DCT/LDA 기반 얼굴 인식에 관한 연구

김형준,정병희,김회율,Kim Hyoung-Joon,Jung Byunghee,Kim Whoi-Yul 대한전자공학회 2005 電子工學會論文誌-SP (Signal processing) Vol.42 No.6

본 논문에서는 입력된 얼굴 영상으로부터 구한 DCT 계수에 대해 LDA를 적용하는 DCT/LDA를 이용한 얼굴 인식 방법을 제안한다. 제안된 방법은 적은 수의 DCT 계수를 이용하여 입력 영상을 저차원으로 표현함으로써 특징 공간의 차수보다 트레이닝 데이터의 수가 적은 경우 발생하는 LDA의 SSS 문제를 해결한다. DCT는 기저 벡터가 일정하며 PCA와 유사한 에너지 압축 효율을 가지기 때문에 제안된 방법은 기존의 PCA/LDA 방법보다 학습 속도는 빠르면서 실제 얼굴인식 시스템에 적용이 가능한 정도의 얼굴 인식율을 기대할 수 있다. 실험을 통해 제안된 방법이 PCA/LDA 방법과 유사한 얼굴 인식 성능을 보이면서 약 13,000배 빠르게 학습되는 것을 확인하였고, 기존의 Block-DCT/LDA 방법과 유사하거나 향상된 인식 결과를 확인하였다. This paper proposes a method to recognize a face using DCT/LDA where LDA is applied to DCT coefficients of an input face image. In the proposed method, SSS problem of LDA due to less number of training data than the size of feature space can be avoided by expressing an input image in low dimensional space using DCT coefficients. In terms of the recognition rate, both the proposed method and the PCA/LDA method have shown almost equal performance while the training time of the proposed method is much shorter than the other. This is because DCT has the fixed number of basis vectors while the property of energy compaction rate is similar to that of PCA. Although depending on the number of coefficients employed for the recognition, the experimental results show that the performance of the proposed method in terms of recognition rate is very comparable to PCA/LDA method and other DCT/LDA methods, and it can be trained 13,000 times faster than PCA/LDA method.

외식산업의 이벤트 마케팅 전략에 관한 연구

김형준(Kim Hyoung Joon) 한국외식경영학회 2000 외식경영연구 Vol.2 No.2

Holding the event in eating-out industry brings about an effect of corporate profit creation, image improvement and public relations. The present situation is that the event the eating-out industry holds triggers a rise in cost. Therefore, this study aimed th establish the marketing strategy to host the event in eating-out industry. For this purpose, it attempted to inquire into the effect of holding the event by eating-out firms as the theoretical background and investigate the marketing event strategy of eating-out firms. It is thought that further research will have to be made about consumers' response to the marketing strategy of eating-out firms and about the effect of the event on eating-out firms.

U-type 벨로우즈의 수명향상을 위한 설계방안

김형준(Hyoung Jun Kim),박준홍(Joon Hong Park),김현수(Hyun Su Kim),김효겸(Hyo Gyeum Kim),이재섭(Jae Sup Lee) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.11

The mechanical properties of bellows, such as the extensibility and the strength can be changed depending on the shape. For the shipbuilding material, it is desirable that the fatigue life is long due to the elastic property and the reduction of stress in piping system. Nowadays, the domestic production and design of bellows are based on the E.J.M.A. code. However, the design plan is in need because of much errors and lack of detailed analysis. In this study, it is attempted to find out life improvement of U-type bellows using the finite element analysis. Among the design factors, focus on height of convolutions because bellows failure happens first convolution. The results show that as height of first convolutions, the volume and the stress decreases.

