• 제어로봇시스템학회:학술대회논문집
• /
• 제어로봇시스템학회 2005년도 ICCAS
• /
• pp.1202-1205
• /
• 2005

This paper describes a method for vision-based person identification that can detect, track, and recognize person from video using multiple cues: height and dressing colors. The method does not require constrained target's pose or fully frontal face image to identify the person. First, the system, which is connected to a pan-tilt-zoom camera, detects target using motion detection and human cardboard model. The system keeps tracking the moving target while it is trying to identify whether it is a human and identify who it is among the registered persons in the database. To segment the moving target from the background scene, we employ a version of background subtraction technique and some spatial filtering. Once the target is segmented, we then align the target with the generic human cardboard model to verify whether the detected target is a human. If the target is identified as a human, the card board model is also used to segment the body parts to obtain some salient features such as head, torso, and legs. The whole body silhouette is also analyzed to obtain the target's shape information such as height and slimness. We then use these multiple cues (at present, we uses shirt color, trousers color, and body height) to recognize the target using a supervised self-organization process. We preliminary tested the system on a set of 5 subjects with multiple clothes. The recognition rate is 100% if the person is wearing the clothes that were learned before. In case a person wears new dresses the system fail to identify. This means height is not enough to classify persons. We plan to extend the work by adding more cues such as skin color, and face recognition by utilizing the zoom capability of the camera to obtain high resolution view of face; then, evaluate the system with more subjects.

• 한국소음진동공학회논문집
• /
• 제21권7호
• /
• pp.615-621
• /
• 2011

There are hundreds of thousands call center workers wearing acoustic device. However, researches and noise exposure measurements on the noise transmitted from acoustic devices have seldom been performed due to the difficulty of measurement and to the absence of the measuring method in Korea. The aim of this study is to set up management measures to protect hearing loss on the call operator by acquiring measurement data of noise transmitted from the headset. Noise exposure measurements of 17 operators were performed in 7 call centers and head and Torso simulator method in compliance with the ISO standard 11904-2 was used for the measurement of noise transmitted from the headset. Sound pressure levels(SPL) transmitted from the headset were 73.2~86 dB(A). The operator exposed to the highest SPL set up his volume control at 9 which was the highest volume level. The volume control level, adjustable from 1 to 9, could be identified 12 out of 17 operators and the range of volume levels was 4.5~9. As a result of pearson correlation analysis, the correlation between volume level and SPL transmitted from the headset showed high relation as significance at the 0.672 level(p<0.05). To protect hearing loss of call center operators, it is more practical and effective measure to limit the volume level below the noise exposure level, i.e. 85 dB(A), rather than to carry out noise monitoring considering cost-effective aspect.

• 한국소음진동공학회:학술대회논문집
• /
• 한국소음진동공학회 2011년도 춘계학술대회 논문집
• /
• pp.808-813
• /
• 2011

There are hundreds of thousands call center workers wearing acoustic device. However, researches and noise exposure measurements on the noise transmitted from acoustic devices have seldom been performed due to the difficulty of measurement and to the absence of the measuring method in Korea. The aim of this study is to set up management measures to protect hearing loss on the call operator by acquiring measurement data of noise transmitted from the headset Noise exposure measurements of 17 operators were performed in 7 call centers and Head and Torso Simulator method in compliance with the ISO Standard 11904-2 was used for the measurement of noise transmitted from the headset Sound pressure levels(SPL) transmitted from the headset were 73.2~86 dB(A). The operator exposed to the highest SPL set up his volume control at 9 which was the highest volume level. The volume control level, adjustable from 1 to 9, could be identified 12 out of 17 operators and the range of volume levels was 4.5~9. As a result of Pearson Correlation Analysis, the correlation between volume level and SPL transmitted from the headset showed high relation as significance at the 0.672 level(p<0.05). To protect hearing loss of call center operators, it is more practical and effective measure to limit the volume level below the noise exposure level, i.e. 85 dB(A), rather than to carry out noise monitoring considering cost-effective aspect.

