scholarly journals The deadlift form analysis system using Microsoft Kinect

2017 ◽  
Vol 111 ◽  
pp. 174-182 ◽  
Author(s):  
Suputtra Sutthiprapa ◽  
Vajirasak Vanijja ◽  
Thanakrit Likitwon
2014 ◽  
Vol 1042 ◽  
pp. 94-99 ◽  
Author(s):  
H.Y. Ting ◽  
K.S. Sim ◽  
F.S. Abas

In sports, players have to perform body movement in a specific manner in order to obtain desired training effect. Badminton is one of Malaysia’s most popular sport, but there is still lack of research on action analysis focusing on this sport. In this paper, a method to analyze badminton action from depth map sequences acquired by Microsoft Kinect sensor is proposed. A compact and view invariant representation of the joint movement, namely region of movement index is generated from the three-dimensional coordinates of the tracked joint. Then, the overall or frame-based performance variation between the expert and learner is computed by mapping using dynamic time warping algorithm.


Author(s):  
Pratima Saravanan ◽  
Jiyun Yao ◽  
Jessica Menold

Clinical gait analysis is used for diagnosing, assessing, and for monitoring a patient by analyzing their kinetics, kinematics and electromyography while walking. Traditionally, gait analysis is performed in a formal laboratory environment making use of several high-resolution cameras, either video or infrared. The subject is asked to walk on a force platform or a treadmill with several markers attached to their body, allowing cameras to capture the joint coordinates across time. The space required for such a laboratory is non-trivial and often the associated costs of such an experimental setup is prohibitively expensive. The current work aims to investigate the coupled use of a Microsoft Kinect and Inertial Measurement Units as a portable and cost-efficient gait analysis system. Past studies on assessing gait using either Kinect or Inertial Measurement Units concluded that they achieve medium reliability individually due to some drawbacks related to each sensor. In this study, we propose that a combined system is efficient in detecting different phases of human gait, and the combination of sensors complement each other by overcoming the individual sensor drawbacks. Preliminary findings indicate that the IMU sensors are efficient in providing gait kinematics such as step length, stride length, velocity, cadence, etc., whereas the Kinect sensor helps in studying the gait asymmetries by comparing the right and left joint, such as hips, knees, and ankle.


2013 ◽  
Vol 284-287 ◽  
pp. 1996-2000 ◽  
Author(s):  
Hai Trieu Pham ◽  
Jung Ja Kim ◽  
Yong Gwan Won

Many motion analysis systems which have been introduced in the past few years are currently receiving interests from researchers and developers due to their usefulness and wide application capability in the future. However, many of those systems meet with difficulties for the real applications because of high cost for the implementation and less accuracy. This paper introduces a new 3D motion analysis system which can be implemented at a lower cost and acceptable accuracy for various applications. The key component of our new system is the use of the MSK (Microsoft Kinect) sensor system which is equipped with both visual camera and infrared camera. It can provide the color image, the 3D depth image and the 3D skeleton data without wearing any marker device on the human body while it can provide acceptable accuracy in 3D motion trace at low cost. Our system can be exploited for a base framework for various 3D motion-based applications such as physical rehabilitation support, sport motion analysis and biomechanical applications.


2020 ◽  
Vol 7 (2) ◽  
pp. 8
Author(s):  
Christin Mardiana ◽  
Rizky Gustevan Rayes

Abstrak Di Surabaya, ada banyak warnet game online, salah satunya yang akan dipakai untuk studi kasus adalah warnet 3 kingdom. Untuk masalah yang terjadi di warnet 3 kingdom ini,  belum tersedianya cup holder.belum tersedia sandaran kaki.belum ada tempat headphone.belum tersedianya hand dryer.belum usb hub.belum tersedianya tempat tisu. Dan kabel manajemennya berantakan. Selain di 3kingdom, peneliti juga memakai warnet xgate untuk studi kasus. Permasalahan yang terjadi pun sesuai dengan 3kingdom. Untuk 3 kingdom beralamat di Jalan Klampis Jaya blok A No. 29, Surabaya dan untuk Xgate beralamat di Ruko Landmark Delta, Jl. Panjang Jiwo Permai Selatan, Surabaya. Studi kasusnya sendiri melakukan observasi, wawancara dan membagikan kuisioner. Kuisioner dibagikan 15 pemain di 3kingdom dan 15 pemain di xgate. Untuk wawancaranya 5 pemain di 3kingdom dan 5 pemain di xgate. Untuk Analisisnya terdiri dari analisis kebutuhan, analisis kebutuhan ruang, analisis ergonomi dan antropometri, analisis penempatan, analisis material, analisis bentuk, analisis warna, analisis sistem, dan analisis mekanisme sambungan. Untuk konsep desain menggunakan konsep desain modern yaitu konsep yang mengutamakan efektivitas dan fungsionalitas. Untuk desain alternatif produk desain meja komputer warnet ini mempunyai 5 desain alternatif. Dan yang terakhir adalah oleh kesimpulan dan saran dari desain meja komputer warnet 3kingdom. Kata kunci : Desain, Game online, Meja Komputer, Warnet 3 kingdom,   Abstract In Surabaya, there are many online gaming cafes, one of which will be used for case studies is internet Cafe 3 Kingdom. For problems in the 3 Kingdoms Internet cafe, there is no available cup holder. No footrest yet. No headphone. No place yet. No hand dryer. No USB hub. Unavailability of tissue place. And the management cable was messy.  In addition to the 3kingdoms, researchers also used Xgate Cafe for case studies. The problem occurred in accordance with the 3kingdom. For 3 kingdoms located in Klampis Jaya block A No. 29 Street, Surabaya and for Xgate address at Landmark Delta,  South Panjang Jiwo Permai street, Surabaya. His own case studies observe, interview and distribute the questionnaire. The questionnaire was shared 15 players in 3kingdom and 15 players at Xgate. For his interview 5 players in 3kingdom and 5 players at Xgate. For analysis, it consists of needs analytics, space requirement analysis, ergonomics and anthropometry analysis, placement analysis, material analysis, form analysis, color analysis, system analysis, and connection mechanism analysis. For the concept of design using modern design concept is concept that prioritizes effectiveness and functionality. For alternative design of computer desk internet cafe has 5 alternative designs. And the last is by the conclusion and suggestion of the computer Desk Design Cafe 3kingdom. Keyword : 3Kingdom Cafe Online Games, Computer table, Design, Online Games


