• Title/Summary/Keyword: human movement

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Measuring Tensions of Character Motions based on LMA (LMA를 기반으로 한 캐릭터 동작의 긴장도 측정)

  • Kwak, Chang-Sub;Kwon, Ji-Yong;Lee, In-Kwon
    • Journal of KIISE:Computing Practices and Letters
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    • v.14 no.5
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    • pp.532-536
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    • 2008
  • In this paper, we propose the method to measure tensions of character motions, using LMA (Laban Movement Analysis). Using tension values, we tan take advantage of them as a standard for synchronization of motion and BGM(Back Ground Music). In LMA, a motion is divided into 4 space-time factors which are called Efforts, and each Effort has two bases opposed to each other. We can analyze the motion by justifying which basis is stronger than the other in each Effort of motion. To measure quantitatively tension values, we propose some equations based on kinematics and dynamics. Then we can measure the tension value by the weighted sum of values calculated from those equations. Each weight can be determined by the optimization process which tries to minimize the difference between the calculated tension value and human's decision. The experimental result shows that the in creasing order of the motion tension value is similar to that of the tension score given by human.

Tendencies of anti-fashion in Kinfolk magazine (Kinfolk 매거진에 나타난 안티패션(anti-fashion) 경향)

  • Lim, Ahreum;Yim, Eunhyuk
    • The Research Journal of the Costume Culture
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    • v.25 no.5
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    • pp.629-647
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    • 2017
  • As fashion has concentrated increasingly on inner values, it has become more directly connected with human life and society. This study analyzed anti-fashion, a movement that resists mainstream society and culture, which it views as causing inner conflicts such as competition, mammonism, consumerism, and egoism by fixating solely on the pursuit of growth and improvement. The study examined Kinfolk, an independent lifestyle magazine, to determine the essential values and principles that comprise this movement's refusal of mainstream modern society. The analysis of Kinfolk identified the following characteristics of, the Kinfolk lifestyle: essentialism, nature-friendliness, retro sensibilities, socio-ethical awareness, and diversity. Essentialism refers to the pursuit of essence, brevity, innovation based on tradition and slow life. Nature-friendliness involves communion with nature and humanity, animal-friendliness, de-industrialization, de-urbanization, and nomadic behavior. The components of the retro sensibility include nostalgia, and interests in vintage culture, and handcrafts. Diversity encompasses commonplaceness, various subcultures, agelessness, genderlessness, acceptance of other cultures, and new understanding. The analysis identified the tendencies of anti-fashion in Kinfolk magazine as simplicity, naturalism, resistance to novelty, ethics, and inclusiveness. Anti-fashion pursues the essential values of human life that have been lost or forgotten in modern society. It is important to pay constant attention to the values of minority, non-mainstream and indie cultures that represent anti-fashion. It exerts considerable influence and has great potential as an area for the development of various style-based paradigms rather than as a single fashion direction.

Analysis on the Flexibility and Muscle Function in Young Adults Using Indoor Horseback Riding Machine (실내용 승마운동기를 이용한 젊은 성인남녀의 유연성 및 근기능 분석)

  • Kang, S.R.;Kim, U.R.;Jeong, G.Y.;Moon, D.A.;Kwon, T.K.
    • Journal of rehabilitation welfare engineering & assistive technology
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    • v.7 no.1
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    • pp.1-11
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    • 2013
  • The purpose of this study was to investigate the analysis on exercise effect of basic physical fitness, flexibility and muscle function using electric horseback riding machine. Subjects were ten males and ten females who were 20th aged young adults. They exercised every 45-min a day. Horse riding exercise has progressed 3-days a week till 4-weeks. We measured contents of basic physical fitness, flexibility and joint torque in lumbar. The results showed that contents of human body effect were higher than before exercise. We thought that stimulated by 3-D movement in horseback riding exercise instrument could be activated joints and muscles with the unused generally This continuous movement could reduce tonus of muscle and relax stiff muscles. horseback riding have significant effect with whole body exercise, also it could provide efficient exercise for the elder and disabled person.

