scholarly journals Personalized Clothing Design Support System for Special Crowds Based on Artificial Intelligence Technology

2021 ◽  
Vol 2066 (1) ◽  
pp. 012015
Author(s):  
Yuli Hu
Keyword(s):  
Human Body ◽  
Three Dimensional ◽  
Costume Design ◽  
Scanning System ◽  
Human Body Model ◽  
Clothing Design ◽  
Function Modules ◽  
Artificial Intelligence Technology ◽  
Design Software ◽  
Human Body Models

Abstract In today’s society, people’s demand for personalized clothing is increasing, and they are increasingly pursuing traditional elements. Therefore, many fashion designers will incorporate folk elements into the traditional clothing design concepts to meet this demand. Sc a kind of computer technology Personalized auxiliary design software is produced. The function of this software is to use the MVC architecture to create system function modules, and then use the Kinect-based three-dimensional scanning system to model the human body, so as to clearly understand and obtain human body models with different characteristics. Take the folk art elements of opera as an example, integrate the opera elements into the costume design and save it in the database of the system. Under the action of the virtual algorithm, the personalized costume is matched with the human body model, which completes the costume design. Personalized design, and better design results can be obtained through this auxiliary design software.

Product Ergonomics Design Driven by Parametric Human Body Model

2011 ◽  
Vol 215 ◽  
pp. 136-143 ◽  
Author(s):  
B. Jiang ◽  
Chun Fu Lu ◽  
Xiao Jian Liu
Keyword(s):  
Human Body ◽  
Design Method ◽  
Structure Design ◽  
Design Parameters ◽  
Surface Model ◽  
Structure Model ◽  
Human Body Model ◽  
Body Model ◽  
Driving Model ◽  
Human Body Models

Considering the demands for product ergonomics design, the paper proposed a driven design method for product’s shape and structure design through the manipulation of human body models. Based on the anthropometry data, a parametric human body driving model system is established with three layers, which are structure model, dimension model and surface model. The driven design method of product ergonomics design is realized, in which human body data are directly mapped to product design parameters. The driven design method provides a rational way to utilize ergonomics design principles and guarantee higher efficiency and more reliability. The method is tested in seat design examples.

scholarly journals Personalization of a Human Body Model Using Subject-Specific Clothing Industry Dimensions

2021 ◽  
Author(s):  
Luděk Hynčík ◽  
Hana Čechová ◽  
Tomasz Bońkowski ◽  
Gabriela Kavalířová ◽  
Petra Špottová ◽  
...  
Keyword(s):  
Human Body ◽  
Injury Risk ◽  
Population Group ◽  
Clothing Industry ◽  
Human Body Model ◽  
Chinese Adults ◽  
Biomechanical Models ◽  
Body Model ◽  
Subject Specific ◽  
Human Body Models

Virtual human body models contribute to designing safe and user-friendly products through virtual prototyping. Anthropometric biomechanical models address different physiques using average dimensions. In designing personal protective equipment, biomechanical models with the correct geometry and shape shall play a role. The presented study shows the variations of subject-specific anthropometric dimensions from the average for the different population groups in the Czech Republic and China as a background for the need for personalized human body models. The study measures a set of clothing industry dimensions of Czech children, Czech teens, Czech adults and Chinese adults and compares them to the corresponding age average, which is represented by a scaled anthropometric human body model. The cumulative variation of clothing industry dimensions increases the farer is the population group from the average. It is smallest for the Czech adults 7.54% ± 6.63%, Czech teens report 7.93% ± 6.25% and Czech children differ 9.52% ± 6.08%. Chinese adults report 10.86% ± 11.11%. As the variations of the particular clothing industry dimensions from the average prove the necessity of having personalized subject-specific models, the personalization of particular body segments using the measured clothing industry dimensions leading to a subject-specific virtual model is addressed. The developed personalization algorithm results in the continuous body surface desired for contact applications for assessing body behavior and injury risk under impact loading.

COMPLIANCE TESTING FOR HUMAN BODY MODEL EXPOSURE TO ELECTROMAGNETIC FIELDS FROM A HIGH-POWER WIRELESS CHARGING SYSTEM FOR DRONES

2020 ◽  
Vol 189 (1) ◽  
pp. 13-27 ◽  
Author(s):  
Jangyong Ahn ◽  
Seon-Eui Hong ◽  
Haerim Kim ◽  
Yangbae Chun ◽  
Hyung-Do Choi ◽  
...  
Keyword(s):  
Electromagnetic Fields ◽  
Human Body ◽  
Internal Electric Field ◽  
Wireless Charging ◽  
Human Body Model ◽  
Case Scenario ◽  
Worst Case ◽  
Charging System ◽  
Compliance Testing ◽  
Human Body Models

