• 대한공간정보학회지
• /
• 제14권2호
• /
• pp.33-42
• /
• 2006

최근 LiDAR데이터를 이용한 3차원 위치 정보와 지표면 속성정보를 취득하는 연구가 많이 진행되고 있다. LiDAR 데이터는 높은 위치정확도를 지니며, 데이터의 취득시 바로 지상좌표를 취득함으로써 좌표의 변환이 필요 없기 때문에 좀더 빠르게 데이터를 처리할 수 있는 장점을 가지고 있다. 본 연구에서는 LiDAR 데이터만을 이용하여 수치지도의 가장 많은 부분을 차지하는 도로, 건물, 등고선을 제작하여, 기존 수치지도와 정확도를 비교함으로서 LiDAR 데이터만을 이용한 수치지도제작의 가능성을 평가하였다.

• 한국가구학회지
• /
• 제23권2호
• /
• pp.110-121
• /
• 2012

With people's recent increasing interest in good design products, wood and metal products have gained great popularity. However, it was believed that it would be necessary to have a transformation to the manufacturing method based on digital data and equipments from existing analog-based manufacturing method, in order to meet consumers' demand. This study was aimed to seek for the possibility of mass-producing wood and metal products through the research on the type, usage and development conditions of digital data and the methods of utilizing digital equipments. As for research methods, the study analyzed the concepts and types of digital data through various internet and literature reviews and suggested perpetual calendar products as the final outcome of design development using computer data. Through this, the study summarized and organized actual design development processes by stage to provide basic data that could become the foundation of research on the design of wood and metal products using digital data. Through the outcome of this project, the following effects could be expected by developing wood and metal products through digital data. First, its accurate and precise process would help mass-produce complex forms of products and reduce their defective rate. Second, the compatible production of various types of digital equipments would lead to a cost reduction. Third, the diversity of design could be pursued by overcoming technical limitations. In order to satisfy the above expectation effects, such as realization of developing and producing various wood and metal products, there should be designers' creative experimental spirits, their active information exchange and cooperation with the companies concerned.

• 대한전자공학회:학술대회논문집
• /
• 대한전자공학회 2004년도 학술대회지
• /
• pp.562-566
• /
• 2004

In this paper, we propose a method for constructing terrestrial/cable PSIP converting system, so-called a PSIP converter, which is converting terrestrial PSIP into cable PSIP for a data broadcasting service in the interoperable network of terrestrial and cable, and define an interface between the PSIP converter and the OOB SI generator by using PMCP messages compliant to ATSC T3/S1. The exiting PSIP converter just converts terrestrial PSIP into cable PSIP compliant to ATSC and OCAP standard and transmits by a MPEG-2 TS format. That is to say, it is not for the digital data broadcasting but for the digital broadcasting. Say in other word, the proposed PSIP converter is designed to convert and transmit PSIP including DET information which is necessary data event information for data broadcasting service. In addition, the PSIP converter can support various types of PSIP information to the OOB SI generator by using PMCP messages defined by a hierarchical structure as per each channel, audio/video event, data event and so on.

• 천문학논총
• /
• 제19권1호
• /
• pp.101-107
• /
• 2004

This paper describes the digital back-end system for getting the data to analyze the user observation mode by digitalize the analog data after receiving the space radio using the radio telescope, The received analog data will be digitalized by high-speed sampler with 1 Gsps for 4 channel frequency band of millimeter wave, and the digital data will be transported through the fiber-optic digital transmission system and WDM(wavelength division multiplex) to observation building, The wideband digital FIR(Finite Impulse Response) filters analyze the data for user observation mode to record the data in high-speed recorder with 1 Gbps. In this paper, we introduce the overall system configuration and features combined by various information and communication technology in radio astronomy briefly, which will be adopted by KVN(Korean VLBI Network).

• 한국컴퓨터정보학회논문지
• /
• 제22권5호
• /
• pp.21-28
• /
• 2017

As technology related to digital imaging equipment is developed and generalized, digital imaging system is used for various purposes in fields of society. The object tracking technology from digital image data in real time is one of the core technologies required in various fields such as security system and robot system. Among the existing object tracking technologies, cam shift technology is a technique of tracking an object using color information of an object. Recently, digital image data using infrared camera functions are widely used due to various demands of digital image equipment. However, the existing cam shift method can not track objects in image data without color information. Our proposed tracking algorithm tracks the object by analyzing the color if valid color information exists in the digital image data, otherwise it generates the lightness feature information and tracks the object through it. The brightness feature information is generated from the ratio information of the width and the height of the area divided by the brightness. Experimental results shows that our tracking algorithm can track objects in real time not only in general image data including color information but also in image data captured by an infrared camera.