노인 여성의 유산소 운동강도별 트레이닝이 신체구성, 건강관련체력 및 삶의 질에 미치는 영향

김형준 ( Hyoung-jun Kim ) , 박준성 ( Joon-sung Park ) 한국스포츠정책과학원(구 한국스포츠개발원) 2020 체육과학연구 Vol.31 No.1

[목적] 본 연구의 목적은 노인 여성을 대상으로 유산소 운동강도별 트레이닝이 신체구성, 건강관련체력, 그리고 삶의 질에 미치는 영향을 규명하는 것이다. [방법] 신체적·정신적인 문제가 없는 65세 이상의 노인여성 48명을 통제집단 (control: CON 집단), 저강도 유산소 운동집단 (low intensity aerobic exercise group: LA 집단), 중강도 유산소 운동집단 (moderate intensity aerobic exercise group: MA 집단), 고강도 유산소 운동집단 (high intensity aerobic exercise: HA 집단) 네 집단으로 12명씩 무선할당 하였다. 유산소 운동 집단의 대상자는 여유심박수(heart rate reserve: HRR)를 적용하여 12주간, 주 3회, 1일 20분간 LA집단 (HRR 40-55%), MA집단 (HRR 55-70%), HA집단 (HRR >70%로 실시하였으며, 통제 집단의 대상자는 동일한 중재 기간 동안 평소의 생활습관을 그대로 유지하도록 하였다. 신체구성, 건강관련체력, 그리고 삶의 질을 측정한 후 반복 이원변량분석을 이용하여 분석하였다. [결과] 본 연구에서 얻은 주요결과는 다음과 같다. 1) LA집단에서는 앉아 윗몸 앞으로 굽히기의 유의한 감소와 EQ-VAS의 유의한 증가가 나타났다. 2) MA집단에서는 체중, BMI, 6분 걷기의 유의한 감소와 악력, EQ-VAS의 유의한 증가가 나타났다. 3) HA집단에서는 체중, BMI, 허리둘레, 앉아 윗몸 앞으로 굽히기, 6분 걷기의 유의한 감소와 악력, 의자에 앉았다 일어서기, 동적평형성, VO₂max의 유의한 증가가 나타났다. 반면, CON집단에서는 모든 변인에서 유의한 변화가 나타나지 않았다. [결론] 본 연구에서 얻은 결과를 종합하면, 유산소 트레이닝은 노인여성의 신체구성, 건강관련체력, 그리고 삶의 질에 효과적인 것으로 나타났다. 특히 고강도 유산소 트레이닝은 건강관련체력에 효과적이며, 저·중강도 유산소 트레이닝은 삶의 질 향상에 효과가 있는 것으로 결론지을 수 있다. [Purpose] The purpose of this study was to investigate the effects of aerobic exercise intensity on body composition, health related fitness, and quality of life in elderly women. [Methods] 48 elderly women over 65 years of age without physical and mental problems were assigned to four groups: control group, low intensity, moderate intensity, and high intensity aerobic training group. The aerobic exercise group applied a heart rate reserve (HRR) to low-intensity group (HRR 40-55%), moderate intensity group (HRR 55-70%), high intensity group (HRR> 70%) for 12 weeks, 3 times a week for 20 minutes a day. Subjects of the control group were to maintain their usual lifestyles during the same intervention period. Body composition, health related fitness, and quality of life were measured and analyzed using repeated two-way ANOVA. [Results] The main results obtained in this study are as follows. 1) There was a significant decrease in sitting forward bending in the low intensity group and a significant increase in EQ-VAS. 2) There was a significant decrease in body weight, BMI, and 6 minutes walking in the moderate intensity group, and a significant increase in grip strength and EQ-VAS. 3) The high intensity group showed a significant decrease in weight, BMI, waist circumference, sitting forward bending, and 6 minutes walking, and a significant increase in grip strength, sit and stand, functional reach, and VO₂max. On the other hand, there was no significant change in all variables in the control group. [Conclusions] In conclusion, aerobic training was found to be effective for body composition, health related fitness and quality of life in elderly women. In particular, it can be concluded that high intensity aerobic training is effective for health related fitness, and low and moderate intensity aerobic exercise is effective for improving quality of life.

