과 cloud level과 fog level을 구별하여 경로 복구를 수행하는 방법이다. 시뮬레이션 결과, 주어진 환경에서 본 논문이 제안한 방법이 기존 방법에 비해 55% 가량의 컨트롤 오버헤드를 줄이고 통신 단절 시 끊김 시간을 5% 가량 단축시킬 수 있음을 확인하였다.

• 한국멀티미디어학회논문지
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• 제22권12호
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• pp.1415-1429
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• 2019

Nowadays object tracking process becoming one of the most challenging task in Computer Vision filed. A CSR-DCF (channel spatial reliability-discriminative correlation filter) tracking algorithm have been proposed on recent tracking benchmark that could achieve stat-of-the-art performance where channel spatial reliability concepts to DCF tracking and provide a novel learning algorithm for its efficient and seamless integration in the filter update and the tracking process with only two simple standard features, HoGs and Color names. However, there are some cases where this method cannot track properly, like overlapping, occlusions, motion blur, changing appearance, environmental variations and so on. To overcome that kind of complications a new modified version of CSR-DCF algorithm has been proposed by integrating deep learning based object detection and CSRT tracker which implemented in OpenCV library. As an object detection model, according to the comparable result of object detection methods and by reason of high efficiency and celerity of Faster RCNN (Region-based Convolutional Neural Network) has been used, and combined with CSRT tracker, which demonstrated outstanding real-time detection and tracking performance. The results indicate that the trained object detection model integration with tracking algorithm gives better outcomes rather than using tracking algorithm or filter itself.

• 한국환경과학회지
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• 제21권12호
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• pp.1487-1494
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• 2012

This study has been carried out to verify curative effect of lavender and lawn, a green space composition factor. Thus, the physiological index value of blood pressure, heart rate and salivary amylase were measured with object of 16 women in their 20~30s for stress relaxation effect at lavender garden and lawn square, and impression assessment upon SD method as for psychological value was performed in this study. And a survey was conducted on necessity and reason of urban green space with object of 345 men and women urban workers. As a result of variance analysis between groups and multi test of Turkey upon object place, the blood pressure was lowered the same at lavender garden and lawn square, and especially, high blood pressure was greatly lowered to 30 mmHG at lavender garden. On the other hand, low blood pressure group showed the tendency of a little increasing at the same places. And for the pulse, there was difference between high blood pressure group and normal group at the same places. To conclude, at lavender garden and lawn square the blood pressure was made to be lowered when it's high, and when it's low, the effect of returning to sound status, the function of increasing, was verified. In case of impression assessment upon SD method, the lawn square was assessed as resting place and lavender garden diversional place. And over 90% of urban workers responded to the green space's necessity and curative effect, diversion and resting place were adopted for the reason in high-ranking items. As above the green space pattern that urban workers require and curative effect of lavender garden and lawn square were verified. Therefore, the functional green space plan is required, which curative effect, diversion and resting place are considered, for the future green space plan design.

• 대한한방내과학회지
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• 제37권6호
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• pp.940-948
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• 2016

Objectives: This exploratory trial evaluated the possibility of quantitatively measuring several aspects during the "abdominal examination" of traditional Korean medicine. The main results of this study will be used to develop a new diagnostic device for abdominal examinations. Methods: Fifteen healthy volunteers were recruited for this study. Three certified Korean medical doctors assessed the existence of pressure pain, the elasticity of the abdominal muscle, and the tonus at CV12 as gold standards. Then, 2 well-trained investigators measured the pressure pain threshold (PPT), the indentation depth of a bar, and repelling force by pressing CV12. Each investigator measured the above 3 variables 2 times at 1 min intervals using a modified digital algometer. Reliability and validity tests of the 3 variables were performed. Results: There were statistically significant coefficients of intraclass correlation on the 3 variables both between and within the investigators (P<0.001). Also, PPT and repelling force showed statistically significant high sensitivity and specificity in a ROC curve. However, the indentation depth of the bar presented relatively low sensitivity. Conclusions: This new diagnostic method using a modified digital algometer could be a useful tool for quantitative measurement in "abdominal examinations". However, future rigorous clinical studies with a large population will be needed for the verification of its usefulness.

• 한국컴퓨터정보학회논문지
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• 제24권12호
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• pp.35-41
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• 2019

본 논문에서는 원격 제어 홀로그램 기반 인터랙티브 사이니지 디자인에 대해 제안한다. 제안한 방식은 Raspberry Pi 하드웨어 플랫폼 및 Intel realsense r200 카메라를 사용하여 인터랙션이 가능한 홀로그램 사이니지 구조를 구성하였으며, 소프트웨어 파트는 원격 콘텐츠 관리를 위한 Screenly 솔루션과 콘텐츠 제어를 위한 Open CV 기반 솔루션을 기반으로 구성된다. 3D 게임 기술 Unity 5를 기반으로 한 3D 콘텐츠 렌더링 알고리즘을 사용하여 테스트를 진행하였으며, 홀로그램 피라미드 사이니지 구조를 사용한 모델 테스트를 통해 IoS 설계를 위한 3D 데이터 시각화 및 표출이 가능한 새로운 방식을 실험하였다. 본 논문에서는 해당 홀로그램 사이니지 모델에 대하여 기술하였다.

