• 한국통신학회논문지
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• 제28권10A호
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• pp.853-858
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• 2003

EUROCOM 통신시스템에서는 전송속도에 따라 프레임 구조가 정의되어 있으며, 각각의 프레임에는 동기 신호인 Frame Alignment Signal(FAS)을 포함하고 있다. 본 논문에서는 수신 프레임에서 동기 검출을 위한 FAS 검출기를 제안하고, 프레임 안의 동기 위치를 알지 못해도 채널 변경을 통해 전체 프레임 안에서 동기 채널이 있는지를 찾아 동기획득 상태를 판정할 수 있는 새로운 동기이탈 검출 방법을 제시한다.

• 한국컴퓨터정보학회논문지
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• 제24권1호
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• pp.231-238
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• 2019

The objective of this study is to understand the relationship between type of advertising and brand attachment. We divide advertising frame into loss and gain frame and examine the effect on brand attachment, The effect of unique advertising on brand attachment and the effects of interaction effects on brand attachment were examined. The results showed that the effect of the loss and gain frame on brand attachment was statistically significant. It also showed that unique advertising had positive effect on brand attachment. Moreover, the interaction effects of the advertising frame and the uniqueness of advertising have been shown to affect brand attachment. That is, the more emphasis on gain in advertising frame and the more unique advertising, the more effective on brand attachment.

• Korean Journal of Mathematics
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• 제30권1호
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• pp.91-107
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• 2022

Controlled frames have been the subject of interest because of their ability to improve the numerical efficiency of iterative algorithms for inverting the frame operator. In this paper, we introduce the notion of controlled K-frame or controlled operator frame in Hilbert C^*-modules. We establish the equivalent condition for controlled K-frame. We investigate some operator theoretic characterizations of controlled K-frames and controlled Bessel sequences. Moreover, we establish the relationship between the K-frames and controlled K-frames. We also investigate the invariance of a controlled K-frame under a suitable map T. At the end, we prove a perturbation result for controlled K-frame.

• Journal of information and communication convergence engineering
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• 제9권2호
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• pp.201-206
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• 2011

FRUC (Frame Rate Up-Conversion) technique needs an effective frame interpolation algorithm using motion information between adjacent neighboring frames. In order to have good visual qualities in the interpolated frames, it is necessary to develop an effective detection and interpolation algorithms for occluded regions. For this aim, this paper proposes an effective occluded region detection algorithm through the adaptive forward and backward motion searches and also by introducing the minimum value of normalized cross-correlation coefficient (NCCC). That is, the proposed scheme looks for the location with the minimum sum of absolute differences (SAD) and this value is compared to that of the location with the maximum value of NCCC based on the statistics of those relations. And, these results are compared with the size of motion vector and then the proposed algorithm decides whether the given block is the occluded region or not. Furthermore, once the occluded regions are classified, then this paper proposes an adaptive interpolation algorithm for occluded regions, which still exist in the merged frame, by using the neighboring pixel information and the available data in the occluded block. Computer simulations show that the proposed algorithm can effectively classify the occluded region, compared to the conventional SAD-based method and the performance of the proposed interpolation algorithm has better PSNR than the conventional algorithms.

• 한국언어정보학회:학술대회논문집
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• 한국언어정보학회 2007년도 정기학술대회
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• pp.192-201
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• 2007

This paper is a study on constructing a natural language interface to database, concentrating on generating textual answers. TGEN, a system that generates textual answer from query result tables is presented. The TGEN architecture guarantees its portability across domains. A combination of a frame-based approach and natural language generation techniques in the TGEN provides text fluency and text flexibility. The implementation result shows that this approach is feasible while a deep NLG approach is still far to be reached.

• 한국컴퓨터정보학회논문지
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• 제18권6호
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• pp.55-61
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• 2013

성폭력은 강간, 강제 추행, 성희롱, 도촬 등 상대방의 의사에 반하여 성적 자기 결정권을 침해하는 모든 신체적 정신적 폭력을 말한다. 남성이 가해자이고 여성이 피해자인 경우가 많은 범죄 행위 중 하나이다. 그 중에서 성폭력의 하나인 성추행은 강제추행을 뜻한다. 본 논문에서는 승강기 내에서 여성의 성 추행 사건을 평균 명암 측정을 통하여 추출하도록 한다. 각 픽셀은 RGB의 3개의 컬러 구성요소를 가질 경우의 컬러 프레임을 고려했다. 현재 프레임과 다음 프레임 사이의 절대 차이의 평균은 현재 프레임과 이전 프레임 사이의 절대 차이로 나눠진다. 하지만, 이전 장면 전환 쌍 사이에 차이가 있다면 장면 전환 검출 나타내는 불연속 값이 상대적으로 작을 수 있다. 따라서 식을 재정의 하여 사용하고 재정의 한 알고리즘이 훨씬 더 우수함을 실험을 통해 알 수 있다.