웹 2.0 시대 아티스트 음악홍보마케팅 활동이 성인의 대중음악 구매증진에 미치는 영향

김형준(Hyoung Joon Kim),한수정(Su Jeong Han) 한국문화융합학회 2020 문화와 융합 Vol.42 No.12

본 연구는 본 웹 2.0 시대 아티스트 음악홍보마케팅 활동이 성인의 대중음악 구매증진에 나타내는 유의성을 파악하기 위한 서술적 조사연구이다. 본 연구의 대상은 국내 수도권에 거주하며, 온라인 및 SNS를 통해 음악 콘텐츠를 접촉한 경험이 있는 성인을 대상으로 하여 설문을 진행하였다. 설문은 총 250명에게 배부하여, 응답자 246명 중 불성실한 응답을 한 17명을 제외한 229명을 대상으로 분석하였다. 자료의 수집 기간은 2020년 6월 1일∼7월 31일까지이다. 자료 분석은 SPSS 23.0program을 사용하여 기술통계, 빈도분석, 상관분석, 회귀분석을 실시하였다. 연구의 분석결과, SNS 이용시간, 음악 감상 시간, 온라인 및 SNS를 통한 음악 콘텐츠 정보 신뢰도, 온라인 및 SNS를 통한 음악 콘텐츠 이용 시 피드백 활동, 일반인들의 커버음악 이용 시 흥미도, 아티스트의 커버음악 콘텐츠에 참여한 일반인 검색 경험, 음원다운로드와 비교한 음원 스트리밍 서비스의 선호도, 온라인 및 SNS에서 제공되는 음악 콘텐츠의 개선점 유무 등은 대중음악 구매증진에 통계적으로 유의미함을 확인하였다. 이상 웹 2.0 시대의 커버음악 전략이 대중음악 구매증진에 유의함을 확인한 연구의 결과를 토대로 하여 기획사나 개인 아티스트들이 홍보 수단으로서 커버음악을 활용하기를 제안하며, 새로운 홍보 수단 전략의 연구로 더 나은 음악산업이 도래하기를 기대한다. This study is a descriptive research study to understand the significance of the artist s music promotion and marketing activities in the promotion of popular music purchases of adults in this digital era. The subjects of this study were adults in the domestic metropolitan area, who had experience in contacting music content online and through SNS, as a population, and conducted a questionnaire. The questionnaire was distributed to a total of 250 people, and out of 246 respondents, 229 people were analyzed, excluding 17 people who responded insincerity. The data collection period is from June 1st to July 31st, 2020. For data analysis, descriptive statistics, frequency analysis, correlation analysis, and regression analysis were performed using SPSS 23.0 program. Analysis results of the study, SNS usage time, music listening time, reliability of music content information online and through SNS, feedback activity when using music content online and through SNS, interest when using cover music by the general public, and the public who participated in cover music content by artists, it was confirmed that the search experience, the preference of the music streaming service compared to the download of the sound source, and the presence or absence of improvement in the music content provided online and through SNS was statistically significant for the promotion of popular music purchase.Based on the results of research confirming that the cover music strategy in the digital era is significant in promoting popular music purchases, we propose that agencies and individual artists use cover music as a means of promotion.Moreover, it is hoped that new music promotion will be studied, contributing to the development of the music industry.

성선택 방법에 관한 동서양 문헌 고찰

김형준(Hyoung Joon Kim) 대한한방부인과학회 1999 大韓韓方婦人科學會誌 Vol.12 No.2

N/A

외식업의 인적자원관리에 관한 연구

김형준(Kim Hyoung Joon) 한국외식경영학회 2000 외식경영연구 Vol.2 No.1

It is desirable that the management of human resources, as a strategy for enhancing competitiveness, should be the necessity for the foodservice industries to survive in the course of rapid change and continuous development. In other words, management provides the foundation to form human relations, just as the foodservice industry operates with human relations. Therefore, to resolve all the problems that foodservice have face our foodservice should find out new human resource. The control of human resources in foodservice means that it does not only satisfy Foodservice, employees, and guests but improves the personal ability. also it is important for the method of foodservice operation as management. Therefor, foodservice managers have to get good human resources and at the same time, improve the potential ability from them in order to get development for industries and a person. The monitor of human resources in foodservice was focused on production, but recently it has been likely to get closer to human relation. We can achieve the purpose of the industry by satisfying hotel employees and guests and providing a full service for them. foodservice industry must know the fact that the quality of service in human resources should be provided as a critical strategy of management.