• 한국정밀공학회:학술대회논문집
• /
• 한국정밀공학회 2004년도 추계학술대회 논문집
• /
• pp.993-997
• /
• 2004

A data error inspection algorithm for wireless digital data communication was developed. Original data converted By wireless digital data error inspection algorithm. Wireless digital data is high possibility to get distortion and lose by noise and barrier on wireless. If the data check damaged and lost at receiver, can't make it clear and can't judge whether this data is right or not. Therefore, by wireless transmission data need the data error inspection algorithm in order to decrease the data distortion and lose and to monitoring the transmission data as real time. This study consists of RF station for wireless transmission, Water Level Meter station for water level measurement and Error inspection algorithm for error check of transmission data. This study is also that investigation and search for error inspection algorithm in order to wireless digital data transmission in condition of the least data's damage and lose. Designed transmitter and receiver with one - chip micro process to protect to swell the volume of circuit. Had designed RF transmitter - receiver station simply by means of ATMEL one - chip micro processing the systems. Used 10mW of the best RF power and 448MHz-449MHz on frequency band which is open to public touse free within the limited power.

• 한국정보시스템학회지:정보시스템연구
• /
• 제23권1호
• /
• pp.161-184
• /
• 2014

Our study measures the Digital Life Index (DLI) of baby boomers by considering the utilization of digital devices in their everyday life. The study was conducted by implementing the following three-step approach: (1) development of survey questions and data collection; (2) build Digital Life Index (DLI) model and lastly; (3) empirical analysis using the Digital Life Index (DLI). In the first stage in order to develop the survey questions to measure the digital index, two surveys were conducted. For the first preliminary survey, it was done based on the existing literatures which enabled this investigation through FGI analysis involving real professionals. The second survey was conducted by commissioning a specialized external firm. In this survey, a total of 400 data was collected to verify the validity and objectivity of the data sample. The data gathered through the survey questions was used to develop the digital index. Firstly, the appropriate factors were extracted by conducting factor analysis. This factor analysis validates and verifies the factors which are appropriate in measuring Digital Life Index (DLI). The derived factors are broadly divided into five main factors. The first factor describes the possession, purchase and use of digital device (x1). Meanwhile, the second factor describes the digital device's software (x2) and the third factor describes the participation in utilizing digital device (x3). The fourth factor describes the utilization of digital device in human personal relationship (x4) and lastly, the fifth factor describes the effect of digital device in everyday life and work environment (x5). Secondly, the digital index model was developed. The variables to represent the Digital Life Index (DLI) are ${\chi}1t,{\chi}2t,{\chi}3t,{\chi}4t$ and ${\chi}5t$. Furthermore, as experience in using the digital index grows overtime, the growth can be represented by the "S" shape. Based on the results, Digital Life Index(DLI) is distributed with the highest point at 90.3 and the lowest point at 25.9.

• 디지털융복합연구
• /
• 제10권3호
• /
• pp.99-104
• /
• 2012

디지털 포렌식은 기기에 내장된 디지털 자료를 근거로 삼아 발생한 행위에 대한 사실관계를 규명하고 증명하는 신규 보안서비스이다. 본 논문에서는 디지털 포렌식 수행 절차인 증거 수집, 증거 분석, 증거 제출에 사용할 수 있는 디지털 포렌식 도구를 구현하였다. 이 디지털 포렌식 도구는 누구나 쉽게 분석할 수 있도록 하기 위하여 직관적인 GUI를 제공하고, 간단한 조작만으로도 활성 데이터를 수집, 분석할 수 있고, 많은 시간과 노력을 감소시키고, 신뢰성이 있는 자료를 제공할 수 있다.

• 한국기록관리학회지
• /
• 제18권2호
• /
• pp.1-28
• /
• 2018

고고학은 현재에 직접 관찰할 수 없는 과거의 인간 행위를 연구하는 학문이다. 따라서 과거의 물질문화와 정황을 기록하고 있는 데이터는 고고학 연구에 있어 매우 중요하다. 그럼에도 불구하고 우리나라에서 고고학 데이터를 위한 디지털 아카이브 개발에 관심을 가지고 개발의 필요성에 대해 주장하는 사람들은 별로 없다. 본 논문은 고고학 데이터와 그 데이터를 위한 디지털 아카이브의 중요성과 필요성에 대해 생각해봄으로써, 우리나라의 국가 고고학 데이터 디지털 아카이브 개발의 필요성을 인식하는 기회가 마련되었으면 하는 바람에서 시작되었다. 이를 위해 본 논문에서는 먼저 고고학의 학문, 데이터, 디지털 아카이브의 성격에 대해 간단하게 살펴보도록 하겠다. 다음 부분에서는 세계적으로 유명한 고고학 데이터의 디지털 아카이빙 사례를 살펴보도록 하겠다. 마지막으로 앞의 내용들을 고려하여 우리나라의 국가 고고학 데이터 디지털 아카이브 개발을 위한 제언을 하고자 한다.

• 한국측량학회:학술대회논문집
• /
• 한국측량학회 2003년도 춘계학술발표회 논문집
• /
• pp.479-484
• /
• 2003

The renewal of digital map takes much time and the manual process. LiDAR data allows reduction of time, automatic manner, and acquisition of the precise position. So it is used to renew the digital map of 1:5,000 scale. From the accuracy test results using aerial imagery and digitizing, renewal of digital map are feasible in automatic manner to some extent.