• Proceedings of the IEEK Conference
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• 2003.11a
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• pp.77-80
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• 2003

본 논문에서는 디지털방송과 인터넷의 융합에 따른 MPEG-2/4/7 방송 및 인터넷 콘텐츠를 비롯한 게임등과 같은 다양한 멀티미디어 서비스를 제공하기 위한 차세대 지능형 고품질 홈 엔터테인먼트 시스템 Platform 개발에서 사용될 MPEG-4 오디오를 개발한다. 인터넷 상에서의 스트리밍 서비스를 위해서는 저 전송률과 고 품질의 비디오/오디오 알고리즘이 필요하다. 이러한 서비스를 제공하기 위하여 MPEG-4 오디오는 음성에서 고품질의 다중 채널의 오디오까지, 그리고 자연음(Natural Sound)에서 합성음에 이르기까지 다양한 알고리즘을 제공한다. 본 논문에서는 지능형 고품질 미디어 에이전트 시스템에 적합한 MPEG-4 AAC, MPEG-1 Layer-3인 MP3, G.723.1을 구현하고, 이 시스템에 알맞은 7㎑ 대역폭을 가지는 광대역(Wideband) 음성신호를 16kbps로 압축하는 음성 압축기를 제안 및 개발한다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2013.10a
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• pp.869-870
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• 2013

본 논문은 Ubiquitous Networking 기술을 기반으로 한 IT와 수산업과의 융합 서비스 기술을 지원하기 위해서 양식장의 지능형 유비쿼터스 시스템의 구축을 제안한다. 이 시스템은 어장의 원격 모니터링 및 관리, 스마트폰을 기반으로 어장의 이상 변화를 감지하고 SMS 등을 통해서 알림을 제공한다. 그리고 양식장 관리 정보 모니터링 및 제어 등을 통한 수산물 양식의 양식장 미생물 유지 및 최적 관리를 위한 유비쿼터스 기술과 양식장의 양식 관리 정보 공유 플랫폼을 개발한다. 따라서 양어장 내의 정보를 무선 센서를 통해 자동으로 수집하고, 수산물의 종류, 성장 단계, 기후 및 환경에 따라 각종 생장 조건을 최적으로 관리함으로써 각 수산물 재배에 최적화된 파라미터를 바탕으로 생장 및 품질을 예측하여 수산물의 생장 및 생산력을 극대화한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2024.05a
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• pp.707-708
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• 2024

최근 디지털 헬스케어 기술과 서비스가 널리 활용되면서 의료 인공지능 성능 향상에 대한 관심이 높아지고 있다. 그러나 양성 데이터 대비 질병 데이터가 희소하여 학습 과정에서 과적합이 발생하거나 질병 예측 모델의 성능이 떨어진다는 한계가 있다. 본 논문에서는 데이터가 균질하지 않은 상황에서 생성형 인공지능 모델을 사용하여 합성 데이터를 생성하는 방안을 제안한다. 실험 결과에 따르면, 종래 방법 대비 제안한 방법의 정확도가 약 5.8% 향상되었고, 재현율이 약 21% 개선되었다.

• Journal of the Korean Institute of Intelligent Systems
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• v.16 no.5
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• pp.544-549
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• 2006

This research is to introduce about Judgment System for Intelligent Movement(JSIM) that can perform assistance work of human brain. JSIM can order autonomous command and also it can be directly controlled by user. This research assumes that control object is limited to Mobile Robot(MR) Mobile robot offers image and ultrasonic sensor information to user carrying JSIM and it performs guide to user. JSIM having PDA and Sensor-box controls velocity and direction of the mobile robot by soft-computing method that inputs user's command and information that is obtained to mobile robot. Also it controls mobile robot to achieve various movement. This paper introduces wearable JSIM that communicates with around devices and that can do intelligent judgment. To verify the possibility of the proposed system, in real environment, the simulation of control and application problem lot mobile robot will be introduced. Intelligent algorithm in the proposed system is generated by mixed hierarchical fuzzy and neural network.

