3D female upper body modelling based on 2D images

2020 ◽  
Vol 32 (4) ◽  
pp. 471-482
Author(s):  
Bingfei Gu ◽  
Md Kawysar Ahmed ◽  
Zejun Zhong ◽  
Juanfeng Jin

Purpose With the rapid advancement of computer information technology, the traditional clothing industry has stridden towards automation and digitization that drive the growth of electronic commerce and line retailing. The purpose of this paper is to propose an approach on 3D upper body modelling based on the body measurements extracted by non-contact anthropometry. Design/methodology/approach Based on the frontal and side images of the human body, the body sizes were extracted through silhouette extraction, identification of landmarks and girth prediction. The generation rules of 15 characteristic cross-sectional curves were established using a method “feature points – inserted points – feature curves – basic surface – mannequin”. The feature points of each position were determined at each curve, such as the side neck point, front neck point, shoulder point, bust point, and bust root point and so on to get the cross-sections, and then some feature points were inserted at the curves according to the widths and depths to establish the calculative models. For example, there are 18 points distributed at the bust cross-sectional curve to determine the shape. Findings The final mannequin could describe the basic characteristics of a human body, and the shape of the feature curves could also fit the body type to provide basis for the future research on automatic pattern generation. Originality/value This study can realize the 3D virtual modelling of female upper body and the automatic generation of the individualized apparel patterns based on the frontal and side images.

2019 ◽  
Vol 31 (1) ◽  
pp. 115-129
Author(s):  
Jie Sun ◽  
Qianyun Cai ◽  
Tao Li ◽  
Lei Du ◽  
Fengyuan Zou

PurposeConsidering two-dimensional features in the body shape classification system cannot fully reflect the three-dimensional (3D) morphological characteristics of human body. The purpose of this paper is to propose a 3D feature based method to characterize and classify the upper body shape of women, and then obtained the corresponding garment block and improved the fitness of clothing.Design/methodology/approachIn this study, the [TC]23D scanner was used to obtain human data, and 15 layers of cross-sections of young females’ upper body were extracted. In total, 240 space vectors were obtained with the center of the bust cross-section as the original point. By using the principal component analysis and K-means clustering analysis, the body shape classification based on the space vectors length was realized. The garment block corresponding to three body types was obtained using the 3D scanning data and the cross-section convex hull, and compared with existing garment block and evaluated fitness of the blocks.FindingsIn total, 11 main components used to characterize the 3D morphological features of young women were obtained, which could explain 95.28 percent features of young women’s upper body. By cluster analysis, the body shape of women was divided into three categories. The block of three body types was obtained by the construction of the convex hull model.Originality/valueThis paper investigates a classification method of the body shape based on space vector length, which can effectively reflect the difference of surface shape of human body and further improve the matching degree of human body and clothing.


2008 ◽  
Vol 16 (1) ◽  
pp. 59-76 ◽  
Author(s):  
Robyn McLaughlin ◽  
Assem Safieddine

PurposeThis paper seeks to examine the potential for regulation to reduce information asymmetries between firm insiders and outside investors.Design/methodology/approachExtensive prior research has established that there are substantial effects of information asymmetry in seasoned equity offers (SEOs). The paper tests for a mitigating effect of regulation on such information asymmetries by examining differences in long‐run operating performance, changes in that performance, and announcement‐period stock returns between unregulated industrial firms and regulated utilities that issue seasoned equity. The authors also segment the samples by firm size, since smaller firms are likely to have greater asymmetries.FindingsConsistent with regulated utility firms having lower levels of information asymmetry, they have superior changes in abnormal operating performance than industrial firms pre‐ to post‐issue and their announcement period returns are significantly less negative. These findings are most pronounced for the smallest firms, firms likely to have the greatest information asymmetries and where regulation could have its greatest effect.Research limitations/implicationsThe paper does not examine costs of regulation. Thus, future research could seek to measure the cost/benefit trade‐off of regulation in reducing information asymmetry. Also, future research could examine cross‐sectional differences between different industries and regulated utilities.Practical implicationsRegulation reduces information asymmetry. Thus, regulation or mandated disclosure may be appropriate in industries/markets where information asymmetry is severe.Originality/valueThis paper is the first to compare the operating performance of regulated and unregulated SEO firms.


