• 한국주거학회논문집
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• 제25권3호
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• pp.115-121
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• 2014

This paper draws the home into the stream of information and communications technology (ICT) development. Considering that homes and our home life are constantly affected by persistent change influenced by ICT, it is remarkable that ICT has been relatively neglected as an object of research in the field of housing studies. This study provides an overview of conceptual movements in ICT/home relationships and their design and social impact through a critical discourse analysis. The conceptual movements must be considered by professionals in the field of housing and built environment to stay attuned to changes in the 21st Century. Diverse debates took place in the discourse about ICT in relation to home. The stream of thought was started by futurists who saw the electronic cottage as a solution to the social problems caused by the separation of work and home life in industrial cities. ICT has now entered a new phase, with WiFi P2P networks and location-based social media that encourage sharable homes. Based on the analysis of the discourse on ICT and home, we drew from three issues related to the paradigm shifts in homes in the context of ICT development to provide future directions for housing studies: from space programming to time scheduling, from individual ownership to shared access, and from live+work dwelling to live+work+community.

• 한국컴퓨터정보학회논문지
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• 제20권7호
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• pp.9-16
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• 2015

This paper proposes the parallel design of a shot change detection algorithm using frame segmentation and moving blocks. In the proposed approach, the high parallel processing components, such as frame histogram calculation, block histogram calculation, Otsu threshold setting function, frame moving operation, and block histogram comparison, are designed in parallel for NVIDIA GPU. In order to minimize memory access delay time and guarantee fast computation, the output of a GPU kernel becomes the input data of another kernel in a pipeline way using the shared memory of GPU. In addition, the optimal sizes of CUDA processing blocks and threads are estimated through the prior experiments. In the experimental test of the proposed shot change detection algorithm, the detection rate of the GPU based parallel algorithm is the same as that of the CPU based algorithm, but the average of processing time speeds up about 6~8 times.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2006년도 하계종합학술대회
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• pp.933-934
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• 2006

High level perceptual tasks such as context understanding, SLAM and object recognition are essential for intelligent robot to provide services for human supports. Those intelligent robots often use camera sensor for vision information, sonar or laser sensor for range information, encoder for angular velocity of wheel and so on. The information is generated at different time intervals by the different H/W devices and S/W algorithms. The generation of high level information requires the specific mixture of low level information. And the information should be represented to be useful for robots to use in their ecological niche. In conventional robot systems, perceptual module requires the resource to use by tightly coupling whenever it is needed. So the resource and information cannot be easily shared and even could be invalid for the delayed information. In this paper, we propose a synchronization system of robot-centered information for context understanding. Our system represents information for the robot capacity and synchronizes the information that is asynchronously generated, where is employed the black-board architecture.

• 한국정보처리학회논문지
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• 제2권5호
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• pp.787-796
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• 1995

본 논문에서는 광디스크, 디지탈 테이프 등과 같은 제3의 저장 장치의 활용을 높 이기 위하여 다중의 디스크와 CD-ROM으로 구성된 저장구조를 제안하고, 이 구조에서 CD-ROM에 저장된 연속미디어 객체들을 효율적으로 표현하는 메카니즘을 설계한다. 본 논문에서는 제안한 연속미디어 저장 구조는 대역폭이 높은 SCSI 버스를 다중의 디스크 가 공유하여 데이타를 전송함으로써 정보의 검색 능력을 향상시킨다. 그리고 연속미디 어 표현 메카니즘은 CD-ROM의 연속미디어 객체의 인출과 표현을 병렬로 수행시켜 연속 미디어 표현의 불연속을 감소시킬 뿐만 아니라 자주 참조되는 객체를 디스크에 존재케 함으로써 재참조 요청에 대한 실기율과 서비스 시간의 변화를 최소화한다.

• 한국컴퓨터정보학회논문지
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• 제8권3호
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• pp.80-86
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• 2003

XML은 웹 상에서 정보를 전달하고 저장하는데 있어 가장 주목을 받고 있는 언어이다. XML로 표현된 정보는 의미가 부여됨으로서 보다 정확하고 빠른 검색을 제공한다. 반면에, XML 문서는 논리적으로는 유사하지만 구조적 측면에서 서로 다른 표현방식으로 작성됨으로 인해, 이 기종 시스템 및 장치를 갖는 문서처리 환경에서 문서를 교환하고 공유하는데 어려움이 있다. 이 논문에서는 객체 지향 클래스 다이어그램을 XML DTD로 변환하고, 동일 주제에 대해 서로 다른 구조로 작성된 XML DTD 문서를 효율적으로 관리하기 위한 구조 정보 표현과 인덱스 메카니즘을 설계하였다. 제안된 방법을 이용함으로써 특정 엘리먼트에 대한 효율적이고 빠른 검색을 지원할 수 있으며, 간단한 연산으로 엘리먼트에 접근을 용이하게 할 수 있는 효과가 기대된다.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2017년도 추계학술대회
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• pp.736-739
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• 2017

