• ETRI Journal
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• v.32 no.4
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• pp.626-629
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• 2010

In this letter, we present an enhanced block-based adaptive loop filter (E-BALF) with multiple filter symmetric structures. The E-BALF adapts various filter symmetric structures in a rate-distortion optimization sense, reflecting the statistical properties of each image in a video sequence. Experimental results show that the proposed method achieves a reduction in the Bj${\phi}$ntegaard delta (BD)-bitrate by an average of 9.60% compared with Joint Model 11.0 of H.264/AVC. Compared to the state-of-the-art BALF, a reduction of up to 1.13% in BD-bitrate is achieved.

• Proceedings of the Korea Information Processing Society Conference
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• 2014.04a
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• pp.5-7
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• 2014

일반적인 가상화 플랫폼에서는 가상화 소프트웨어가 소프트웨어적으로 에뮬레이션하여 제공하는 가상 I/O 장치들을 가상 플랫폼에서 사용한다. 소프트웨어 에뮬레이션 기반 I/O 장치들을 사용하는 가상 플랫폼들은 성능이 떨어지고 고사양의 응용 프로그램을 지원할 수 없는 문제점을 가지고 있다. 본 논문에서는 해당 문제점을 극복하기 위해 PCI 기반 하드웨어 장치들을 가상 플랫폼에 직접 할당하여 고품질의 가상 플랫폼을 제공하는 기술을 설계 및 구현한다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.18 no.7
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• pp.1953-1967
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• 2024

Lately, there has been a notable surge in the defense industry's efforts to develop highly advanced intelligent systems. These systems encompass sophisticated computing platforms that boast an impressive level of autonomy. However, it's important to acknowledge that these very systems are not impervious to vulnerabilities stemming from both hardware and software tampering. Within the context of this discourse, our focus of the survey is directed towards the hardware security module. This component stands out for its capability to offer a significantly heightened level of protection when compared to conventional software-based techniques. Through the lens of this paper, we embark on a comprehensive survey of Trusted Platform Module (TPM), a hardware security module, shedding light on its potential to fortify the defense against threats that emerge from various vectors of attack.

• ETRI Journal
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• v.26 no.3
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• pp.277-280
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• 2004

The distributions of electric field and induced second-order nonlinearity are analyzed in the periodic poling of optical fibers. A quasi-phase matching efficiency for the induced nonlinearity is calculated in terms of both the electrode separation distance between the applied voltage and generalized electrode width for the periodic poling. Our analysis of the quasi-phase matching efficiency implies that the conversion efficiency can be enhanced through adjusting the separation distance, and the electrode width can be maximized if the electrode width is optimized.

• ETRI Journal
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• v.26 no.3
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• pp.281-284
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• 2004

We demonstrate a new fabrication method for adjusting the temperature dependence of a polymeric arrayed-waveguide grating (AWG) on a Si substrate. A temperature-dependent wavelength shift of-0.1nm/$^{\circ}C$ in a polymeric AWG on a Si substrate is reduced of+0.1nm/$^{\circ}C$ by detaching part of the polymer film, including the grating channel region of the AWG, from the Si substrate while the other parts remain fixed on the substrate.

• Digital Contents
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• no.2 s.117
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• pp.98-102
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• 2003

한국전자통신연구원(ETRI) 3D 게임엔진 '드림3D'의 기술 이전료가 인하됐다. ETRI는 3D 게임엔진 '드림3D'의 기술 이전료를 당초 계약금 6000만원에 러닝로열티 2%를 받기로 했던 방침을 수정, 계약금 4000만원에 러닝로열티 1%로 하향 조정했다. ETRI는 이를 위해 기술이전 후 '드림3D' 개발진에 피드백을 전달, 3D 게임엔진 개선에 공헌할 것을 기술 이전료 인하조건으로 제시했다. '드림3D'는 정부가 세계적인 게임엔진을 개발, 저렴한 가격에 국내 업체에 공급함으로써 국내 게임개발 환경을 한 단계 끌어올린다는 목표 아래 ETRI 과제수행업체로 선정, 2년 만에 개발 완료한 '3D온라인 게임엔진'이다

• Proceedings of the International Microelectronics And Packaging Society Conference
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• 2006.10a
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• pp.255-267
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• 2006

LTCC Technology is very suitable for 60 GHz application $\blacksquare$ LTCC substrate shows low loss at 60 GHz. - low insertion and return losses $\blacksquare$ Microstrip or CBCPW line is sultable for transmission lines at 60 GHz. - low loss (0.1dB/mm) $\blacksquare$ Single ribbbon bonding is adequate for interconnection - simple - low loss (0.1dB/bonding) $\blacksquare$ Characteristics of MMIC module - Gain difference (${\Delta}S21$) : 0.4 dB

• ETRI Journal
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• v.29 no.3
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• pp.399-401
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• 2007

With a growing emphasis on human identification, iris recognition has recently received increasing attention. Iris recognition includes eye imaging, iris segmentation, verification, and so on. In this letter, we propose a novel and efficient iris recognition method which employs a cumulative-sum-based grey change analysis. Experimental results demonstrate that the proposed method can be used for human identification in efficient manner.

• Bulletin of the Korean Space Science Society
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• 1999.09a
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• pp.75-75
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• 1999

No Abstract, See Full Text

• Broadcasting and Media Magazine
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• v.15 no.4
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• pp.55-65
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• 2010

HEVC 표준화가 JCT-VC에서 진행되고 있으며, 2010년 4월 1차 회의와 2010년 7월 2차 회의를 거쳐, 2010년 10월 제3차 회의에서 WD(Working Draft)인 HM (HEVC Test Model)이 결정되었다. 본 고에서는 HM에 채택된 움직임 정보 부호화 관련 기술과 화면간 예측보간기술에 대해 설명한다.