2015 ◽  
Vol 36 (2) ◽  
pp. 216-235 ◽  
Author(s):  
Carlos Gradín ◽  
Olga Cantó ◽  
Coral del Río

Purpose – The purpose of this paper is to analyze the different dynamic characteristics of unemployment in a selected group of European Union countries during the current Great Recession, which had unequal consequences on employment depending on the country considered. Design/methodology/approach – The paper follows Shorrocks’s proposal of a duration-sensitive measure of unemployment, and uses cross-sectional data reported by Eurostat coming from European Labour Force Surveys. Findings – The results add some evidence on the relevance of incorporating spells’ duration in measuring unemployment, finding remarkable differences in unemployment patterns in time among European countries. Research limitations/implications – In this paper unemployment is analyzed for all the labor force. Future research should investigate patterns across specific groups such as young people, women, immigrants or the low skilled. Practical implications – It is generally accepted that the negative impact of unemployment on individual welfare can be very different depending on its duration. However, conventional statistics on unemployment do not adequately capture to what extent the recession is not only increasing the incidence of unemployment but also its severity in terms of duration in time of ongoing unemployment spells. The paper shows an easy and practical way to do it in order to improve the understanding of the unemployment phenomenon, using information usually reported by statistical offices. Originality/value – First, the paper provides a tool for dynamic analysis of unemployment based on reported cross-sectional data. Second, the paper demonstrates the empirical relevance of considering spells’ duration when assessing differences in unemployment across countries or in unemployment trends. This is usually neglected or only partially addressed by most conventional measures of unemployment.


2017 ◽  
Vol 29 (3) ◽  
pp. 862-882 ◽  
Author(s):  
Fiona X. Yang ◽  
Sherry Xiuchang Tan

Purpose This paper aims to empirically investigate how event innovation may induce desirable corporate branding. Design/methodology/approach A survey yielded 280 complete responses from tourists who had attended an event in Macau. Structural equation modeling was used to test the innovation-corporate loyalty framework through perceived event value and corporate image, with a multi-group comparison to examine differences between first-time and repeat customers. Findings The results indicate that innovation is not only the key to value enhancement of the event but also an efficacious instrument of branding the parent company and building corporate loyalty; only product-related innovation has a significant impact on event value; both functional and emotional values induce a more favorable corporate image; and event-induced corporate branding is more effective in securing repeat business than attracting new clientele. Practical implications The findings help hospitality operators and event planners to leverage innovative events for corporate branding and cater to different customer segments by providing distinct marketing strategies. Originality/value The study contributes to the body of knowledge regarding event management and corporate branding and sheds light on future research to explore the initiative and benefit of pushing forward event innovation.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Kochu Therisa Karingada ◽  
Michael Sony

PurposeThe COVID-19 pandemic lockdown has caught many educational institutions by surprise and warranted an abrupt migration from offline to online learning. This has resulted in an education change, without any time for due consideration, as regards its impact on musculoskeletal disorders (MSD) on students. The purpose of this study is to investigate MSD related to online learning during the COVID-19 pandemic lockdown.Design/methodology/approachA cross-sectional study was conducted on undergraduate students in India. In total, 261 students participated in this online survey.FindingsThe study finds that around 80% of students have reported some symptom in the head, neck and eyes since they started online learning. In total, 58% have reported MSD symptom in the right shoulder and 56% in the right hand fingers. Besides, more than 40 % of students experienced some MSD symptoms, in almost all the body parts studied, due to online learning. Correlation analysis is conducted between time spent on online learning per day and MSD symptoms.Originality/valueThis is the first study conducted on MSD and online learning during COVID-19 pandemic.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Adrian St. Patrick Duncan

Purpose The purpose of this paper hinged on the concept of smart libraries and their development for the furtherance of information access, dissemination and information resources and services delivery in Caribbean libraries. Design/methodology/approach To conduct this research, the literature of smart libraries and technologically driven and their application in libraries were reviewed by examining existing literature on information and communication technologies and technology in libraries. Findings The literature highlighted that this technological advancement is not yet fully on stream in academic libraries of the Caribbean owing to the lack of financial, technological and organizational resources. It further outlined that certain aspects of library automation are fostered through the inclusion of technology. Research limitations/implications The limitation of this study is that only academic libraries of the Caribbean region were assessed. Other regions should be explored in future research. Originality/value The concept of smart libraries is an emerging issue with limited scope for scrutiny; a systematic and extensive review of recent research on smart in libraries is unavailable. This paper presents an overview of smart libraries or technologically driven libraries, its findings for potential research opportunities and development for academic libraries. In addition, it will build on the body of knowledge that is presently non-existent on smart libraries in the Caribbean.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Willy Das ◽  
Satyasiba Das ◽  
Manojit Chattopadhyay

