• 한국정보시스템학회지:정보시스템연구
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• 제27권1호
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• pp.43-65
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• 2018

Purpose The emergence of mobile applications has simplified our life in various ways. Regarding tourism activities, mobile applications are already efficient in providing personalized tourism related information and are very much effective in booking hotels, flights, etc. However, there are very few studies on classifying the actual service requirements and improving the customer satisfaction in mobile tourism applications. The purpose of this study is to implement a practical mobile tourism application. To serve the purpose, we classify and categorize the service requirement of mobile tourism applications in Korea. We employed Kano model and analytic hierarchy process (AHP). Specifically, we conducted a focus group study to find out the service requirements in mobile tourism applications. Design/methodology/approach The data for this study were collected from Koreans and Foreigners who has the experience using mobile tourism applications. Participants needed to be familiar with mobile tourism applications because such users may be more aware of the mobile tourism applications services. We analyzed 147 valid data using Kano model and conducted AHP analysis on five experts in the field of tourism using Expert Choice software. Findings In this paper, we identified the 17 service quality requirements in the mobile tourism applications. The results reveal that the service requirement such as Geo-location map, Multilingual option, Compatibility with different operating systems were unavoidable service, absent of such requirements leads to the dissatisfaction. Based on the results of the integrated application of both Kano model and AHP analysis, this study provide specific implications for improving the service quality of the mobile tourism applications in Korea.

• 대한공간정보학회지
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• 제20권3호
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• pp.29-40
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• 2012

현재 수치지도를 비롯한 모든 공간정보의 속성정보를 취득하기 위한 방법으로는 현장에서 직접적인 조사를 수행하는 지리조사가 일반적이다. 그러나 수치지도 제작을 위한 지리조사는 수치지도에서 표현하는 모든 지형지물에 대한 현장 직접조사를 수행하여야 하기 때문에 지리조사의 범위가 매우 광범위하다. 또한 현재의 지리조사는 지리조사원도(종이지도)를 이용하여 수작업에 의한 조사방법을 이용하기 때문에 조사에 많은 인력, 경비, 시간이 소요되고 있다. 최근 일부 지리조사를 휴대용 및 차량용 MMS(Mobile Mapping System)를 이용하여 전산화 정보를 수집하고 있으나, 직접적으로 수치지도의 제작에 이용하기 위해서는 해결해야 할 문제점들이 있다. 본 연구에서는 현행 지리조사 기준 및 방법의 문제점을 분석하고 국내 외 공간정보 구축 및 서비스 기관의 지리조사 방법을 조사하여 수치지도 제작에 적합한 지리조사 기준 및 방법을 제시함으로써 수치지도 제작 업무의 효율성을 높이고 수치지도의 최신성 및 신뢰도 향상과 지리조사 자료의 활용성을 증대시켜 전국기반 수치지도의 활용성을 극대화 하고자 한다.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2008년도 International Symposium on Remote Sensing
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• pp.270-273
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• 2008

Telematics is a leading IT service where wireless internet service represented by information and mobility is extended to the area of transportations to provide Telematics service. One of the killer-application about Telematics is navigation system. Recently, due to the mass storage conversion, the performance of the terminal and mobile communications technology development, navigation system is also changed. It more and more develops into 3D in a pre-existence 2D map. In the future, it is expected to include the remote sensing map or video map. There is also the characteristic of all the information expressed in frequently a change partially happening. That is, POI(Point Of Interest) which is freshly registered or is deleted is many. In a pre-existence, Map Contents Providers offer the new version map by off-line monthly or quarterly. And a user wastes time and is inconvenient because of updating the total map by the off-line. Thus, in this paper, in order to resolve this, we describe MAUS(Map Air Update Server) for updating only the partial map that was changed

• 한국지리정보학회지
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• 제16권3호
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• pp.1-11
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• 2013

본 연구에서는 모바일 단말기를 이용하여 여행자에게 효과적인 관광 서비스를 제공하기 위한 위치 기반 서비스 알고리듬을 개발하여 전주시 한옥마을에 적용하였다. 먼저, 단일노선에서는 GPS 오차범위와 보행속도, 그리고 다중노선에서는 GPS 위치와 노선에 대한 최근린 기법을 조합한 알고리듬을 이용하여 위치 서비스를 개선하였다. 또한 본 연구에서는 노선의 Node와 Link의 위상관계를 자동으로 구축하기 위해 DuraMap-Xr 공간엔진을 이용한 프로그램을 개발하였으며, Blackpoint-Xr 모바일 앱 엔진을 기반으로 단일과 다중 노선상에서의 위치 서비스 기술을 구현함으로서 여행 편의성을 향상 시킬 수 있는 기반을 마련하였다.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2011년도 춘계학술대회
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• pp.245-247
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• 2011

모바일 기상 정보 서비스에서 USN, 휴대폰, 대중 교통차량 등 다양한 클라이언트로부터 센싱된 데이터는 무선 통신망을 통하여 서버에 수집되어야 한다. 수집된 데이터는 지속적으로 증가하는 대용량 데이터로서 특별한 쿼리 방법과 자료 구조가 요구된다. 이 논문은 기상 정보 서비스를 위해 필요한 시스템 구조를 설계하고 자료구조와 쿼리 유형을 분석한다.