• 대한인간공학회지
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• 제28권4호
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• pp.61-69
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• 2009

With increasing needs for affective design, it became an essential part in a product development process to look up quantitative ergonomic data that reflects customers' preferences on design factors in various products. This study looked at wide LCD monitors and analyzed customers' affective preferences regarding monitor's bezel frame size and shape. The monitor's bezel frame depth, size and ratio were selected as independent variables among many design parameters. As dependent variables, customer's subjective preferences were measured. A statistical analysis revealed that monitor's bezel frame depth, size and ratio had significant effects on customer's preferences. Also, it was possible to find a different tendency on affective variables and their levels for 19" and 24" wide LCD monitors. In general, experiments revealed that customers reacted more sensitively in 24" wide LCD monitors to all variables. In 19" wide LCD monitors, only the lower frame bezel size had a significant effect, otherwise, lower, upper and side frame bezels appeared to be effective variables in 24" monitors. In order to reflect customer's affective preferences to new design of wide LCD monitors, this study is expected to provide quantitative ergonomic data and guidelines for the design of wide LCD monitor's bezel frame depth and size.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제6권1호
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• pp.426-445
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• 2012

Conventional rate control (RC) schemes for H.264 video coding usually regulate output bit rate to match channel bandwidth by adjusting quantization parameter (QP) at fixed full frame rate, and the passive frame skipping to avoid buffer overflow usually occurs when scene changes or high motions exist in video sequences especially at low bit rate, which degrades spatial-temporal quality and causes jerky effect. In this paper, an active content adaptive frame skipping scheme is proposed instead of passive methods, which skips subjectively trivial frames by structural similarity (SSIM) measurement between the original frame and the interpolated frame via motion vector (MV) copy scheme. The saved bits from skipped frames are allocated to coded key ones to enhance their spatial quality, and the skipped frames are well recovered based on MV copy scheme from adjacent key ones at the decoder side to maintain constant frame rate. Experimental results show that the proposed active SSIM-based frameskip scheme acquires better and more consistent spatial-temporal quality both in objective (PSNR) and subjective (SSIM) sense with low complexity compared to classic fixed frame rate control method JVT-G012 and prior objective metric based frameskip method.

• 한국언론정보학보
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• 제71권
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• pp.274-298
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• 2015

이 연구는 프레임 개념과 편향성 개념을 통합적으로 연결해 재난 사고 뉴스의 정치사회적 의미를 해석했다. 국내 언론이 세월호 침몰 사고라는 특수한 재난 사고의 문제 정의, 원인 해석, 도덕적 평가, 그리고 사후 처방을 제시하는 과정에 어떤 프레임을 더 편향되게 배치했는지를 이론적으로 검정해 보았다. 또한 프레임의 편향성이 정치적 이념을 달리하는 보수 신문과 진보 신문 간에 어떤 차이가 있는지 비교 분석해 보았다. 내용 분석 결과를 제시하면 다음과 같다. 첫째, 세월호 사고 진단 프레임에서는 전체적으로 파편화>개인화>권위무질서>극화의 순으로 편향되어 있었다. <조선일보>는 파편화 편향성이, 한겨레는 권위무질서 편향성이 상대적으로 컸다. 둘째, 사고 평가에서는 책임 프레임>도덕적 프레임>문제 해결 프레임>사고 원인 프레임의 순으로 편향되어 나타났다. <조선일보>는 책임 프레임, 도덕적 프레임 편향적으로 사고를 평가했다. <한겨레>는 책임 프레임, 문제 해결 프레임 편향성이 두드러졌다. 셋째, 책임 소재 프레임에서는 정부>개인>조직의 순으로 편향되어 제시됐다. <조선일보>는 정부와 개인의 책임 편향성을 드러낸 반면에, <한겨레>는 상대적으로 정부에 책임을 더 강조하면서 조직에 대한 책임 편향성도 보였다. 넷째, 문제 해결 프레임에서는 전체적으로 주제적 프레임과 일화적 프레임 편향성이 엇비슷한 수준으로 나타났다. <조선일보>는 일화적 프레임으로, <한겨레>는 주제적 프레임으로 더 편향화하는 차이를 보였다. 세월호 사고의 평가와 해석에 대한 언론의 프레임 편향성과 함께 이념적 차이에 따른 언론 간의 편향성 차이를 사회적 맥락 차원에서 토론했다.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2005년도 추계학술발표대회 및 정기총회
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• pp.973-976
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• 2005

In IEEE 802.15.4 (Low-Rate Wireless Personal Area Network) specification, a successful reception and validation of a data or MAC command frame can be confirmed with an acknowledgment. However, the specification does not support security for acknowledgment frame; the lack of a MAC covering acknowledgments allows an adversary to forge an acknowledgment for any frame. This paper proposes an identity authentication mechanism at the link layer for acknowledgment frame in IEEE 802.15.4 network. With the proposed mechanism there is only three bits for authentication, which can greatly reduce overhead. The encrypted bit stream for identity authentication will be transmitted to device by coordinator within association process. Statistical method indicates that our mechanism is successful in handling MAC layer attack.