Smartphone Application Service Research Articles

3D BUILDING RECONSTRUCTION BY MULTIVIEW IMAGES AND THE INTEGRATED APPLICATION WITH AUGMENTED REALITY

Abstract. This study presents an approach wherein photographs with a high degree of overlap are clicked using a digital camera and used to generate three-dimensional (3D) point clouds via feature point extraction and matching. To reconstruct a building model, an unmanned aerial vehicle (UAV) is used to click photographs from vertical shooting angles above the building. Multiview images are taken from the ground to eliminate the shielding effect on UAV images caused by trees. Point clouds from the UAV and multiview images are generated via Pix4Dmapper. By merging two sets of point clouds via tie points, the complete building model is reconstructed. The 3D models are reconstructed using AutoCAD 2016 to generate vectors from the point clouds; SketchUp Make 2016 is used to rebuild a complete building model with textures. To apply 3D building models in urban planning and design, a modern approach is to rebuild the digital models; however, replacing the landscape design and building distribution in real time is difficult as the frequency of building replacement increases. One potential solution to these problems is augmented reality (AR). Using Unity3D and Vuforia to design and implement the smartphone application service, a markerless AR of the building model can be built. This study is aimed at providing technical and design skills related to urban planning, urban designing, and building information retrieval using AR.

스마트폰 애플리케이션 서비스의 기술-서비스 융합 양상 분석

Recently, the emergence of smartphone foster the technological convergence. This convergence no longer takes place within technologies only. Rather, convergence phenomena happen as a form of embodied services. However, previous research on convergence has been subject to the technology-oriented studies, including suggesting patent-based indexes or analyzing technological characteristics. However, investigating technology-service convergence is critical since most of new smart services are technology-based convergence services. Therefore, we analyze the pattern of technology-service convergence which occurs in the smartphone application services. We divided the smatphone application services into four categories, and employ a network analysis to represent the convergence phenomena of each category. Our study is expected to provide meaningful implication in new service development practice.

Developing new smart services using integrated morphological analysis: integration of the market-pull and technology-push approach

With the rise of smart services, new services are no longer generated via the traditional linear models of innovation. Rather, smart-service innovations require new frameworks to integrate the market-pull and technology-push models, which focus on both user-centric considerations and technological developments. However, current streams of research continue to merely suggest a conceptual framework. Therefore, it appears to be difficult to apply this framework into practice, due to a lack of systematic methodologies. In response, this study employs morphological analysis, a powerful tool for the systematic generation of ideas. Since the morphological analysis employs several dimensions for explaining new services and combines them to generate new ideas, it is easy to integrate the different approaches to innovations, such as market pull and technology push. A case study of smartphone application services is also conducted.

GTM-based service map to identify new service opportunities

This study proposes a unique approach for developing and utilising generative topographic mapping (GTM)–based service maps to discover new opportunities of smartphone application service (SAS) with a case of App Store. Since GTM is a probabilistic approach of mapping multidimensional data space onto a low–dimensional latent space and vice versa, it contributes to the automatic detection and interpretation of derived service vacuums that must be intensively investigated to discover new opportunities of SAS. The main contributions and potential utilities of this study are threefold. First, this study theoretically contributes to new service development (NSD) research in mobile service area by proposing an intelligent approach. Secondly, this study is exploratory in that the inverse mapping of a GTM model is first proposed. Lastly, since all activities in the process could be computerised, researchers, engineers, managers, etc., who are interested in NSD can save considerable time and effort when uncovering new service opportunities in terms of managerial implications.

A prediction and auto-execution system of smartphone application services based on user context-awareness

Smartphones have emerged as suitable environments for user context-awareness and intelligent service provision due to the high penetration rate, the high usability, various embedded sensors, and so on. In particular, its most unique characteristic is the usage of various applications. However, the most of existing studies through the three steps process (log collection, context inference, and service provision) did not consider smartphone applications (Apps) as the target service. Smartphone users still have to use Apps with manual controls by own decision. Therefore, in this paper, we propose a system to predict smartphone applications based on inferring user context. We define a mobile context model with a new level of context (Situation) and its inference method to perceive a user’s intention or purpose related to the App usage. Based on the Situation context, the system predicts Apps which can be useful and helpful for a user and automatically executes it on his/her smartphone. With the proposed system, it will be possible to autonomously provide and manage smartphone application services without users’ perception or intervention.

Implementation of Augmented Reality System for Smartphone Advertisements

The recent development and popularization of personal mobile devices has brought a lot of changes into information search and offering. In particular, the newly emerged augmented reality system made possible an innovative way of information acquisition by providing additional information of the virtual world to the real world. This work used the markerless augmented reality system on smartphones to design and implement the smartphone application service aimed at efficiently conveying information on advertisements to users. The conventional advertising applications simply introduce and explain goods by inducing consumers to have an interest, whereas the markerless application service developed in this work interacts with the augmented reality system and database management system to quickly provide more accurate and diversified information to users.