최근 거대한 생산 장비를 보유하지 않은 일반인이 디지털 제작 도구를 활용하여 생각했던 제품을 실제로 만드는 창작자인 메이커가 새로운 트렌드로 부상하고 있다. 이러한 메이커들이 제품을 만드는 방법을 공유하면서 오픈소스 제조업 운동인 '메이커 운동'이 확산되었다. 국내의 경우에도 정부의 정책적 지원을 통해 메이커 운동이 활성화 되고 있는 추세이다. 하지만 선진국에 비해 메이커 문화에 대한 인식과 환경이 미비하고, 메이커를 위한 특화된 교육/개발용 장비나 키드없이 오픈 플랫폼 하드웨어와 소트프웨어만을 이용하는 실정이다. 따라서 본 논문에서는 단순한 하드웨어 연결을 통한 데이터 확인이 아닌 실질적인 서비스 연동을 위한 MQTT 프로토콜 기반의 사물인터넷 메이커 키트를 구현한다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제13권3호
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• pp.1689-1701
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• 2019

In recent years, personal videos have been shared online due to the popular uses of portable devices, such as smartphones and action cameras. A recent report predicted that 80% of the Internet traffic will be video content by the year 2021. Several studies have been conducted on the detection of main video events to manage a large scale of videos. These studies show fairly good performance in certain genres. However, the methods used in previous studies have difficulty in detecting events of personal video. This is because the characteristics and genres of personal videos vary widely. In a research, we found that adding a dataset with the right perspective in the study improved performance. It has also been shown that performance improves depending on how you extract keyframes from the video. we selected frame segments that can represent video considering the characteristics of this personal video. In each frame segment, object, location, food and audio features were extracted, and representative vectors were generated through a CNN-based recurrent model and a fusion module. The proposed method showed mAP 78.4% performance through experiments using LSVC data.

• 대한한의학원전학회지
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• 제34권3호
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• pp.55-72
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• 2021

Objectives : This paper investigates the significance of the transmission ritual (TR) documented in the Huangdi Neijing (HN) and its effects on medicine pursued by HN's authors (medical bureaucrats). Methods : Descriptions of knowledge transmission and related ritual were identified from HN texts. They were compared with similar types of actions in ancient China, then historically reconstructed. They were also approached from the perspective of ritual studies. Results : It appears highly probable that TR in HN had actually been performed by the authors themselves, which shows characteristics of rites of passage. The participants accepted the in-group order based on patrimonial piety. TR consecrates the participants as well as its object, which is medical knowledge. Conclusions : In the field of TR, the participants shared not only a specific document or knowledge, but also their common experiences of medical perfection and sanctity. They constructed their noble group identity through TR. At the same time, TR inhibited arguments inside the group, in favor of one-way communication.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제33권2호
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• pp.41-47
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• 2022

Objectives: Humans experience the process of separating-individuating themselves from an object via the conflict between dependence and independence within the self. The separation-individuation theory focuses on the psychological process of individualizing oneself. Although adolescents' individuation from their parents is based on intrapsychic events, there is an increasing need for an intersubjective understanding of it. We applied intersubjectivity to adolescents and parents to interpret and find solutions for problems arising during their individuation process. Methods: This study retrospectively reviewed a case of a son and his father treated by the author. From the study subject, contents that represent adolescents and parents' interaction and separation in the individualization process were extracted and analyzed, and their experiences shared in this process were reconstructed from the therapist's perspective. Results: From the case involving an adolescent boy with conduct problems and his interactions with his father, the authors observed the phenomenon of intersubjectivity and proposed the concept of "synchronized individuation" between adolescents and parents. As adolescents rapidly grow and change, they experience various dynamic interactions with their parents. Through learning to tolerate the conflicts and ambivalent tension inherent in this individuation process, adolescents and their parents develop their new identity. Conclusion: "Synchronized individuation" should be understood as complementary to, rather than exclusive from, the existing concept of the separation and individuation. It offers a new paradigm with which to understand adolescent-parent conflicts in the process of separation-individuation.

• 인터넷정보학회논문지
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• 제24권6호
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• pp.81-89
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• 2023

현대사회에서 시각장애인들은 도보, 승강기, 횡단보도 등 일반적인 환경에서 보행을 하는데 어려움이 있다. 시각장애인의 불편 해소를 위한 연구로 영상이나 음성을 이용한 연구가 있으며, 이런 연구는 고비용의 웨어러블 장치, 고성능 CCTV, 음성 센서 등을 사용하여 실생활에 적용하는 데는 한계가 있다. 본 논문에서 시각장애인이 보행 중에 안전한 이동을 위해서 스마트폰에 포함된 저비용의 영상 센서를 활용하여 주변 도보 공간을 인지하는 인공지능 융합 알고리즘을 제안한다. 제안된 알고리즘은 이동 중인 사람 탐지를 위해서 모션 캡처 알고리즘과 장애물 탐지를 위한 객체 탐지 알고리즘을 융합하여 개발하였다. 모션 캡처 알고리즘으로 mediapipe을 사용하여 이동 중에 있는 주변 보행자들을 모델링 및 탐지하였다. 객체 탐지 알고리즘을 사용했으며 도보 중에 발생하는 다양한 장애물을 모델링 하였다. 실험을 통하여 인공지능 융합 알고리즘을 검증했으며, 정확도 0.92, 정밀도 0.91, 재현율 0.99. F1 score 0.95로 결과를 얻어서 알고리즘의 성능을 확인하였다. 본 연구로 보행 중에 발생하는 볼라드, 공유 킥보드, 자동차 등의 주변 장애물 및 이동 중인 보행자 회피하여 시각장애인들의 통행에 도움을 줄 수 있다.