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A Study on the Analysis of Ciliary Beat Frequency in Human Respiratory Tract n Vivo (레이저 산란 기법을 이용한 인체 기도 내 섬모 운동 신호의 분석에 관한 연구)

  • 이원진;이재서;이재서;이철희;권태영
    • Journal of Biomedical Engineering Research
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    • v.21 no.4
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    • pp.339-344
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    • 2000
  • The mucociliary system is one of the most important airway defense mechanisms in human body and impairment of ciliary movement results in various diseases in respiratory tract. In this study, we have developed a system that can measure ciliary movement in vivo and quantified ciliary beat frequency (CBF) through autoregressive (AR) power spectrum. To measure the frequency in vivo, we applied a photoelectric method that was composed of a laser light and a fiber optic probe. Scattered signals are transferred to a PC in which they are displayed on the monitor and its CBF is determined by the AR method in were acquired. For 8 normal subjects, the analyzed CBFs ranged from 5 to 10Hz and its mean was 7.3${\pm}$1.1Hz. This result showed similar aspects to the reported results of CBFs to data. We expect that this result will be applied in various clinical studies such as analysis of CBF changes by drugs or by diseaes.

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Evaluation of the Dose According to the Movement of Breath During Field-in-Field Technique Treatment of Breast Cancer Patients (유방암 환자의 Field-in-Field Technique 치료 시 호흡의 움직임에 따른 선량 평가)

  • Kwon, Kyung-Tae
    • Journal of radiological science and technology
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    • v.41 no.6
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    • pp.561-566
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    • 2018
  • Field-in-Field Technique is applied to the radiation therapy of breast cancer patients, and it is possible to compensate the difference in breast thickness and deliver uniform dose in the breast. However, there are several fields in the treatment field that result in a more complex dose delivery than a single field dose delivery. If the patient's respiration is irregular during the delivery of the dose by several fields and the change of respiration occurs, the dose distribution in the breast changes. Therefore, based on the computed tomography images of breast cancer patients, a human model was created by using a 3D printer (Builder Extreme 1000) to describe the volume in the same manner. A computerized tomography (CT) of the human body model was performed and a treatment plan of 260 cGy / fx was established using a 6-MV field-in-field technique using a computerized treatment planning system (Eclipse 13.6, Varian, USA). The distribution of the dose in the breast according to the change of the respiration was measured using a moving phantom at 0.1 cm, 0.3 cm, 0.5 cm amplitude, using a MOSOXIDE Silicon Field Effect Transistor (MOSFET, Best Medical, Canada) Were measured and compared. The distribution of dose in the breast according to the change of respiration showed similar value within ${\pm}2%$ in the movement up to 0.3 cm compared to the treatment plan. In this experiment, we found that the dose distribution in the breast due to the change of respiration when the change of respiration was increased was not much different from the treatment plan.

Effect of Core Stabilization Intervention Program on Erector Spinae Contractile Properties and Isokinetic Muscle Function in Adults with Sedentary Lifestyle Patterns (코어안정화 운동이 좌식생활 패턴 성인의 척추기립근 수축 속성 및 체간 등속성 근기능에 미치는 영향)

  • Lee, Hyungwoo;An, Seungho;Jeon, Kyoungkyu
    • Korean Journal of Applied Biomechanics
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    • v.32 no.3
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    • pp.103-110
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    • 2022
  • Objective: The aim of this study was to investigate effect of core stabilization exercises on the erector spinae contractile properties and trunk isokinetic muscle function of middle age with low physical activity and sedentary lifestyle. Method: Twenty (female: n=10, male: n=10) middle-age subjects (age: 37.25 ± 6.08 years, height: 168.01 ± 6.84 cm, weight: 71.37 ± 11.75 kg) participated in this study. Tensiomyography was measured on the erector spinae, and the isokinetic trunk muscle function test was measured at an angular velocity of 60 °/s and 90 °/s. All subjects performed the core stabilization exercises for 60 min per day, 3 times a week, for 7 weeks. A paired t-test was performed with a significance level of 0.05. Results: Tensiomyography of the erector spinae revealed a significant post-exercise increase in the maximum radial displacement (p < .05) and velocity of contraction (p < .05), however, there wasn't a significant post-exercise change in the contraction time. Additionally, the isokinetic muscle function test of the trunk revealed a significant post-exercise increase in trunk extensor relative strength (p < .05) and strength ratio (p < .05). Conclusion: Our results indicated that core stabilization exercises reduced erector spinae muscle stiffness, increased the velocity of erector spinae contraction. Additionally, data showed the improvement in the trunk extensor strength help induce a more balanced development in trunk muscle.