• 한국컴퓨터정보학회논문지
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• 제24권12호
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• pp.59-65
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• 2019

병원정보시스템은 의료계에서 병원의 전반적인 행정 업무 및 의사들의 의료 업무까지 다양한 정보를 포함하고 있다. 본 연구에서는 OpenCV를 이용해서 비전기반 얼굴인식 인증 및 등록 지원 병원정보시스템을 제안하였다. 구현한 보안 모듈 프로그램을 이용하여 병원정보시스템에서 접수 등록 시 병원관계자의 얼굴촬영을 통한 및 수납, 진료 및 처방 과정까지 보안성을 강화하고 개인정보의 2차적인 유출 없이 처리하고자 하였다. 구현한 보안 모듈 프로그램을 통하여 병원정보시스템에서 간호사가 확인할 수 있는 기존의 스티커 종이 태그와 손목 밴드 타입의 개인정보의 출력, 노출 및 인식이 필요 없게 하였다. 보안 모듈 프로그램에서 원본과 대조하여 영상을 아이디와 패스워드로 대신 입력되어하여 개인정보보호 및 인식율을 향상시키도록 하였다.

• Journal of Acupuncture Research
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• 제34권2호
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• pp.49-59
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• 2017

Objectives : This study evaluated the efficacy of electroacupuncture therapy using an insulated needle in adults with abdominal obesity. Methods : This study was a randomized, double-blind, parallel-designed pilot trial. Sixteen participants eligible according to the inclusion and exclusion criteria were randomly divided into an insulated needle group and a control group. Insulated or common needles were inserted at acupoints located on the abdomen (CV12, CV6, ST25, ST27, SP15) and were electrically stimulated for 30 minutes (16 Hz, within tolerable strength). A total of 10 sessions of treatment were performed twice per week for 5 weeks. All participants were requested to maintain their usual diet and lifestyle. The outcome measures were waist circumference (WC), waist-to-hip ratio (WHR), and abdominal computed tomography (CT) of the total fat area (TFA), subcutaneous fat area (SFA), and visceral fat area (VFA). Results : A total of 12 participants divided into the insulated needle group (n = 5) and the control group (n = 7; common needle) were treated for 10 sessions and analyzed per-protocol (PP). WC decreased significantly after 10 sessions in both groups. The WC, TFA, SFA, and VFA of abdominal CT in the insulated needle group decreased more than in the control group; however, there were no significant differences in any parameter between the insulated needle group and the control group. Patients in the insulated needle group were more strongly stimulated with electrical stimulation than patients in the control group. Conclusion : Electroacupuncture using insulated needles in adults with abdominal obesity might be a more effective treatment than common needles. Additional studies are required to compensate for the limitations of this pilot study and to verify the results and efficacy.

• 한국작물학회지
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• 제56권3호
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• pp.199-204
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• 2011

To characterize phytonutrients, the seeds of 12 purple Perilla (Perilla frutescens var. crispa) accessions collected from Korea and Japan were used for quantitative analysis of tocopherols, phytosterols, squalene and fatty acids. The average tocopherol, squalene and phytosterols contents were 12.2 mg $100g^{-1}$, 3.99 mg $100g^{-1}$ and 77.20 mg $100g^{-1}$, respectively. Among 4 tocopherol (T) isomers (${\alpha}$-T, ${\beta}$-T, ${\gamma}$-T, and ${\delta}$-T), ${\gamma}$-T was present in the highest quantity (11.03 mg $100g^{-1}$) with the least variation (CV = 13.7%), while ${\beta}$-T was present in lowest quantity (0.25 mg 1$100g^{-1}$). Compared to campesterol (4.36 mg $100g^{-1}$) and stigmasterol (13.32 mg $100g^{-1}$), ${\beta}$-sitosterol exhibited higher quantity (59.51 mg $100g^{-1}$) with 9.5% of variation. The major fatty acids were unsaturated fatty acids such as linolenic (61.5%), linoleic (17.3%), and oleic (9.9%) acids compared to saturated ones: palmitic (7.6%) and stearic (3.7%) acids. When Korean and Japanese accession were compared, almost no difference in content could be observed, while more variation as evaluated by CV (%) could be observed in Japanese accession in most phytonutrients suggesting wider genetic variation of purple Perilla in Japan. Presence of all above-mentioned phytonutrient compounds strongly suggested health beneficial value of purple Perilla seeds.

• 한국정보통신학회논문지
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• 제18권12호
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• pp.2953-2960
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• 2014

영상인식 분야에서 원형 검출은 가장 많이 사용되는 기술 중의 하나이다. 기존에 제안된 많은 원형 검출방법들은 허프변환에 기초하고 있고, 충분히 강인한 알고리즘을 제공한다. 그러나 허프변환은 해석적 곡선의 각점을 원의 중심 좌표와 반지름으로 대응시키는 과정을 도입함으로써 매우 많은 메모리와 실행시간을 필요로 하고, 또한 가끔씩 부정확한 원을 검출하는 경우가 발생하게 된다. 본 논문에서는 광섬유 연결 종단면 검사에 적합한 최적의 원형 검출방법과 근사화 방법을 제안한다. 제안한 방법은 에지 검출에 기초하여 초기 중심좌표와 반지름을 바탕으로 간단화된 K-means알고리즘을 도입함으로써 차 영역의 넓이가 최소가 되도록 하는 방법으로 원을 근사화 한다. 모의실험을 통하여 제안한 방식은 기존의 오픈라이브러리로 제공되는 OpenCV의 허프변환에 비해 원 검출 및 근사화에 있어 약 67% 정도의 성능 개선이 이루어졌고, 또한, 실행 시간에 있어 약 80% 정도 개선됨을 보인다.