PurposeThe purpose of this paper is to review and critique the existing literature on entrepreneurial teams (ET) by taking a multi-disciplinary viewpoint and provide a future research agenda based on the identified themes and trends.Design/methodology/approachA systematic literature review (SLR) was undertaken using “business source complete”. Further scrutiny and application of exclusion criteria led to a final sample consisting of 139 papers from 27 different journals belonging to not just entrepreneurship and strategic management but also other disciplines like OB, finance, sociology, psychology, etc. Using qualitative thematic analysis, the authors identified 11 major themes.FindingsThe paper reviews both the eleven themes and the linkages between the themes. Thereby identifying areas that have been understudied and those that have received comparatively more attention. The review revealed that the research stream possesses certain conceptual and methodological concerns apart from its cross-sectional and primarily bivariate nature. Five such main concerns have been identified and discussed in detail. Other elements of the resulting research agenda include calls for more clinical process-oriented research, further attention to context, shifting the level of analysis, and a need to integrate across disciplines.Originality/valueThis paper incorporates a broad insight of ET across academic disciplines to show how future contributions could benefit by incorporating research from other fields. In doing so, provides a starting point for more nuanced discussions around the interrelationships between the different conversations that are taking place in the ET literature.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Asphat Muposhi ◽  
Brighton Nyagadza ◽  
Chengedzai Mafini

PurposeFashion designers in South Africa remain ambivalent in embracing sustainable fashion. This study examines the role of neutralisation techniques on attitude towards sustainable fashion. The study was conducted in South Africa, an emerging market known for water scarcity and pollution emanating from the textile industry.Design/methodology/approachA structured questionnaire was used to collect cross-sectional data from a sample of 590 fashion designers using a web-based online survey. Study constructs were drawn from the neutralisation theory and theory of planned behaviour.FindingsStandard multiple regression analysis results identified denial of injury, appeal to higher loyalties and external locus of control as the major rationalisation techniques influencing South African designers' negative attitudes towards sustainable fashion.Research limitations/implicationsResearch was conducted in South Africa where the concept of sustainable fashion is still at developmental stages. The generalisation of the study findings may be enhanced by extending the study to other markets with a fully developed market for sustainable fashion.Practical implicationsThe study results underscore the necessity of reducing social, structural and institutional barriers associated with the adoption of sustainable fashion. This study provides input towards efforts to develop attitude change strategies to stimulate designers to embrace sustainable fashion.Originality/valueThe research study contributes to theory, practice and future research.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Ana Junça Silva ◽  
Cannanda Lopes

PurposeThis study aimed to (1) analyze whether the perceived organizational support (POS) was a significant predictor of performance and stress and (2) explore the mediating role of engagement in these relations.Design/methodology/approachTo test the hypotheses, the authors collected data with 200 working adults in a mandatory quarantine due to COVID-19 pandemic crisis.FindingsThe results showed that the POS contributed to increase engagement, and consequently, job performance. These relations also proved to be significant for stress, because when the POS increased, the work engagement also increased, and as a result decreased occupational stress.Research limitations/implicationsThis study relied on a cross-sectional design. Therefore, future research should consider a daily design to replicate this study and analyze daily fluctuations. Overall, the authors can conclude that work engagement is an affective process through which POS decreases stress and increases performance.Originality/valueThis study tests the mediating effect of work engagement on the link between POS, stress and performance, and its theoretical and practical implications of these findings are discussed.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Susanne Böse ◽  
Stefan Brauckmann-Sajkiewicz

PurposeThis study aims to explore the extent to which schools principals serving disadvantaged communities in Germany are able to set appropriate goals and choose suitable measures for improving their schools according to the specific challenges they face. The authors determine whether principals are able to identify their schools' challenges or whether they merely follow “universal recipes” of the school effectiveness research paradigm regardless of their particular school context. This effectiveness-driven accountability approach requires an in-depth evaluation of the school and its stakeholders and might lead to a new attitude toward failure that sees it as an essential part of developing effective school improvement plans.Design/methodology/approachThe authors conducted descriptive and correlative analyses as well as exploratory and confirmatory factor analyses using longitudinal data of 164 school principals. Through cross-sectional analyses, the authors investigated the connection among challenges, goals and measures and how they correlated with (self-reported) improvements.FindingsFrom a leadership perspective, priorities for school improvement should be aligned with the school-specific challenges they identify and the goals they set to address them.Research limitations/implicationsThe extent to which legislation concerning individual school quality development programs can translate into feasible and effective actions is unclear. Caution should be taken when interpreting the findings of this study, as they reflect school principals' self-selected evaluation measures and therefore might be biased.Practical implicationsIn future research, emphasis should be placed on school management processes, in particular, the development of strategic decision-making, structuring of target perspectives and derivation of steps in school improvement and instructional development. The authors recommend the government offer school principals appropriate and adequate training and support services to prevent them from overburdening their staff.Originality/valueThis paper contributes to a deeper understanding of processes concerning strategic leadership, as opposed to operative management, of schools by revealing context-sensitive considerations.


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