Performance Comparison for Exercise Motion classification using Deep Learing-based OpenPose (OpenPose기반 딥러닝을 이용한 운동동작분류 성능 비교)

  • Nam Rye Son;Min A Jung
    • Smart Media Journal
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    • v.12 no.7
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    • pp.59-67
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    • 2023
  • Recently, research on behavior analysis tracking human posture and movement has been actively conducted. In particular, OpenPose, an open-source software developed by CMU in 2017, is a representative method for estimating human appearance and behavior. OpenPose can detect and estimate various body parts of a person, such as height, face, and hands in real-time, making it applicable to various fields such as smart healthcare, exercise training, security systems, and medical fields. In this paper, we propose a method for classifying four exercise movements - Squat, Walk, Wave, and Fall-down - which are most commonly performed by users in the gym, using OpenPose-based deep learning models, DNN and CNN. The training data is collected by capturing the user's movements through recorded videos and real-time camera captures. The collected dataset undergoes preprocessing using OpenPose. The preprocessed dataset is then used to train the proposed DNN and CNN models for exercise movement classification. The performance errors of the proposed models are evaluated using MSE, RMSE, and MAE. The performance evaluation results showed that the proposed DNN model outperformed the proposed CNN model.

Design of UWB Antenna for the External Receiver of Capsule Endoscopy (캡슐 내시경의 외부 수신기용 UWB 안테나 설계)

  • Kim Hong-Seok;Oh Min-Seok;Cheon Chang-Yul
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.16 no.8 s.99
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    • pp.790-796
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    • 2005
  • In order to accomplish a wireless communication of capsule endoscopy, an environment study in the human body and receiving antenna design have been performed. The proposed antenna is the loop antenna designed to minimize the propagation loss in multi-loss layer such as the human body and utilize the magnetic field. Considering the propagation loss in the human body, the frequency range is from 400 MHz to 500 MHz. Acorrrding to the FCC regulations, the permittivity and conductivity for each human tissue were extracted. We set up an equivalent model and make an aqueous solution which is replaced with the human body. Due to movement of capsule in the human body which propagation loss is extremly severe, an array antenna is required. Irrespective of the location of transmission antenna transmitting a signal of 1 mW, we confirme what it is possible for the enough signal detection as the average signal level of array antenna is -60 dBm.

Effects of nitric oxide on the proliferation and differentiation of human periodontal ligament cells (산화질소가 인간 치주인대세포의 증식과 분화에 미치는 영향)

  • Choi, Sun-Young;Cho, Jin-Hyoung;Kang, Kyung-Hwa
    • The korean journal of orthodontics
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    • v.36 no.6
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    • pp.465-473
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    • 2006
  • Objective: This study evaluated the effects of nitric oxide (NO) on the proliferation and differentiation of human periodontal ligament cells involved in orthodontic tooth movement. Methods: A range of concentrations of sodium nitroprusside (SNP), a NO donor, were administered to samples of human periodontal ligament cells, followed by measurement of cell viability, alkaline phosphatase (ALP) activity, and expression of osteonectin and bone sialoprotein. Results: Cell viability, ALP activity and the expression of osteonectin and bone sialoprotein were increased in human periodontal ligament cells treated with SNP concentrations of < 0.2 mM compared with controls, but were decreased with SNP concentrations of > 1.0 mM. Conclusion: NO has a biphasic effect on proliferation and differentiation in human periodontal ligament cells, with a stimulatory effect at low concentrations and an inhibitory effect at high concentrations.

Spatio-temporal Semantic Features for Human Action Recognition

  • Liu, Jia;Wang, Xiaonian;Li, Tianyu;Yang, Jie
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.6 no.10
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    • pp.2632-2649
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    • 2012
  • Most approaches to human action recognition is limited due to the use of simple action datasets under controlled environments or focus on excessively localized features without sufficiently exploring the spatio-temporal information. This paper proposed a framework for recognizing realistic human actions. Specifically, a new action representation is proposed based on computing a rich set of descriptors from keypoint trajectories. To obtain efficient and compact representations for actions, we develop a feature fusion method to combine spatial-temporal local motion descriptors by the movement of the camera which is detected by the distribution of spatio-temporal interest points in the clips. A new topic model called Markov Semantic Model is proposed for semantic feature selection which relies on the different kinds of dependencies between words produced by "syntactic " and "semantic" constraints. The informative features are selected collaboratively based on the different types of dependencies between words produced by short range and long range constraints. Building on the nonlinear SVMs, we validate this proposed hierarchical framework on several realistic action datasets.