• Journal of IKEEE
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• v.18 no.1
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• pp.106-113
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• 2014

A pedestrian detector can be applied for various purposes such as monitoring or counting the number of people in some place, or detecting the people plunging in the driveway. There was a lot of related research. But, the detection speed is slow in embedded system because of the limited computing power. An algorithm for fast pedestrian detector using HOG in ARM SIMD architecture is presented in this paper. There is a way to quickly remove the background of image and to improve the detection speed using NEON parallel technique. When we tested with INRIA Person Dataset, the proposed pedestrian detector improves the speed by 3.01 times than previous one.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.29 no.11
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• pp.96-101
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• 2015

In recent years, researches regarding optimal placement of CCTV(Closed-circuit Television) cameras via architecture modeling has been conducted. However, for analyzing surveillance coverage through actual human movement, the application of VA(Video Analytics) function of IP(Internet Protocol) cameras has not been studied. This paper compares two methods using data captured from real-world cameras and data acquired from a virtual environment. In using real cameras, we develop GUI(Graphical User Interface) to be used as a logfile which is stored hourly and daily through VA functions and to be used commercially for placement of products inside a shop. The virtual environment was constructed to emulate an real world such as the building structure and the camera with its specifications. Moreover, suitable placement of the camera is done by recognizing obstacles and the number of people counted within the camera's range of view. This research aims to solve time and economic constraints of actual installation of surveillance cameras in real-world environment and to do feasibility study of virtual environment.

• Asian Pacific Journal of Cancer Prevention
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• v.15 no.3
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• pp.1285-1290
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• 2014

The aim was to determine whether ultrasound targeted microbubble destruction (UTMD) promotes dual targeting of HSP72 and HSC70 for therapy of castration-resistant prostate cancer (CRPC), to improve the specific and efficient delivery of siRNA, to induce tumor cell specific apoptosis, and to find new therapeutic targets specific of CRPC.VCaP cells were transfected with siRNA oligonucleotides. HSP70, HSP90 and cleaved caspase-3 expression were determined by real-time quantitative polymerase chain reaction and Western blotting. Apoptosis and transfection efficiency were assessed by flow cytometry. Cell viability assays were used to evaluate safety. We found HSP72, HSC70 and HSP90 expression to be absent or weak in normal prostate epithelial cells (RWPE-1), but uniformly strong in prostate cancerous cells (VCaP). UTMD combined with dual targeting of HSP72 and HSC70 siRNA improve the efficiency of transfection, cell uptake of siRNA, downregulation of HSP70 and HSP90 expression in VCaP cells at the mRNA and protein level, and induction of extensive tumor-specific apoptosis. Cell counting kit-8 assays showed decreased cellular viability in the HSP72/HSC70-siRNA silenced group. These results suggest that the combination of UTMD with dual targeting HSP70 therapy for PCa may be most efficacious, providng a novel, reliable, non-invasive, safe targeted approach to improve the specific and efficient delivery of siRNA, and achieve maximal effects.

• Journal of the Korean Society for Precision Engineering
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• v.24 no.11
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• pp.126-133
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• 2007

Tuberculosis (TB) is a chronic or acute infectious disease which damages more people than any other infectious diseases according to WHO estimates. In this paper, a new automatic detection system of tuberculosis bacilli by using their color information is proposed. Through the deep investigation of color and intensity compositions of tuberculosis images, new pre-processing and segmentation algorithms are suggested. Specific features of bacilli are extracted from the processed images and number counting is done by using domain-specific knowledge rules.

• Proceedings of the IEEK Conference
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• 2008.06a
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• pp.819-820
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• 2008

본 논문에서는 적외선 거리측정 센서를 이용한 보행자 측정 시스템을 제안하였다. 제안한 시스템은 적외선 거리측정 센서의 배열를 이용하여 센서 시스템을 통과하는 보행자의 높이를 영상으로 획득하며, 이러한 센서열을 두 행으로 배치함으로서 보행자의 이동 방향을 판단한다. 실험 결과 제안한 시스템은 약 90% 의 정확도로 보행자 수를 측정할 수 있음을 확인하였다.

• Proceedings of the Korea Information Processing Society Conference
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• 2012.11a
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• pp.652-654
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• 2012

본 논문에서는 다중 심도 카메라 기반의 실시간 피플 카운팅 시스템을 제안 한다. 카메라 영상으로부터 사람을 감지하고 추적하는 시스템 및 그 방법에 관한 것으로, 피플 카운팅 시스템은 쇼핑몰이나 대형건물의 출입구 등과 같은 다양한 환경에 적용될 수 있다. 기존 피플 카운팅 시스템에서의 급격한 조명의 변화나 겹침 현상, 가림 현상에 대한 해결 방법으로, 다중 심도 카메라 환경에서 동일 객체 추적을 위해 RLM(Range Laser Method)를 적용하고, 조명 등 환경 변화에 강인한 배경 제거 및 물체 검출 기법으로 가우시안 혼합 모델(Gaussian Mixture Model)을 적용해 객체인식에 대한 정확도를 높인다. 또한, 객체를 블랍(Blob)으로 지정해 확장 칼만 필터(Extended Kalman Filter, EKF) 방법으로 객체를 추적한다. 본 제안은 피플 카운팅 시스템에의 객체 검출 및 인식에 대한 정확도를 향상시킬 수 있으리라 기대된다.