• 대한인간공학회지
• /
• 제31권1호
• /
• pp.237-245
• /
• 2012

Objective: The aim of the study is to analyze female adult's body shape characteristics and to provide the basic information for clothing manufacturing. Background: The comparative study among the age groups is very fundamental to understand the body characteristics of each subjects group. Therefore, comparison of body measurements in age groups was applied in this study. Method: The study was fulfilled by the comparison between the data of the $5^{th}$ Anthropometry of Size Korea (2004) and the $6^{th}$ Anthropometry of Size Korea(2010). The subjects were 2,213 female adults aged 20~59 of the 5th Size Korea anthropometric survey and 2,025 female adults aged 20~59 of the 6th Size Korea anthropometric survey. Results: The differences indicated the decreased values in widths, depths, girths regarding the torso region and BMI. "Head height to Stature ratio" decreased significantly in the 6th data, on the other hand, "Crotch height to Stature ratio" increased in the 6th data. Through the distribution characteristic of the age groups by Stature groups, it was convinced that 160cm stature group is the most frequent among all age groups of the 6th Size Korea. Conclusion: As a summary, the meaningful differences were showed between the 5th anthropometric data and the 6th data. According to the 6th Size Korea, the distribution tendency of obesity is very similar to the 5th Size Korea data. But the percentage of obese women declined significantly. Application: These findings from the study can be utilized women's wear design and construction that reflect body characteristics.

• 한국콘텐츠학회논문지
• /
• 제20권7호
• /
• pp.47-55
• /
• 2020

스마트 기기 사용의 증가와 함께 현대인들의 거북목 증후군 발병률이 증가했다. 거북목 증후군은 목의 앞 근육이 길어지고, 위쪽 근육이 짧아져 몸통에 비해 머리가 앞으로 나와 있는 자세이며, 수술이나 약물치료보다 평소의 자세 습관을 고치는 방법이 효과적이다. 따라서 본 논문에서는 실시간으로 거북목 증후군을 유발할 수 있는 자세를 감지하고 경고하는 시스템을 제안한다. 올바른 자세와 거북목 자세의 이미지 데이터들을 수집하여 합성곱 신경망기반의 학습모델을 만든다. 웹캠만을 이용하여 카메라에 들어오는 앉은 자세를 학습모델로 실시간 검증하고, 거북목 자세일 경우 경고음을 발생하여 바른 자세를 앉도록 유도한다. 이 시스템은 평소 자세 습관을 교정하도록 유도하여 거북목증후군을 치료하고 목 디스크와 같은 더 심각한 질병을 예방할 수 있다.

• Nuclear Medicine and Molecular Imaging
• /
• 제42권1호
• /
• pp.39-43
• /
• 2008

목적: 이 연구에서는 다발성 골수종에서 두개골과 중간 허벅지 이하 하지부를 포함한 전신 $^{18}F$-FDG PET/CT 영상 획득의 필요여부를 알아보았다. 대상 및 방법: 총 30명(평균나이: $59.4{\pm}11.7$세, 남/여 17/13명)의 환자를 대상으로 두개골과 중간 허벅지 이하 하지부를 포함한 전신 $^{18}F$-FDG PET/CT 영상을 총 45개 촬영하였다. PET 영상에서 두개골 또는 중간 허벅지 이하 하지부에 주변보다 비정상적인 국소 섭취증가를 보이는 병변 유무에 따라 두 그룹으로 나누어 나이, 성별, 병기 등의 임상소견 차이를 비교해보았다. 결과: 총 45개의 전신 PET/CT 영상에서 두개골 또는 중간 허벅지 이하 하지부 병변은 14명 환자(46.7%)의 22개 스캔(48.9%)에서 발견되었다. 그 중 두개골 병변은 중간 허벅지 이하 하지부 병변에 비해 유의하게 흔히 관찰되었다(86.4% 대 40.9%, p<0.005). 이 두 환자군 사이에 종양의 양을 반영하는 혈색소 수치, 혈청 칼슘 수치, 혈청 면역글로불린 수치, 뇨 면역글로불린 수치, 혈청 크레아티닌 수치에 유의한 차이는 없었다. 두개골 또는 중간 허벅지 이하 하지에 비정상적인 국소 FDG 섭취증가를 보인 22개의 PET 영상에서 두개골 또는 중간 허벅지 이하 하지 병변으로 인하여 Durie/Salmon plus 병기가 상승된 경우는 단 1개(4.5%, p>0.05)였다. 결론: FET 영상에서 두개골 또는 중간 허벅지 이하 하지 병변은 다발성 골수종에 있어 종양의 양 및 병기 평가에 유의한 영향을 주지 못했다. 따라서 다발성 골수종에서 머리와 다리를 포함한 전신영상을 꼭 촬영할 필요는 없으며, 머리를 포함한 몸통 영상획득 방법이 가장 적절할 것으로 보인다.

