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Article

Muhammad Yahya, Jawad Ali Shah, Kushsairy Abdul Kadir, Zulkhairi M. Yusof, Sheroz Khan and Arif Warsi

Motion capture system (MoCap) has been used in measuring the human body segments in several applications including film special effects, health care, outer-space and…

Abstract

Purpose

Motion capture system (MoCap) has been used in measuring the human body segments in several applications including film special effects, health care, outer-space and under-water navigation systems, sea-water exploration pursuits, human machine interaction and learning software to help teachers of sign language. The purpose of this paper is to help the researchers to select specific MoCap system for various applications and the development of new algorithms related to upper limb motion.

Design/methodology/approach

This paper provides an overview of different sensors used in MoCap and techniques used for estimating human upper limb motion.

Findings

The existing MoCaps suffer from several issues depending on the type of MoCap used. These issues include drifting and placement of Inertial sensors, occlusion and jitters in Kinect, noise in electromyography signals and the requirement of a well-structured, calibrated environment and time-consuming task of placing markers in multiple camera systems.

Originality/value

This paper outlines the issues and challenges in MoCaps for measuring human upper limb motion and provides an overview on the techniques to overcome these issues and challenges.

Details

Sensor Review, vol. 39 no. 4
Type: Research Article
ISSN: 0260-2288

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Abstract

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Pigment & Resin Technology, vol. 29 no. 1
Type: Research Article
ISSN: 0369-9420

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Abstract

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Pigment & Resin Technology, vol. 29 no. 4
Type: Research Article
ISSN: 0369-9420

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Pigment & Resin Technology, vol. 29 no. 1
Type: Research Article
ISSN: 0369-9420

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Article

Ala Al‐Fuqaha, Mohammed Elbes and Ammar Rayes

Outdoor localization is an important issue for many applications, such as autonomous mobile robotics and augmented reality. The purpose of this paper is to propose a…

Abstract

Purpose

Outdoor localization is an important issue for many applications, such as autonomous mobile robotics and augmented reality. The purpose of this paper is to propose a budgeted dynamic exclusion heuristic based on signal phase shifts from multiple base stations.

Design/methodology/approach

The authors also propose an outdoor localization technique based on the particle filter for data fusion and present an overview of a potential target application of the proposed outdoor localization approach for the blind and visually impaired (BVI).

Findings

The combination of multiple sensor data tends to overcome the drawbacks of using one sensor technology in the localization process.

Originality/value

The novelty of the proposed approach stems from its ability to fuse data collected from different sensor technologies to converge to more accurate position estimation.

Details

International Journal of Pervasive Computing and Communications, vol. 9 no. 2
Type: Research Article
ISSN: 1742-7371

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Article

Marco Bortolini, Maurizio Faccio, Francesco Gabriele Galizia, Mauro Gamberi and Francesco Pilati

Industry 4.0 emerged as the Fourth Industrial Revolution aiming at achieving higher levels of operational efficiency, productivity and automation. In this context, manual…

Abstract

Purpose

Industry 4.0 emerged as the Fourth Industrial Revolution aiming at achieving higher levels of operational efficiency, productivity and automation. In this context, manual assembly systems are still characterized by high flexibility and low productivity, if compared to fully automated systems. Therefore, the purpose of this paper is to propose the design, engineering and testing of a prototypal adaptive automation assembly system, including greater levels of automation to complement the skills and capabilities of human workers.

Design/methodology/approach

A lab experimental field-test is presented comparing the assembly process of a full-scale industrial chiller with traditional and adaptive assembly system.

Findings

The analysis shows relevant benefits coming from the adoption of the adaptive automation assembly system. In particular, the main findings highlight improvements in the assembly cycle time and productivity, as well as reduction of the operator’s body movements.

Practical implications

The prototype is applied in an Italian mid-size industrial company, confirming its impact in terms of upgrades of the assembly system flexibility and productivity. Thus, the research study proposed in this paper provides valuable knowledge to support companies and industrial practitioners in the shift from traditional to advanced assembly systems matching current industrial and market features.

Originality/value

This paper expands the lacking research on adaptive automation assembly systems design proposing an innovative prototype able to real-time reconfigure its structure according to the product to work, e.g. work cycle, and the operator features.

