• Title, Summary, Keyword: Motion patterns

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Identification of user's Motion Patterns using Motion Capture System

  • Jung, Kwang Tae;Lee, Jaein
    • Journal of the Ergonomics Society of Korea
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    • v.33 no.6
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    • pp.453-463
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    • 2014
  • Objective:The purpose of this study is to identify motion patterns for cellular phone and propose a method to identify motion patterns using a motion capture system. Background: In a smart device, the introduction of tangible interaction that can provide new experience to user plays an important role for improving user's emotional satisfaction. Firstly, user's motion patterns have to be identified to provide an interaction type using user's gesture or motion. Method: In this study, a method to identify motion patterns using a motion capture system and user's motion patterns for using cellular phone was studied. Twenty-two subjects participated in this study. User's motion patterns were identified through motion analysis. Results: Typical motion patterns for shaking, shaking left and right, shaking up and down, and turning for using cellular phone were identified. Velocity and acceleration for each typical motion pattern were identified, too. Conclusion: A motion capture system could be effectively used to identify user's motion patterns for using cellular phone. Application: Typical motion patterns can be used to develop a tangible user interface for handheld device such as smart phone and a method to identify motion patterns using motion analysis can be applied in motion patterns identification of smart device.

The User Motion Pattern Control System for The Simulated Vehicle

  • Kim, Tae-Wan;Lee, Dong-Myung
    • Journal of Engineering Education Research
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    • v.15 no.4
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    • pp.48-52
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    • 2012
  • The purpose of this paper is to design and implement the user motion pattern control system for the simulated vehicle. After analyzing the user motion patterns in the system, the patterns are used to control the moving direction of the simulated vehicle such as forward, backward, turn right, turn left etc. The patterns in the system around are sent to the simulated vehicle in real time. In order to execute the suggested user motion pattern control system, the Kinect is used for executing the system. The Kinect recognizes the specified user motion patterns and it transmits the data to the user motion pattern control system. There are nine kinds of the user motion patterns in the system for controlling the simulated vehicle. In addition to this, some sensors are used to detect the condition of the simulated vehicle. GPS is also used to estimate the current location of the simulated vehicle and to obtain the driving information.

Evaluation of Appearance and Optimal for Motion According to the Back Waist Point of Slacks Pattern (슬랙스 패턴의 허리뒤점 설계에 따른 외관 및 동작적합성 평가)

  • Kwon, Sookhee;Hong, Jiun
    • Journal of the Korean Society of Clothing and Textiles
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    • v.37 no.6
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    • pp.750-763
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    • 2013
  • This research suggests pattern design methods for motion through an evaluation of the appearance and motion of three existing kinds of original patterns (K type, N type, and L type) and modified patterns designed by the researcher. The results of the study are as follows. First, the evaluation of appearances showed that the modified patterns of a standing posture received a higher evaluation compared to the original patterns only in N type and in a sitting posture. In addition, the degree of lowering or a natural feel by the pulling of the slacks waist belt in a sitting posture received a higher evaluation than the original patterns. Second, the evaluation of motions showed that modified patterns received a higher evaluation than the original patterns in almost all items. Per each pattern, it showed meaningful differences in questions asking about the degree of comfort as the whole in N type in crouching motions. The L type showed low scores as a whole (both in original patterns and modified patterns) and the K type showed meaningful differences in questions asking about the degree of comfort of the crista iliaca and groin region in the motion of walking at a normal walking pace, ascending stairs and bending the waist 90 degree to the front. Third, the measuring distance the between back waist point of the body and the back waist point of original patterns and modified patterns during motions showed that the modified patterns of all three patterns (N type, L type, and K type) showed less lowering compared to the original forms in the whole pattern as well as individual patterns. The design method of back waist point developed in this research can be regarded as a design method appropriate for motions.

Motion Analysis at Proprioceptive Neuromuscular Facilitation Patterns (고유수용성 신경근 촉진법 패턴의 운동 분석)

  • Bae Sung-Soo;Chung Hyung-Kuk;Kim Ho-Bong
    • The Journal of Korean Physical Therapy
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    • v.10 no.1
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    • pp.213-221
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    • 1998
  • The purpose of this study was a motion analysis of proprioceptive neuromuscular facilitation patterns which is scapular and pelvis patterns, upper extremity patterns, lower extremity patterns, trunk patterns. The patterns combine motion in sagittal plane for flextion and extension, coronal or frontal plane for abduction and adduction, transverse plane for rotation. The patterns composed of mass movement pattern of the limbs and trunk muscles. Every pattern can change by changing the activity of the middle joint in the extremity patterns and changing the patient's positions.