• 한국감성과학회:학술대회논문집
• /
• 한국감성과학회 1998년도 춘계학술발표 논문집
• /
• pp.255-263
• /
• 1998

Dust-free garment prevents contamination which otherwise is caused by skin and clothes to protect from dust or dirt. Therefore, it requires high performance and should function as a working clothes. Clothes are a medium between human and thermal environmental system, and it is required to study human enviroment to ensure comfortableness of clothes and to satisfactorily go along with enviroment .This study investigates the physical and physiological features of dust-free garment used in the clean room at a semiconductor factory in oredr to scientifically clarify what the dust-free garmint is as well as to contribute to the design and development of high performance material and clothes. Three kinds of dust-free fabrics (DFG-I, DFG-II, DFG-III) which are being developed by a local company are used to manufacture dust-free garment. These dust-free garments are dressed and tested in such an enviroment as similar to semiconmemts with temperature at 23${\pm}$1$^{\circ}C$ and humidity at 50${\pm}$5%RH in order to investigate the thermo physiological and psychological features of human body. The results of this study are as follows. The results of this study are as follows. 1.The mean skin temperature was significantly different among the clothes, subjects and experimental time. Temperature tends to rise from the time of exercising load. Continuous motion coupled sealed clothes prevents heat transmittance, and temperature rises in the order of DFG-l, DFG-ll and DFG-lll as time course. 2.As for the skin temperature by local timperature is minimun on the head and torso and increares remarkably at the terminal part of human body. 3. As for the body mass loss was significantly higher in DFG-lll than DFG-l and DFG-ll. 4. Though there is no significant difference in the temperature within clothes among the kind of clothes temperature is 1$^{\circ}C$ higher in the back. Temperature within all the dust-free garments 29.7$^{\circ}C$ in the back and 31.3$^{\circ}C$ in the chest which belong to the comfort zone(31-33$^{\circ}C$). The relative humidity is 39.7%RH in the chest and 33.8%RH in the back which is slightly below the comfort zone(40-60%RH) 5. The thermal sensation belong to the comfort zone regardless of the kinds of clothes. The subjects feels a slight fatigue as times goes. As for the subjective sense of subjects the mean skin temperature as well as temperature and humidity within clothes show similar tendency. This means that they relate with each other.

• 복식
• /
• 제13권
• /
• pp.21-37
• /
• 1989

In May 1987, 11 clay icons and other stone products were excavated in an abandoned ancient tomb which was located in 541-1 Hwangsung-dong, Kyungju. 6 clay figures of them were depicted realistically man's features and postures, costume at that time that they gave a lot of significance to the fields of Korean Costume's Academic Society. The main purpose of this thesis is to study the background of costume history when it was made and its formal characteristics with the study of those 6 clay figures. Shilla accepted the customs and attires of Sui and T'ang by means of frequent in coming and out going Chinese envoy as well as Shilla's envoy, monks, hostages, and students in China. From that period, the diversity of Shilla's costume began to develop by introducing Tang's style into Shilla's costume. Crested hat of men's clothing of the clay figures in Hwangsung- Dong is Bokdu Men's figure II wore Bokdu which Hugak is attached to Byunhyung. The garment is a Po and it is a tight sleeve and silhouette's Banryungpo. The horizontal line of hemline of men's figure 1 can be presumed by expression of Ran though it is not as accurate as the clay figues in Yongg-ang-Dong. As for torso part 1, it can not be known the style of the crested hat because the head part was damaged, but it were shoes, belt and common sleeve, Banryungpo on tight sleeve shirt and tight trouser. The hair style of the women's clothing in Hwangsung-dong clay figure is Bukkye peculiar to Korea. The costume was slim silhouette that people wore tight sleeve and short blouse and long skirt and belted on their bosom which dresses style was in vogue from late Sui dynasty to the early years of the Tang period. The silh ouette of slim silhouette's high waist which can be seen in the women's dresses is mainly worn by Chinese and affected Shilla's costume. Therefore the dresses style of the clay figures in Hwagsung-Dong, it is considered it is a dresses style of tight sleeves and slim silhouette together with the adaptation and abolition of foreign elements on the basis of Shilla's own elements like Bukkye hair style and tight sleeve and silhouette. The style of Yonggang-Dong's clay figures expresses spherical gei and common sleeve, loose silhouette of flourishing Tang's costumes planly whereas the style of Hwangsung-Dong's clay costumes expresses refined spirit of the Shilla(Shillaism) though it is extremly simple.

