Region Based User-Generated Human Body Scan Registration

2018 ◽  
Author(s):  
Zongyi Xu ◽  
Qianni Zhang
Keyword(s):  
Human Body ◽  
Body Scan ◽  
Scan Registration

Anlysis Methods of the Variation of Facial Size and Shape Based on 3d Face Scan Images

2017 ◽  
Vol 61 (1) ◽  
pp. 1409-1413 ◽  
Author(s):  
W. Lee ◽  
L Goto ◽  
J.F.M. Molenbroek ◽  
R.H.M. Goossens
Keyword(s):  
Product Design ◽  
Human Body ◽  
Body Shape ◽  
Body Parts ◽  
Shape Variation ◽  
Design Features ◽  
Body Scan ◽  
Facial Mask ◽  
Size And Shape ◽  
Dutch Children

3D scan images have been successfully applied in ergonomic product design. Features of human body parts (e.g., landmarks, measurements, curvatures, surfaces, volumes) extracted from 3D body scan images can be used to analyze variations of the size and shape of human bodies. The information of size and shape variations can be applied in product design to support technical ideas regarding accommodation, tolerance, and adjustability. This study is aimed to briefly introduce a few analysis methods of body shape variation using 3D facial scan images of Dutch children in order to acquire useful features for the design of a children’s facial mask.

scholarly journals Complexity of 3D human body scan data modelling

Tekstilec ◽  
2018 ◽  
Vol 61 (4) ◽  
pp. 235-244
Author(s):  
Ivana Špelić ◽  
◽  
Slavenka Petrak ◽  
Keyword(s):  
Human Body ◽  
Data Modelling ◽  
Body Scan ◽  
Scan Data

Development of helmet mold design system using 3D anthropometric analysis

2019 ◽  
Vol 32 (3) ◽  
pp. 446-456
Author(s):  
Yeonghoon Kang ◽  
Sungmin Kim
Keyword(s):  
Human Body ◽  
Three Dimensional ◽  
Design System ◽  
Standard Normal Distribution ◽  
Body Scan ◽  
Content Type ◽  
Vertex Point ◽  
Standard Normal ◽  
Customized Production ◽  
Scan Data

Purpose The purpose of this paper is to develop a software can generate helmet mold from three-dimensional (3D) human body scan data. Design/methodology/approach An algorithm has been developed to divide data into arbitrary number of groups considering the width, length and height of head using the standard normal distribution theory. A basic helmet mold is generated automatically based on the shape of representative convex hull for each group. Findings It is possible to analyze the 3D human body scan data of groups with various characteristics and apply them to mass customized production of helmet. Practical implications This methodology can be applied for designing other products related to the head shape such as goggles and masks by varying the measurement items of the head. Social implications This methodology will enable mass customized production centered on consumers in the production and design of various equipment and goods to be worn on the head. Originality/value An algorithm has been developed to define the vertex point, which is the limit of scan data, for the analysis of 3D human body scan data scan data. In addition, a system was developed that can mass-produce customized products by effectively dividing groups while taking into account the physical characteristics of consumers.

Automatic human body segmentation based on feature extraction

2014 ◽  
Vol 26 (1) ◽  
pp. 4-24 ◽  
Author(s):  
JoonWoo Jo ◽  
MoonWon Suh ◽  
TaeHwan Oh ◽  
HeeSam Kim ◽  
HanJo Bae ◽  
...  
Keyword(s):  
Feature Extraction ◽  
Human Body ◽  
Automatic Segmentation ◽  
Previous Method ◽  
Body Scan ◽  
Landmark Detection ◽  
Content Type ◽  
Body Segmentation ◽  
Scan Data ◽  
Human Body Segmentation

Purpose – Automatic segmentation of unorganized 3D human body scan data was developed without heuristic specified values. It was reliable in finding the upper body's primary landmarks. The paper aims to discuss these issues. Design/methodology/approach – Quasi boundary point sequence (QBPS) was defined to find the boundary of the human body. Body scan data were categorized by clustering the features extracted from the predefined QBPS. A non-uniform rational B-spline (NURBS) approximation was used to detect the landmarks of the segmented upper torso. Findings – The segmentation method based on feature extraction was reliable regardless of the scan data's fidelity. It was verified that the landmark detection method introduced in this work is more robust than a previous method that utilizes the position of point data. Originality/value – There are several studies of human body segmentation and body landmark detection. This work, however, aims to automate fully segmentation and develop more reliable searching methods. Unlike previous work that uses only 2D human body information, this work uses 3D body information. Furthermore, previous landmark searching methods were superseded by more robust methods applying NURBS approximations.

Microstructural comparison of synthetic bioceramics with natural bioceramics

1991 ◽  
Vol 49 ◽  
pp. 38-39
Author(s):  
Shulin Wen ◽  
Jingwei Feng ◽  
A. Krajewski ◽  
A. Ravaglioli
Keyword(s):  
Recent Work ◽  
Human Body ◽  
Human Tissues ◽  
Main Constituent ◽  
Laboratory Furnace ◽  
Chinese Adult ◽  
Human Enamel ◽  
Biological Compatibility ◽  
Synthetic Hydroxyapatite ◽  
Synthetic Work

Hydroxyapatite bioceramics has attracted many material scientists as it is the main constituent of the bone and the teeth in human body. The synthesis of the bioceramics has been performed for years. Nowadays, the synthetic work is not only focused on the hydroapatite but also on the fluorapatite and chlorapatite bioceramics since later materials have also biological compatibility with human tissues; and they may also be very promising for clinic purpose. However, in comparison of the synthetic bioceramics with natural one on microstructure, a great differences were observed according to our previous results. We have investigated these differences further in this work since they are very important to appraise the synthetic bioceramics for their clinic application.The synthetic hydroxyapatite and chlorapatite were prepared according to A. Krajewski and A. Ravaglioli and their recent work. The briquettes from different hydroxyapatite or chlorapatite powders were fired in a laboratory furnace at the temperature of 900-1300°C. The samples of human enamel selected for the comparison with synthetic bioceramics were from Chinese adult teeth.

Sign in / Sign up

Export Citation Format

Share Document