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Article

Atsushi Shimada, Madoka Kanouchi, Daisaku Arita and Rin‐Ichiro Taniguchi

The purpose of this paper is to present an approach to improve the accuracy of estimating feature points of human body on a vision‐based motion capture system (MCS) by…

Abstract

Purpose

The purpose of this paper is to present an approach to improve the accuracy of estimating feature points of human body on a vision‐based motion capture system (MCS) by using the variable‐density self‐organizing map (VDSOM).

Design/methodology/approach

The VDSOM is a kind of self‐organizing map (SOM) and has an ability to learn training samples incrementally. The authors let VDSOM learn 3D feature points of human body when the MCS succeeded in estimating them correctly. On the other hand, one or more 3D feature point could not be estimated correctly, the VDSOM is used for the other purpose. The SOM including VDSOM has an ability to recall a part of weight vector which have learned in the learning process. This ability is used to recall correct patterns and complement such incorrect feature points by replacing such incorrect feature points with them.

Findings

Experimental results show that the approach is effective for estimation of human posture robustly compared with the other methods.

Originality/value

The proposed approach is interesting for the collaboration between an MCS and an incremental learning.

Details

International Journal of Intelligent Computing and Cybernetics, vol. 2 no. 2
Type: Research Article
ISSN: 1756-378X

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Article

Patrick Lo, Holly H.Y. Chan, Angel W.M. Tang, Dickson K.W. Chiu, Allan Cho, Eric W.K. See-To, Kevin K.W. Ho, Minying He, Sarah Kenderdine and Jeffrey Shaw

The purpose of this paper is to examine how the emergent 3D interactive media technologies are used as a viable tool for enhancing visitors’ overall experiences at an…

Abstract

Purpose

The purpose of this paper is to examine how the emergent 3D interactive media technologies are used as a viable tool for enhancing visitors’ overall experiences at an exhibition entitled, 300 Years of Hakka Kungfu – Digital Vision of Its Legacy and Future (Hakka Kungfu Exhibition) – presented and co-organized by the Intangible Cultural Heritage Office of Hong Kong, International Guoshu Association and the School of Creative Media, City University of Hong Kong.

Design/methodology/approach

A questionnaire survey in both online and paper-based formats was used for identifying visitors’ experiences in the interactions with the multimedia technologies. For this research study, a questionnaire, consisting of 26 items, was set out to measure the visitors’ experiences at the Exhibition. Since the Exhibition was about presenting a centuries-old Chinese cultural heritage, Hakka Kungfu via the use multimedia technologies, in the context of establishing a dialogue between the past and present, the researchers included questionnaire items that were devoted to enquire about the level of understanding, knowledge and enjoyment, and visitors’ new knowledge about Hong Kong history and culture was successfully disseminated to the respondents at the end of the questionnaire.

Findings

A total of 209 completed questionnaires were collected at this Hakka Kungfu Exhibition. The findings reveal that the exhibits did attract people at all ages. This Exhibition gave the visitors a sense of interest and wonder in the object and information presented in the Exhibition. Findings of this study also reveal that this Exhibition has successfully attracted a large number of female visitors, as well as visitors who have never taken any martial arts training. In addition, visitors’ Exhibition experience was found to be memorable, as well as enjoyable. Furthermore, visitors’ experience within the Exhibition suggested that it was entertaining, as well as educational. By creating a long-lasting impact on the minds of these Exhibition visitors about the connections between and relevance of traditional Chinese Kungfu, their collective cultural identity, as well as the contemporary society we live in. The Exhibition exemplified the successful integration of the presentation of Kungfu as a form of cultural heritage with engagement-creating technology, in which technology is unobtrusive but effective.

Originality/value

Although it is already a global trend for the museums to integrate multimedia technologies into their exhibitions, research on the situation and feedback of multimedia technology used in the museum exhibitions in Hong Kong is scarce as well as scattered. Findings of this study could help identify various factors involved in audience participation, thereby exploring the possibility of building a contact point/space for traditional Chinese Kungfu as an intangible cultural heritage, via the integration of the latest media technologies. In particular, the development of multimedia technologies has become increasingly important to museums, and museum professionals have been exploring how digital and communication technologies can be developed to offer visitors a more interactive, personalized museum experience. In general, despite the growing interest in deploying digital technology as interpretation devices in museums and galleries, there are relatively few studies that examine how visitors, both alone and with others, use new technologies when exploring the museum contents.

Details

Library Hi Tech, vol. 37 no. 2
Type: Research Article
ISSN: 0737-8831

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