• 한국음향학회지
• /
• 제28권2호
• /
• pp.96-106
• /
• 2009

본 논문에서는 헤드폰의 음향적 특성과 주관적인 선호도간의 상관관계를 분석하고, 이로부터 음향적 특성을 이용한 주관적 선호도의 예측 가능성을 알아보았다. 헤드폰의 음향적 특성으로 좌, 우 채널에 대한 고조파 왜곡, 주파수 특성의 분산, 그리고 충격파 응답의 양이 상관 계수가 사용되었다. 이들 특성은 머리 모형을 이용하여 잡음이 없는 무향 환경에서 측정되었다. 주관적인 선호도는 음량감, 선명감, 공간감, 포만감, 전체적인 느낌의 5개 항목으로 점수화하여 나타내었다. 선호도 평가에는 음악 청취에 경험이 많은 12명의 청취자가 참여하였으며 샘플 음악은 가요, 팝, 경음악, 음성, 클래식의 5 종류의 음악이 사용되었다. 실험에 사용된 헤드폰은 밀폐형 4종, 개방형 2종 귓속 삽입형 2종 등 총 8개가 사용되었다. 주관적인 선호도는 이원 배치 법을 이용하여 주관적 선호도에 영향을 끼치는 요인을 분석하였으며 음향적 특성과 주관적인 선호도 점수 간의 상관 계수를 구하였다. 실험 결과 오른쪽 채널에서 측정된 주파수 크기 응답의 분산이 주관적인 선호도와 가장 높은 상관 계수를 갖는 것으로 나타났으며, 충격파 응답의 양이 상관 계수는 거의 상관 관계가 없는 것으로 나타났다.

• 한국어류학회지
• /
• 제36권2호
• /
• pp.120-128
• /
• 2024

본 연구에서는 서해안 대호만에 서식하는 빙어를 대상으로 초기생활사 특징을 규명하고자 실시하였다. 빙어의 난은 원형으로 물에 가라앉는 성질을 가진 점착란이었다. 성숙란의 크기는 0.52~0.66 (평균 0.59±0.03, n=30) mm였다. 부화 시간은 수온 22~23℃에서 140시간이 소요되었다. 부화 직후 자어는 전장 4.78~5.60 (평균 5.25±0.26, n=30) mm로 입과 항문이 완전히 열리지 않았다. 부화 후 7일째 전기자어는 전장 5.91~6.64 (6.32±0.21) mm로 입과 항문이 열렸고, 먹이활동을 시작하였다. 부화 후 25일째 중기자어는 전장 9.70~12.3(10.2±0.63) mm로 꼬리 끝 척추말단 부분이 위쪽으로 휘어지기 시작하였다. 부화 후 42일째 후기자어는 전장 14.1~18.8(16.9±1.44) mm로 꼬리 끝 척추말단 부분이 45°로 완전히 휘어졌다. 부화 후 56일째 전장 16.3~21.2(20.0±1.14) mm로 등 지느러미 10개, 뒷지느러미 16개, 배지느러미 7개, 꼬리지느러미 19개로 정수에 달하였다. 연구결과 부화 자어 시기 가슴지느러미 아래 반점모양의 흑색소포가 있는 점, 전장 대비 난황의 위치가 다른 점, 후기자어 시기에는 미병부 등 쪽과 몸통 아래쪽에 흑색소포가 침착된 점, 머리와 등지느러미 시작점 사이 몸통에 흑색소포가 없는 점에서 구분되었다. 치어기에는 몸통 등 쪽에서 미병부까지 흑색소포가 1열로 침착된 점에서 근연종들과 구분할 수 있었다.