Zernike 모멘트와 SVM을 이용한 눈 검출

김형준(Hyoung-Joon Kim),백열민(Yeul-Min Baek),김회율(Whoi-Yul Kim) 대한전자공학회 2007 대한전자공학회 학술대회 Vol.2007 No.7

This paper presents a method to detect eyes in the facial image using Zernike moments and SVM. After detecting eye candidate regions from the facial image, Zernike moments are computed on those regions with moving a 15x15 window. Then, SVM that uses Zernike moments as an input vector detects eyes. In the experimental results, the proposed method shows the eye detection rate of about 90%.

6 · 2 지방선거 분석: 집합자료 결과와 유권자 투표 행태를 중심으로

김형준(Hyoung Joon Kim) 동아시아국제정치학회 2010 국제정치연구 Vol.13 No.2

This study provides an in-depth analysis on the aggregate data results and voters" voting behavior of the 6?2 local election. The basic considered research question is that which factor among the complex set of factors that affect the election is most important in voters" voting decision? In the stable situation where President Lee Myung-bak"s approval rating is nearly 50%, if the retrospective punishment voting was the general trend towards the Lee Myung-bak government in its second year in office during this election, who was the main target of the judgment? Analysis based on the various public opinion polls carried out before and after the elections produced the following results. First, different from the prospective voting behavior shown in Presidential elections, general elections and local elections which have mid-term evaluation features, proved the tendency for retrospective voting. Above all, at the basis of retrospective voting, the factor that the people"s economy worsened worked. Second, the principle of acquiring the moderate in advance which claims that one can win when securing the non-partisans(political moderation) in Korean elections was confirmed through this local election. Third, the principle of disliking particular party, meaning that hatred for a certain political party is a more important decision factor in voting than simply supporting a political party, also had an effect. Fourth, issue voting existed according to each generation. Fifth, unifying the opposition candidate was the driving force for victory by creating a two-party structure of the ruling party vs. opposition party, progressive party vs. conservative party. Solidarity also had its effect in this election- that those who succeed in securing solidarity win, and those who divide fail. Sixth, those in their forties, white-collars, those from the capital area and Chungcheong-Do who had supported the Grand National Party during the last Presidential election left the party and this was followed by the Democratic Party"s victory. Apart from this, the young generation in their twenties and thirties who had strongly supported Lee Myung-bak during the Presidential election shifted to anti-Grand National Party sentiment. Thus, the voting rate increased about 10% points and this was the decisive factor of the Democratic Party"s victory.

엘리트 태권도 선수에 대한 단기간의 재활트레이닝이 근기능 회복과 자각적 통증에 미치는 영향

김형준 ( Kim Hyoung-joon ),손희정 ( Son Hee-jung ) 한국체육대학교 체육과학연구소 2017 스포츠사이언스 Vol.35 No.1

The purpose of this study was to examine the effect of rehabilitation exercise training (4 times/d) on pain scale and isokinetic muscular functions. 6 elite Taekwondo athletes with knee injury were participated in this study and we measured pain scale and isokinetic test. Subjects performed 4-weeks rehabilitation exercise (isotonic and isokinetic). After the 4 weeks rehabilitation exercise, pain scale was decreased (p<.001, 54%) and most of the isokinetic variables improved(p<.05). The peak torque in extensor and flexor muscle at 60°/sec and 180°/sec were increased (p<.05). The total work done as index for muscular endurance was increased in extensor and flexor muscle at 240°/sec(p<.01). Therefore, rehabilitation exercise is thought to be beneficial for elite Taekwondo athletes with knee injury. These results suggest the possibility of effect of rehabilitation exercise training (isotonic and isokinetic) on the knee injury theraphy.