• Physical Therapy Rehabilitation Science
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• v.6 no.3
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• pp.134-139
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• 2017

Objective: Dual-task interference is defined as decrements in performance observed when people attempt to perform two tasks concurrently, such as a verbal task and walking. The purpose of this study was to investigate the changes of gait ability according to the dual task interference in chronic stroke survivors. Design: Cross-sectional study. Methods: Ten chronic stroke survivors (9 male, 1 female; mean age, 55.30 years; mini mental state examination, 19.60; onset duration, 56.90 months) recruited from the local community participated in this study. Gait ability (velocity, paretic side step, and stride time and length) under the single- and dual-task conditions at a self-selected comfortable walking speed was measured using the motion analysis system. In the dual task conditions, subjects performed three types of cognitive tasks (controlled oral word association test, auditory clock test, and counting backwards) while walking on the track. Results: For velocity, step and stride length, there was a significant decrease in the dual-task walking condition compared to the single walking condition (p<0.05). In particular, higher reduction of walking ability was observed when applying the counting backward task. Conclusions: Our results revealed that the addition of cognitive tasks while walking may lead to decrements of gait ability in stroke survivors. In particular, the difficulty level was the highest for the calculating task. We believe that these results provide basic information for improvements in gait ability and may be useful in gait training to prevent falls after a stroke incident.

• Journal of the Korea Society of Computer and Information
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• v.28 no.12
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• pp.175-182
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• 2023

In this paper, we propose a study compared and analyzed the CPR results and muscle fatigue of the three groups. There is a group that counts loudly when compressing the mannequin's chest (Group A), a group that breathes autonomously without counting (Group B), and a group that breathes abdominally without counting (Group C). Twelve people were assigned to each group, and after performing chest compressions for 5 minutes, the results of CPR were analyzed using a program connected to the mannequin, and the muscle fatigue of the performers was analyzed using wireless electromyography. The most efficient method was found to be group B. If we only look at the speed and depth of compression within the normal range, Group C would be more efficient, but Group B showed significantly lower muscle fatigue, and Group A did not reach the normal range in depth of chest compression and muscle fatigue was the highest. Group B was also found to be the most accurate in hand positioning accuracy, and was also found to be the most efficient in maintaining concentration on chest compressions.

• Research in Community and Public Health Nursing
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• v.22 no.3
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• pp.290-301
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• 2011

Purpose: This study is a descriptive research intended to clarify the medication status of community-dwelling elders and to identify factors affecting their medication adherence. Methods: Data were collected using questionnaires and interviews from 101 subjects who had taken prescribed drugs for at least 7 days sampled among elderly people using home care nursing at a general hospital in Seoul. Results: According to the results of this study, medication adherence measured by pill counting was 88.3% and that measured by self-reporting was 94.6%. There were statistically significant differences in medication adherence according to major disease (p=.006), the number of admissions (p=.032), the number of drugs (p=.051), the frequency of medication (p=.026), and depression (r=-.205). In addition, depression was found to be a significant variable explaining the medication adherence with explanatory power 3.8% (p=.035). Conclusion: The presence of depression affected the elderly subjects' the medication adherence. Therefore, more concern and educational approaches are required to encourage elderly people to comply correctly with medication regimens particularly for elderly patients who have a malignant or long-lasting disease or who have to take multiple drugs or maintain a daily dosing frequency.

• Journal of Agricultural Extension & Community Development
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• v.11 no.1
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• pp.67-81
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• 2004

The objectives of this study were; a) to review the Ilgam Gatgi or a job project of the rural women b) to relate the vocational educational strategies for human resources development and c) to suggest appropriate vocational education programs for rural women in Korea. The study was carried out through literature reviews, and the results of the study were as follows : First, government should provide appropriate information and educational programs to support rural women for facilitating them to have a sound understanding of the Ilgam Gatgi project. Second, government should provide diverse vocational education programs to facilitate participation in the tasks such activities as for upbringing management mindness, counting and marketing abilities. Research and development works should be emphasized to develop further the traditional foods as well as new products. Third, national support activities should be reinforced to let the people recognize the Ilgam Gatgi projects and its products. and governmental supports should be made to establish cyber business transactions system for the products from the Ilgam Gatgi projects. Fourth education for the laws and regulations on manufacturing and marketing of processed foods would be necessary for rural women, since the majority of the products from the Ilgam Gatgi projects were processed foods.