Abstract Recently, a wireless charging system (WCS) for drones has been extensively studied, although standards for compliance testing of a WCS for drones have yet to be established. In this study, we propose methods for human exposure assessments of a WCS for drones by comprehensively considering the various positions of the system and the postures of human body models. The electromagnetic fields from a WCS are modeled and the internal quantities of the human body models, consisting of current density, internal electric field and specific absorption rate, are calculated. The incident fields around the WCS and the internal quantities are analyzed at 140 kHz, which is the operating frequency of the WCS applied. Results of an exposure assessment based on the confirmed worst-case scenario are presented. In addition, the internal quantities depending on the human body models and the material characteristics of the simplified models are also discussed using four different anatomical and simplified human body models.

Technology of Data Conversion and Reconstruction for Complex Surface Based on Non-Contact Measurement

2014 ◽  
Vol 685 ◽  
pp. 614-617 ◽  
Author(s):  
Jie Cai
Keyword(s):  
Physical Model ◽  
Human Body ◽  
Point Cloud ◽  
Three Dimensional ◽  
Data Conversion ◽  
Point Cloud Data ◽  
Human Body Model ◽  
Cloud Data ◽  
Contact Measurement ◽  
Body Model

Based on the technology of non-contact measurement, this paper has researched on complex curved surface physical modeling and data conversion technology, and has been applied to the human body modeling and data conversion in costume design. The measurement principle of grating projection is used to collect the point cloud data of surface of the physical model in a three-dimensional space. The point cloud data should be preprocessed with noise rejection, multi-view stitching and data reduction by Geomagic Studio software. Then the relatively regular surface area can be gotten by using parameter transformation, through two different ways. After that, the model surface data should be converted into Solidworks parts. By comparison and optimization, a better three-dimensional surface is gotten. A standard database of human body model has been set up and the main parameters of human body model data will be obtained by combined with non-contact three-dimensional measurement system. After all, part of the parameterization of the physical model has been realized through the work of invoking the model of the standard library, comparing the standard model with measured body model, doing the error analysis and so on.

The Application of 3D Scanner on Whole Body in 3D Clothing Design

2012 ◽  
Vol 507 ◽  
pp. 212-216
Author(s):  
Jian Xing Zhang
Keyword(s):  
Information Technology ◽  
Human Body ◽  
Costume Design ◽  
Garment Industry ◽  
3D Scanning ◽  
Whole Body ◽  
3D Scanner ◽  
Clothing Design ◽  
Garment Design ◽  
Short Time

With the development of information technology, 3D scanning technology is applied more and more widely. Especially it has some advantage in technical characteristics such as processing large amount of datas, responsing to the events of measurement process in short time, which makes the 3D scanning technology be used more and more widely in garment industry. This paper mainly studies 3D garment design in the applicationof human body 3D scanner,which provides a research platform.for costume design for the development of the area.

scholarly journals How muscle stiffness affects human body model behavior

2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Niclas Trube ◽  
Werner Riedel ◽  
Matthias Boljen
Keyword(s):  
Human Body ◽  
Computation Time ◽  
Material Model ◽  
Muscle Stiffness ◽  
Frontal Impact ◽  
Human Body Model ◽  
Muscle System ◽  
Body Model ◽  
The Past ◽  
Human Body Models

Abstract Background Active human body models (AHBM) consider musculoskeletal movement and joint stiffness via active muscle truss elements in the finite element (FE) codes in dynamic application. In the latest models, such as THUMS™ Version 5, nearly all human muscle groups are modeled in form of one-dimensional truss elements connecting each joint. While a lot of work has been done to improve the active and passive behavior of this 1D muscle system in the past, the volumetric muscle system of THUMS was modeled in a much more simplified way based on Post Mortem Human Subject (PMHS) test data. The stiffness changing effect of isometric contraction was hardly considered for the volumetric muscle system of whole human body models so far. While previous works considered this aspect for single muscles, the effect of a change in stiffness due to isometric contraction of volumetric muscles on the AHBM behavior and computation time is yet unknown. Methods In this study, a simplified frontal impact using the THUMS Version 5 AM50 occupant model was simulated. Key parameters to regulate muscle tissue stiffness of solid elements in THUMS were identified for the material model MAT_SIMPLIFIED_FOAM and different stiffness states were predefined for the buttock and thigh. Results During frontal crash, changes in muscle stiffness had an effect on the overall AHBM behavior including expected injury outcome. Changes in muscle stiffness for the thigh and pelvis, as well as for the entire human body model and for strain-rate-dependent stiffness definitions based on literature data had no significant effect on the computation time. Discussion Kinematics, peak impact force and stiffness changes were in general compliance with the literature data. However, different experimental setups had to be considered for comparison, as this topic has not been fully investigated experimentally in automotive applications in the past. Therefore, this study has limitations regarding validation of the frontal impact results. Conclusion Variations of default THUMS material model parameters allow an efficient change in stiffness of volumetric muscles for whole AHBM applications. The computation time is unaffected by altering muscle stiffness using the method suggested in this work. Due to a lack of validation data, the results of this work can only be validated with certain limitations. In future works, the default material models of THUMS could be replaced with recently published models to achieve a possibly more biofidelic muscle behavior, which would even allow a functional dependency of the 1D and 3D muscle systems. However, the effect on calculation time and model stability of these models is yet unknown and should be considered in future studies for efficient AHBM applications.

