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1 – 10 of 112J. Paul Siebert and Stephen J. Marshall
Describes a non‐contact optical sensing technology called C3D that is based on speckle texture projection photogrammetry. C3D has been applied to capturing all‐round 3D models of…
Abstract
Describes a non‐contact optical sensing technology called C3D that is based on speckle texture projection photogrammetry. C3D has been applied to capturing all‐round 3D models of the human body of high dimensional accuracy and photorealistic appearance. The essential strengths and limitation of the C3D approach are presented and the basic principles of this stereo‐imaging approach are outlined, from image capture and basic 3D model construction to multi‐view capture and all‐round 3D model integration. A number of law enforcement, medical and commercial applications are described briefly including prisoner 3D face models, maxillofacial and orofacial cleft assessment, breast imaging and foot scanning. Ongoing research in real‐time capture and processing, and model construction from naturally illuminated image sources is also outlined.
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Xiangyang Ju, J. Paul Siebert, Nigel J.B. McFarlane, Jiahua Wu, Robin D. Tillett and Charles Patrick Schofield
We have succeeded in capturing porcine 3D surface anatomy in vivo by developing a high‐resolution stereo imaging system. The system achieved accurate 3D shape recovery by matching…
Abstract
We have succeeded in capturing porcine 3D surface anatomy in vivo by developing a high‐resolution stereo imaging system. The system achieved accurate 3D shape recovery by matching stereo pair images containing only natural surface textures at high (image) resolution. The 3D imaging system presented for pig shape capture is based on photogrammetry and comprises: stereo pair image acquisition, stereo camera calibration and stereo matching and surface and texture integration. Practical issues have been addressed, and in particular the integration of multiple range images into a single 3D surface. Robust image segmentation successfully isolated the pigs within the stereo images and was employed in conjunction with depth discontinuity detection to facilitate the integration process. The capture and processing chain is detailed here and the resulting 3D pig anatomy obtained using the system presented.
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Hao Wu, Xiangrong Xu, Jinbao Chu, Li Duan and Paul Siebert
The traditional methods have difficulty to inspection various types of copper strips defects as inclusions, pits and delamination defects under uneven illumination. Therefore…
Abstract
Purpose
The traditional methods have difficulty to inspection various types of copper strips defects as inclusions, pits and delamination defects under uneven illumination. Therefore, this paper aims to propose an optimal real Gabor filter model for inspection; however, improper selection of Gabor parameters will cause the boundary between the defect and the background image to be not very clear. This will make the defect and the background cannot be completely separated.
Design/methodology/approach
The authors proposed an optimal Real Gabor filter model for inspection of copper surface defects under uneven illumination. This proposed method only requires a single filter by calculating the specific convolution energy of the Gabor filter with the image. The Real Gabor filter’s parameter is optimized by particle swarm optimization (PSO), which objective fitness function is maximization of the Gabor filter’s energy average divided by the energy standard deviation, the objective makes a distinction between the defect and normal area.
Findings
The authors have verified the effect with different iterations of parameter optimization using PSO, the effects with different control constant of energy and neighborhood window size of real Gabor filter, the experimental results on a number of metal surface have shown the proposed method achieved a well performance in defect recognition of metal surface.
Originality/value
The authors propose a defect detection method based on particle swarm optimization for single Gabor filter parameters optimization. This proposed method only requires a single filter and finds the best parameters of the Gabor filter. By calculating the specific convolution energy of the Gabor filter and the image, to obtain the best Gabor filter parameters and to highlight the defects, the particle swarm optimization algorithm’s fitness objective function is maximize the Gabor filter's average energy divided by the energy standard deviation.
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The purpose of this paper is to use selected discussions appearing on the talk pages of the Wikipedia entry on the Vietnam War to shed light on how the wider epistemological…
Abstract
Purpose
The purpose of this paper is to use selected discussions appearing on the talk pages of the Wikipedia entry on the Vietnam War to shed light on how the wider epistemological context of this online encyclopaedia affects the nature of debate about sources and subsequently how this knowledge could be used to improve information literacy instruction.
Design/methodology/approach
My broad approach to the study of the Wikipedia talk pages on the Vietnam War is qualitative in nature and explores the debate over sources through a textual analysis.
Findings
Although much of the debate over sources is conducted without acrimony, the level of analysis one finds in the talk pages is rather shallow while the attention of individual contributors is not overly concentrated.
Originality/value
There have been few studies of individual Wikipedia entries and their talk pages, rather the focus of most of the literature has been on a broad overview of the entire encyclopaedia or a concentration on a set of entries for a particular topic area.