• Smart Media Journal
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• v.10 no.2
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• pp.92-99
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• 2021

Smart space is a technology that supports humans by interacting with the surrounding environment. Smart space has a built-in dynamic intelligent environment. This paper proposes a framework that provides user-customized dynamic intelligent environments in smart spaces. In the existing research that provides user-customized intelligent services, users' interests are only explicitly analyzed, and smart spaces are not considered. Implicit interest analysis can suggest a service that may be of interest to users rather than explicit interest analysis, but it requires higher performance than explicit interest analysis. Smart spaces can obtain useful information by interacting with information in the space. The framework proposed in the study uses a proximity-based social network of things to fit into a smart space. In addition, the implicit interest analysis provides intelligent information for smart spaces using the social media information and spatial information objects. In addition, we propose a method to prevent performance degradation while maintaining accuracy in consideration of the characteristics of the smart space.

• Journal of the Institute of Convergence Signal Processing
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• v.14 no.2
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• pp.124-129
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• 2013

Hexapod walking robots are superior to biped or quadruped ones in terms of walking stability. Therefore hexapod robots have the advantage in performing intelligent tasks based on walking stability. In this paper, we propose a hexapod robot that has one fore leg, one hind leg, two left legs, and two right legs and can perform various intelligent tasks. We build the robot by using 26 motors and implement a controller which consists of a host PC, a DSP main controller, an AVR auxiliary controller, and smart phone/pad. We show by several experiments that the implemented robot can perform various intelligent tasks such as uneven surface walking, tracking and kicking a ball, remote control and 3D monitoring by using data obtained from stereo camera, infrared sensors, ultra sound sensors, and contact sensors.

• Journal of the Korean Institute of Intelligent Systems
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• v.20 no.1
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• pp.48-53
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• 2010

In this paper, we develop the intelligent remote dust chamber bag control system which is combination of the advanced IT and traditional dust chamber based on event. At first, the message format is defined for the efficient dust chamber bag information transmission using power line communication. Also, we define the data types to logically model the dust chamber and the dust chamber bag, and they are logically modeled using XML and object-oriented modeling method. In addition to, we apply the case-based reasoning for showing the dust chamber bag exchange time intelligently to user at real-time using casebase, that is collected by case or case-based reasoning result, and that is described using XML.

• Journal of the Korea Convergence Society
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• v.1 no.1
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• pp.49-55
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• 2010

As the developing of the information communication technology, more and more devices are with the capacity of communication and networking. The convergence businesses which communicate with the devices have been developing rapidly. The IT convergence communication is viewed as one of the next frontiers in wireless communications. In this paper, we analyze detailed security threats against M2M(Machine to Machine), intelligent vehicle, smart grid and u-Healthcare in IT convergence architecture. We proposed a direction of the IT convergence security that imbedded system security, forensic security, user authentication and key management scheme.

• Proceedings of the Korean Society of Disaster Information Conference
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• 2023.11a
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• pp.204-206
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• 2023

본 연구는 현재 각 현장에서 사용되어지는 다양한 화재수신기의 DATA를 받기 위한 프로토콜 및 접점 포트 구현 및 통신3사(SKT, KT, LGU+)의 LPWA 모뎀을 통한 업링크 기능 또한 무선 업링크 전송 불가시 유선 업링크 기능을 구현하여, 어떠한 환경에서도 데이터를 서버로 전송할 수 있는 H/W 기술과 다양한 화재수신기의 Data를 수집/분석 전송할 수 있는 지능화한 S/W와 다양한 화재수신기의 데이터를 표준화하여 이를 적용한 펌웨어 고도화, 사용자 APP 및 UI를 개발하는데 목적이 있다.

• Journal of the Korea Convergence Society
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• v.12 no.11
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• pp.193-206
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• 2021

Artificial Intelligence (AI) has been inserted into people's lives through Intelligent Virtual Assistants (IVA), like Alexa. Moreover, intelligent systems have expanded to design studios. This research delves into designers' perspectives on developing AI-based practices and examines the challenges of adopting future intelligent design assistants. We surveyed UX/UI professionals in Brazil to understand how they use IVAs and AI design tools. We also explored a scenario featuring the use of Alexa Sensei, a hypothetical voice-controlled AI-based design assistant mixing Alexa and Adobe Sensei characteristics. The findings indicate respondents have had limited opportunities to work with AI, but they expect intelligent systems to improve the efficiency of the design process. Further, majority of the respondents predicted that they would be able to collaborate creatively with AI design systems. Although designers anticipated challenges in natural language interaction, those who already adopted IVAs were less resistant to the idea of working with Alexa Sensei as an AI design assistant.