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Development of Sleeve Patterns of Structural Firefighting Protective Clothing using by 3D Body Shape and 3D Motion Analysis (3차원 인체형상과 3차원 동작분석에 의한 방화복 소매패턴 개발)

  • Han, Sul-Ah;Nam, Yun-Ja;Yoon, Hye-Jun;Lee, Sang-Hee;Kim, Hyun-Joo
    • Fashion & Textile Research Journal
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    • v.14 no.1
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    • pp.109-121
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    • 2012
  • This study aims at developing ergonomics patterns for the sleeve of structural firefighting protective clothing through 3D motion analysis in order to ensure efficiency and safety of firefighters who are exposed to harmful environment at work. A new research pattern was developed by applying the total results of 3D motion analysis, changes of body surface length measurements, and 2D data on 3D body shape analysis on the size 3 patterns of the existing coat sleeve. For the sleeves, we used the body surface length of the range of shoulder's flexion and the joint angle of the range of wrist's ulnar deviation. And for the production of structural firefighting protective clothing using the research pattern, we recruited a recognized producer of structural firefighting protective clothing designated by KFI. Unlike everyday clothes, structural firefighting protective clothing should be able to fully protect the wearers from the harmful environment that threatens their lives and should not cause any restrictions on their movement. Therefore, the focus of research and development of such protective clothing should be placed on consistent development of new technologies and production methods that will provide protection and comfort for the wearer rather than production cost reduction or operational efficiency. This study is meaningful as it applied 3D motion analysis instead of the existing methods to develop the patterns. In particular, since 3D motion analysis enables the measurement of the range of motion, there should be continuous research on the development of ergonomics patterns that consider workers' range of motion.

Optimal Search Patterns for Fast Block Matching Motion Estimation (고속 블록정합 움직임 추정을 위한 최적의 탐색 패턴)

  • 임동근;호요성
    • Proceedings of the IEEK Conference
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    • pp.39-42
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    • 2000
  • Motion estimation plays an important role for video coding. In this paper, we derive optimal search patterns for fast block matching motion estimation. By analyzing the block matching algorithm as a function of block shape and size, we can find an optimal search pattern for initial motion estimation. The proposed idea, which has been verified experimentally by computer simulations, can provide an analytical basis for the current MPEG-2 proposals. In order to choose a more compact search pattern for BMA, we exploit the statistical relationship between the motion and the frame difference of each block.

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Evaluation of Polishing Characteristics for Polishing Patterns (연마패턴에 따른 연마특성 평가)

  • Cho J.R.;Lee J.Y.;Kimm N.K.;Jung Y.G.
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • pp.1579-1582
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    • 2005
  • Polishing is cutting process that polished workpiece by relative motion of abrasive grain between polishing tool and workpiece. According to relative motion forms(polishing patterns) of abrasive grain, the surface quality is different. Then, polishing patterns are important essential in polishing process. In work field, polishing patterns are determined by an expert of experience. Therefore, to work effective polishing, it is necessary that evaluate polishing characteristics for polishing patterns. And, polishing machine is made with cartesian coordinate robots, we estimate polishing characteristics by measurement of surface roughness.

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A Study on the In-plane Motion Measurement of Microstructure using $Moir{\acute{e}}$ Pattern ($Moir{\acute{e}}$ 무늬를 이용한 미세 구조물의 평면 움직임 측정에 관한 연구)

  • You, Bong-An;Lee, Byoung-Ho
    • Proceedings of the KIEE Conference
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    • pp.659-661
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    • 1997
  • An in-plane motion measurement method using $moir{\acute{e}}$ patterns by linear-gratings and cross-gratings, which can be used as micro inertial sensors, micro actuators, and micromachined scanning microscopes is demonstrated. A simple digital image processing method that calculates and analyzes the motion of microstructure from $moir{\acute{e}}$ patterns was developed. And using several grating structures fabricated by surface micromachining, we formed $moir{\acute{e}}$ patterns and analyzed the motion of microstructure.

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An Efficient 3-D Deinterlacing Algorithm by Detecting Accurate Motions Using Adaptive-Thresholded Values (적응적인 임계값을 적용한 정확한 움직임 검출과 이를 이용한 효율적인 3-D 디인터레이싱 알고리즘)

  • Cho, Dae-Rim;Song, Jin-Mo;Lee, Dong-Ho
    • Journal of Korea Multimedia Society
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    • v.13 no.11
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    • pp.1610-1620
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    • 2010
  • This paper proposes a motion-adaptive 3-D deinterlacing algorithm based on an adaptive-thresholded motion detection and an interpolation method using binary patterns to compensate motion missing and false motion errors. For efficient motion detection, we adaptively decided a threshold value according to the complexity of image. Many edge-based interpolation algorithms have been proposed to improve the subjective quality. Recently, to efficiently interpolate low angle edge and line, a method using predefined binary patterns has been proposed. In this paper, we propose an improved method by modifying the binary patterns. Simulation results have shown that the proposed method provides better performance than the existing methods.

Video Processing for Human Perception Oriented Coding

  • Oh, Hyung Suk;Kim, Wonha
    • Proceedings of the Korean Society of Broadcast Engineers Conference
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    • pp.143-146
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    • 2011
  • This paper presents human perception-based video coding method using an online learning framework. In this work, we analyze the relationship between human attention regions and video quality, and also consider human memory. We classify the motion patterns based on the analysis. Then, we devise a motion pattern classification method using Hedge algorithm. Along with the motion patterns, we smooth out the specific regions or sharpen details of the regions using the regional priorities. The preprocessed sequences are applied to the video codec. The performance is excellent on the overall quality as well as the regional quality.

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