scholarly journals Real-Time Animation Complexity of Interactive Clothing Design Based on Computer Simulation

Complexity ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Yufeng Xin ◽  
Dongliang Zhang ◽  
Guopeng Qiu
Keyword(s):  
Computer Simulation ◽  
Real Time ◽  
Human Body ◽  
General Structure ◽  
Synthesis Method ◽  
Reconstruction Method ◽  
Human Body Model ◽  
Clothing Design ◽  
Information Block ◽  
Force Calculation

With the innovation of computer, virtual clothing has also emerged. This research mainly discusses the real-time animation complex of interactive clothing design based on computer simulation. In the process of realizing virtual clothing, the sample interpolation synthesis method is used, and the human body sample library is constructed using the above two methods (primitive construction method and model reconstruction method) first, and then, the human body model is obtained by interpolation calculation according to the personalized parameters. Building a clothing model is particularly important for the effect of trying on. The clothing that needs to be displayed can be scanned and then input into the computer to build the model. The model can be directly built in 3DMAX and other software and then its surface texture can be mapped, or the clothing model can be directly built. The 3D model in the 3ds file is loaded by the loop body nested switch branch selection structure. Correspondingly, the write-back operation of 3ds files is similar. Just follow the general structure of the 3ds file and write the root block, version information block, edit information block, key frame information block, etc. to a brand new file in sequence. The main reason for this article to perform the 3ds file write-back operation is that, after the clothing model is dynamically simulated through the dynamic principle, the deformed key animation frame needs to be saved as a 3ds file so that it can be further imported into the 3DSMAX software and generated by the renderer, form high-quality picture information, and finally get high-definition animation video. In the CPU-GPU hybrid method, modules such as force calculation, collision processing, and position update use the GPU method, while overstretching is processed by the CPU method, making the overall performance 10 times higher than the pure CPU method. This research helps to promote the development of 3D virtual clothing design.

Optimization of Underbody Blast Energy-Attenuating Seat Mechanisms Using Modified MADYMO Human Body Models

2021 ◽  
Author(s):  
Kelly Bosch ◽  
Ann Bailey ◽  
E. Meade Spratley ◽  
Robert S. Salzar ◽  
Paul Begeman ◽  
...  
Keyword(s):  
Human Body ◽  
Dynamic Models ◽  
High Rate ◽  
Human Body Model ◽  
Response Data ◽  
Blast Energy ◽  
Injury Criteria ◽  
Optimal Force ◽  
Spine Injuries ◽  
Human Body Models

Abstract Though energy attenuating (EA) seats for air and spacecraft applications have existed for decades, they have not yet been fully characterized for their energy attenuation capability or resulting effect on occupant protection in vertical underbody blast. EA seats utilize stroking mechanisms to absorb energy and reduce the vertical forces imparted on the occupant's pelvis and lower spine. Using dynamic rigid-body modeling, a tool to determine optimal force and deflection limits was developed to reduce pelvis and lower spine injuries in underbody blast events using a generic seat model. MAthematical DYnamic MOdels (MADYMO) and modeFRONTIER software were leveraged for this study. This optimizing tool may be shared with EA seat manufacturers and applied to military seat development efforts for EA mechanisms for a given occupant and designated blast severity. To optimally tune the EA seat response, the MADYMO Human Body Model (HBM) was first updated to improve its fidelity in kinematic response data for high rate vertical accelerative loading relative to experimental data from laboratory simulated underbody blast tests using post-mortem human surrogates (PMHS). Subsequently, using available injury criteria for underbody blast, the optimization tool demonstrated the ability to identify successful EA mechanism configurations to reduce forces and accelerations in the pelvis and lower spine HBM to presumed non-injurious levels. This tool could be tailored by varying input pulses, force and deflection limits, and occupant size to evaluate EA mechanism designs.

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