• International Journal of Contents
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• 제18권2호
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• pp.32-46
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• 2022

In recent years, large-scale and high-density use of LED on facades has exposed some disadvantages, such as light pollution, high energy consumption, unsustainability, and poor interactivity. Because of the development of smartphones and augmented reality (AR), AR has emerged as a new technology available to users to interact with the media façade. As an augmented reality app for public space, the AR map app can superimpose virtual images on the surface of a building to form an AR media façade, which can be applied in the fields of navigation, advertising, interactive public art, smart retail, etc. This study establishes the variables influencing usage intention and the consequent outcomes of Huawei AR map app and uses the technology acceptance model (TAM) to discuss their relationship. Results show that consumer innovativeness, information quality, and design quality have a strong influence on perceived ease of use. Information quality has a positive impact on perceived usefulness, but design quality has a weak influence. Also, the design quality of Huawei AR map app and consumer innovativeness have a higher effect on perceived enjoyment than information quality. Users' usage attitude and perceived usefulness when using Huawei AR map app are key factors determining their usage intention. This study inspires city planners, architects, developers, and designers of AR apps that augmented reality can partly replace media façade, and that investment in augmented reality will achieve significant sustainable economic and social benefits.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제8권5호
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• pp.1690-1710
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• 2014

In this paper, we propose the rapid implementation of a 3-dimensional (3D) facial reconstruction from a single frontal face image and introduce a design for its application on a mobile device. The proposed system can effectively reconstruct human faces in 3D using an approach robust to lighting conditions, and a fast method based on a Canonical Correlation Analysis (CCA) algorithm to estimate the depth. The reconstruction system is built by first creating 3D facial mapping from a personal identity vector of a face image. This mapping is then applied to real-world images captured with a built-in camera on a mobile device to form the corresponding 3D depth information. Finally, the facial texture from the face image is extracted and added to the reconstruction results. Experiments with an Android phone show that the implementation of this system as an Android application performs well. The advantage of the proposed method is an easy 3D reconstruction of almost all facial images captured in the real world with a fast computation. This has been clearly demonstrated in the Android application, which requires only a short time to reconstruct the 3D depth map.

• 로봇학회논문지
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• 제14권4호
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• pp.293-300
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• 2019

In this paper, an Embedded solution for fast navigation and precise positioning of mobile robots by floor features is introduced. Most of navigation systems tend to require high-performance computing unit and high quality sensor data. They can produce high accuracy navigation systems but have limited application due to their high cost. The introduced navigation system is designed to be a low cost solution for a wide range of applications such as toys, mobile service robots and education. The key design idea of the system is a simple localization approach using line features of the floor and delayed localization strategy using topological map. It differs from typical navigation approaches which usually use Simultaneous Localization and Mapping (SLAM) technique with high latency localization. This navigation system is implemented on single board Raspberry Pi B+ computer which has 1.4 GHz processor and Redone mobile robot which has maximum speed of 1.1 m/s.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2005년도 Proceedings of ISRS 2005
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• pp.663-666
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• 2005

The Geography Markup Language (GML) is an XML encoding for the transport and storage of geographic information, including both the geometry and properties of geographic features. This paper uses the GML to provide extendibility and interoperability of spatial data in moving objects management system. Since the purpose of the system is to provide locations of the moving objects in the web and mobile environments, we used the GML both for presenting map data and trajectories of the moving objects. The proposed system is composed of Location Data Interface, Moving Objects Engine, and Web/Mobile Presentation Interface. We utilized the concept of Web Map Server, that is web mapping technology of OGC (Open Geospatial Consortium), to integrate map data and the location information of the moving objects. In the process of the integration, we used the standard data model and interfaces while defining new application schema. Since our suggested system uses open spatial data encoding and interfaces, both extendibility and interoperability are guaranteed.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2003년도 춘계학술대회
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• pp.822-827
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• 2003

Topological maps have drawn more attention recently because they are compact, provide natural interfaces, and are applicable to path planning easily. To build a topological map incrementally, Voronoi diagram was used by many researchers. The Voronoi diagram, however, has difficulty in applying to arbitrarily shaped objects and needs long computation time. In this paper, we present a new method for global topological map from the local topological maps incrementally. The local topological maps are created through a thinning algorithm from a local grid map, which is built based on the sensor information at the current robot position. A thinning method requires simpler computation than the Voronoi diagram. Localization based on the topological map is usually difficult, but additional nodes created by the thinning method can improve localization performance. A series of experiments have been conducted using a two-wheeled mobile robot equipped with a laser scanner. It is shown that the proposed scheme can create satisfactory topological maps.