LED 전광판과 스마트폰을 이용한 AR 마커인식 기반의 URL 연결 서비스 플랫폼 구현

스마트폰 활성화에 따라 모바일 마케팅의 활용성이 점차 증가하여 QR 코드나 증강현실의 AR 마커를 이용한 스마트폰 응용 서비스가 많은 관심을 받고 있다. 더욱이 옥외 광고의 형태가 LED 전광판으로 전환되면서 가시광무선 통신 기술을 이용하여 모바일 마케팅 활용에 대한 시도가 이루어지고 있다. 이에 본 논문은 가시광 무선 통신 기술을 이용하여 LED 패널과 스마트폰 카메라를 이용하여 AR 마커 기반의 URL 연결 응용 서비스를 구현하였다. 이러한 구현 결과를 토대로 응용 서비스 실행을 위한 서비스 연결에 소요되는 시간 및 성공률에 대한 성능을 분석하였다. As the mobile marketing through the smartphone has gradually increased, the smartphone application services using the AR marker, QR codes and augmented reality have attracted much attention. Furthermore the outdoor advertising is migrated to LED signage, which brings the visible light wireless communication technologies to the trial for mobile marketing. In this paper we present the implementation of AR marker-based URL access application services through smartphone camera using visible-light wireless communication technologies. We analyze the performance of the implemented system in terms of connection time and success rate.

스마트폰 위치기반서비스에서 정보제공의도 : 프라이버시 계산 관점을 중심으로

LBS(Location-Based Service) is one of the smartphone application services which has been receiving great attention recently. Various applications of smartphone use LBS to provide innovative services. However, use of LBS raises privacy concerns because the location information of users is constantly exposed. Privacy calculus perspective attempts to understand the characteristics of the user's privacy. It is based on the risk-benefit analysis in the economics' perspective. That is, when the benefit expected through personal information disclosure is higher than risk, we are willing to provide personal information. This research suggested a research model based on the privacy calculus perspective to clarify the effect of information disclosure intention of smartphone LBS application users. Based on the main factors of privacy calculus, perception of privacy risk and privacy benefit, the relationship of the perceived value and the information disclosure intention was empirically analyzed by utilizing structural equation modeling(SEM) methodology. According to the results of the empirical analysis, it was found that all relations have statistically significant explanatory power except the relation between privacy concern and information disclosure intention. This study showed a strong evidence of antecedent factors based on privacy calculus of personal information disclosure in smartphone LBS applications.

스마트폰 어플리케이션 서비스의 불만족이 고객 행동에 미치는 영향에 관한 연구

Purpose: Due to the explosive growth and widespread use of smartphones, new business opportunities are emerging. Despite the importance of creating customer value in using smartphone applications, past studies on have mainly focused on functions or factors and specifications that influence users to use the device. Methods: This study is intended to identify how customer dissatisfaction from the use of smartphone application services affects customer sentiment and behavior. The research model is tested via a survey of 290 smartphone application users. Results: The result of this empirical study indicates that customer dissatisfaction significantly affects the user's disappointment and regret in using a service, which are subordinate values of customer emotion. The user's anger is positively associated with 'Negative word of mouth' and 'Complaint', which are subordinate values of customer behavior, but not with an intention to switch to another service. 'Regret' and 'Disappointment' are positively associated with 'Negative word of mouth' and 'Switching intention', but not with 'Making direct complaints'. Finally, customer's negative sentiments are a significant intermediary in the relationship between customer dissatisfaction and behavioral response. Conclusion: Finally, the study offers a more systematic understanding on the phasal response process of customer dissatisfaction in relation to the provision of smartphone application services.

The Study on Service Design Development for Pharmacy Users: Using Smart Phone Application

Objective: This study is to review the current state of services offered to pharmacy users, and develop a service design converging a prescription service and a smart phone application service in order to enhance patients’ experience at pharmacies and home. Background: Under the new medical system; separation of prescribing and dispensing drugs, a doctor writes a prescription to their patients and patients have their prescription filled at the pharmacy. As the number of flue, allergy and atopy patients has increased, waiting lines have been longer at pharmacies. Besides, the current medical service system lacks of providing proper information on prescribed pills to patients. There are already services offered during waiting times such as offering free drinks, magazines or suggesting general drugs which you can buy without prescription, however they neither cover the current medical service’s shorts nor shorten the waiting time. Method: I researched objective and perceived waiting times reduction methods, the current service status at pharmacies, and the government’s policy direction in a medical service. Also, I observed a patient’s journey from the hospital to pharmacy and then horne. I examined the circumstance at pharmacies, patients’ behaviors and their thoughts during their journey, and extracted three main goals to design a service in order to help patients have positive perception during the waiting time; (1) to reduce the perceived time by the way of visualizing time and offering readings about what patients consider necessary, (2) to educate patients what they are into and how to get through, (3) to establish trust among patients, doctors and pharmacists. Based on three goals, I designed a structure and a wireframe for a new service application of smart phones. Results: With a new service design for pharmacy users, users can track their medical record and visit the information about their current medical treatments anytime. Also the service helps patients build reliable relationships with doctors and pharmacists. Conclusion: Experience is not just an activity but series of multiple activities. The serving range of a medical service should not be determined by stakeholders but user’s holistic experience. By approaching a service design with a holistic vision, it can enrich not only a temporary experience but also a whole life well being. Application: Since there are already many service applications advising patients about their illness and finding right doctors, this service design is focused on the experience from getting a prescription till feeling better. The next move is to combine those two parts medical services and design an integrated service application. As a prescription is going to be coded in numbers, we might consider to design an un-attended pharmacy which can shorten huge amount of time for filling prescriptions.

Analysis and visualisation of structure of smartphone application services using text mining and the set-covering algorithm: a case of App Store

This paper analyses and visualises the structure of smartphone application services to identify which smartphone application services are being developed and provided in detail. Using text information contained in web documents, the structure of smartphone application services is quantitatively and systematically analysed through two steps. First, representative services are identified and characterised to find distinctive features of current smartphone application services in the App Store by using text–mining and the set–covering algorithm. Second, based on representative services, three visual forms ? grid, tree, and network ? are illustrated to illuminate the structure of smartphone application services.