Author(s):  
S.F. Stinson ◽  
J.C. Lilga ◽  
M.B. Sporn

Increased nuclear size, resulting in an increase in the relative proportion of nuclear to cytoplasmic sizes, is an important morphologic criterion for the evaluation of neoplastic and pre-neoplastic cells. This paper describes investigations into the suitability of automated image analysis for quantitating changes in nuclear and cytoplasmic cross-sectional areas in exfoliated cells from tracheas treated with carcinogen.Neoplastic and pre-neoplastic lesions were induced in the tracheas of Syrian hamsters with the carcinogen N-methyl-N-nitrosourea. Cytology samples were collected intra-tracheally with a specially designed catheter (1) and stained by a modified Papanicolaou technique. Three cytology specimens were selected from animals with normal tracheas, 3 from animals with dysplastic changes, and 3 from animals with epidermoid carcinoma. One hundred randomly selected cells on each slide were analyzed with a Bausch and Lomb Pattern Analysis System automated image analyzer.


Author(s):  
A. V. Crewe ◽  
M. Ohtsuki

We have assembled an image processing system for use with our high resolution STEM for the particular purpose of working with low dose images of biological specimens. The system is quite flexible, however, and can be used for a wide variety of images.The original images are stored on magnetic tape at the microscope using the digitized signals from the detectors. For low dose imaging, these are “first scan” exposures using an automatic montage system. One Nova minicomputer and one tape drive are dedicated to this task.The principal component of the image analysis system is a Lexidata 3400 frame store memory. This memory is arranged in a 640 x 512 x 16 bit configuration. Images are displayed simultaneously on two high resolution monitors, one color and one black and white. Interaction with the memory is obtained using a Nova 4 (32K) computer and a trackball and switch unit provided by Lexidata.The language used is BASIC and uses a variety of assembly language Calls, some provided by Lexidata, but the majority written by students (D. Kopf and N. Townes).


Author(s):  
D.S. DeMiglio

Much progress has been made in recent years towards the development of closed-loop foundry sand reclamation systems. However, virtually all work to date has determined the effectiveness of these systems to remove surface clay and metal oxide scales by a qualitative inspection of a representative sampling of sand particles. In this investigation, particles from a series of foundry sands were sized and chemically classified by a Lemont image analysis system (which was interfaced with an SEM and an X-ray energy dispersive spectrometer) in order to statistically document the effectiveness of a reclamation system developed by The Pangborn Company - a subsidiary of SOHIO.The following samples were submitted: unreclaimed sand; calcined sand; calcined & mechanically scrubbed sand and unused sand. Prior to analysis, each sample was sprinkled onto a carbon mount and coated with an evaporated film of carbon. A backscattered electron photomicrograph of a field of scale-covered particles is shown in Figure 1. Due to a large atomic number difference between sand particles and the carbon mount, the backscattered electron signal was used for image analysis since it had a uniform contrast over the shape of each particle.


Author(s):  
W. O. Saxton

Recent commercial microscopes with internal microprocessor control of all major functions have already demonstrated some of the benefits anticipated from such systems, such as continuous magnification, rotation-free diffraction and magnification, automatic recording of mutually registered focal series, and fewer control knobs. Complete automation of the focusing, stigmating and alignment of a high resolution microscope, allowing focal series to be recorded at preselected focus values as well, is still imminent rather than accomplished, however; some kind of image pick-up and analysis system, fed with the electron image via a TV camera, is clearly essential for this, but several alternative systems and algorithms are still being explored. This paper reviews the options critically in turn, and stresses the need to consider alignment and focusing at an early stage, and not merely as an optional extension to a basic proposal.


1974 ◽  
Vol 38 (12) ◽  
pp. 691-696
Author(s):  
GL Olde ◽  
CP Cole ◽  
JW Wittrock

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