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Irfan Ali, Vincent Charles, Umar Muhammad Modibbo, Tatiana Gherman and Srikant Gupta
The COVID-19 pandemic has caused significant disruptions to global supply chains (SCs), affecting the production, distribution, and transportation of goods and services. To…
Abstract
Purpose
The COVID-19 pandemic has caused significant disruptions to global supply chains (SCs), affecting the production, distribution, and transportation of goods and services. To mitigate these disruptions, it is essential to identify the barriers that have impeded the seamless operation of SCs. This study identifies these barriers and assesses their impact on supply chain network (SCN).
Design/methodology/approach
To determine the relative importance of different barriers and rank the affected industries, a hybrid approach was employed, combining the best-worst method (BWM) and the technique for order preference by similarity to an ideal solution (TOPSIS). To accommodate the inherent uncertainties associated with the pandemic, a triangular fuzzy TOPSIS was used to represent the linguistic variable ratings provided by decision-makers.
Findings
The study found that the airlines and hospitality industry was the most affected by the barriers, accounting for 46% of the total, followed by the healthcare industry (23%), the manufacturing industry (19%), and finally the consumer and retail industry (17%).
Research limitations/implications
This study is limited to the four critical industries and nine identified barriers. Other industries and barriers may have different weights and rankings. Nevertheless, the findings offer valuable insights for decision-makers in SC management, aiding them in mitigating the impact of COVID-19 on their operations and enhancing their resilience against future disruptions.
Originality/value
This study enhances understanding of COVID-19’s impact on SCN and provides a framework for assessing disruptions using multi-criteria decision-making processes. The hybrid approach of BWM and TOPSIS in a fuzzy environment is unique and offers potential applicability in various evaluation contexts.
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This essay raises the following question “Does economics have an ethical component?”. In this regard, Mayer finds that two distinct perspectives have unique and continuing…
Abstract
This essay raises the following question “Does economics have an ethical component?”. In this regard, Mayer finds that two distinct perspectives have unique and continuing significance: the instrumentalist and the personalist. The first, he says, traces its origins to the very beginnings of economics as a discipline, has dominated economic thought ever since, and denies there is a place for ethics in the science of economics. The second is of more recent origin, has been far less influential in shaping economic thought, and insists that economics indeed has an ethical component because economic affairs are human affairs. Mayer states that John Paul II has contributed to the development of the personalist perspective by insisting that humans are more than mere instrumentalities in the process of production. They are human persons first and foremost, with a moral agency which they bring with them to the workplace and the marketplace.
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This paper argues for an increased volume of references to Gabriel Tarde and Georg Simmel in the field of organization sociology. The text emphasizes the importance of these two…
Abstract
This paper argues for an increased volume of references to Gabriel Tarde and Georg Simmel in the field of organization sociology. The text emphasizes the importance of these two sociologists in understanding the role of imperfection in organizing and the phenomena of fashion and imitation in contemporary organizations. Tarde’s theory challenged the antinomy between continuity and discontinuity, considering finite entities as cases of infinite processes and stable situations as transitory. Simmel’s theory of fashion explores the democratic and democratizing nature of fashion, which satisfies the demand for social adaptation and differentiation. They both saw fashion as a selection mechanism for organizational forms and managerial practices. Furthermore, referring to Tarde and Simmel can help counter the overemphasis on identity construction and the neglect of alterity in social sciences. The construction of identity often overlooks the inevitability of difference and alterity, which are essential aspects of collective projects. Lastly, this paper discusses Simmel’s concept of the stranger and its relevance in analyzing the experiences of foreigners and their potential advantages as “double strangers” in academia and society. The conclusion is that Tarde and Simmel’s contributions offer valuable insights for understanding the dynamics of management, organizing, and social interactions in contemporary organizations.
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Throughout sport, the incidence of commercial sponsorship is increasing and shows no signs of slowing. This case study examines the negative consequences that can arise when a…
Abstract
Throughout sport, the incidence of commercial sponsorship is increasing and shows no signs of slowing. This case study examines the negative consequences that can arise when a corporate stadium naming rights partner (Enron) becomes embroiled in financial and ethical controversies and how its collapse affected the team that uses the stadium for its home games (Major League Baseball's Houston Astros). It examines public relations strategies and tactics the Astros used to disassociate themselves from Enron and to recapture public support.
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Oscar Javier Montiel-Méndez and Lorena del Carmen Álvarez-Castañón
The aim of this paper is to analyze the impact of the implementation of a psychological assistance program on new entrepreneurs in a business incubator of a public university…
Abstract
The aim of this paper is to analyze the impact of the implementation of a psychological assistance program on new entrepreneurs in a business incubator of a public university located in an emerging economy. The methodology was an intrinsic case study through qualitative approach. The findings suggest that this program had a positive impact on new entrepreneurs; it promoted a space for reflection, motivation and perseverance; it encouraged them to handle different emotions or factors to achieve its business targets. Thus, it helped them to improve the chances of success of their start-ups by learning and strengthening key psychological entrepreneurial competences.
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