• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2002년도 하계종합학술대회 논문집(4)
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• pp.5-8
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• 2002

The paper handles a skin tone enhancement within digitalized images, which is based on human favorite skin color. To archive a human-favorite skin tone area, lots of observers are participated in visual experiments. The statistical result of the visual experiment was reflected in a proposed skin tone enhancement algorithm and gives more reasonable human-friendly skin color reproduction on a display device. This research was accomplished to implement in our DTV related application.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제10권2호
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• pp.837-856
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• 2016

Underwater image enhancement has received considerable attention in last decades, due to the nature of poor visibility and low contrast of underwater images. In this paper, we propose a new automatic underwater image enhancement algorithm, which combines nonsubsampled contourlet transform (NSCT) domain enhancement techniques with the mechanism of the human visual system (HVS). We apply the multiscale retinex algorithm based on the HVS into NSCT domain in order to eliminate the non-uniform illumination, and adopt the threshold denoising technique to suppress underwater noise. Our proposed algorithm incorporates the luminance masking and contrast masking characteristics of the HVS into NSCT domain to yield the new HVS-based NSCT. Moreover, we define two nonlinear mapping functions. The first one is used to manipulate the HVS-based NSCT contrast coefficients to enhance the edges. The second one is a gain function which modifies the lowpass subband coefficients to adjust the global dynamic range. As a result, our algorithm can achieve contrast enhancement, image denoising and edge sharpening automatically and simultaneously. Experimental results illustrate that our proposed algorithm has better enhancement performance than state-of-the-art algorithms both in subjective evaluation and quantitative assessment. In addition, our algorithm can automatically achieve underwater image enhancement without any parameter tuning.

• 한국생활과학회지
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• 제23권2호
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• pp.281-292
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• 2014

This study was designed to examine the influence of gratitude enhancement program on preschoolers' aggression perceived by their teacher and mother. The subjects in this study were 40 four-year-old children in kindergarten in U city. This study employed a pre/post-test control group design, and so all subjects were assigned to an experimental group(gratitude enhancement program) or comparative group(general education program according to the year curriculum). Preschoolers' aggression was measured by the teacher and mother of the subjects and the collected data were analyzed by independent and paired t-test. This study also computed Cohen's d to estimate effect size of gratitude enhancement program on preschoolers' aggression. The findings of this study were as follows. Firstly, gratitude enhancement program and general education program were all effective in reducing preschoolers' aggression(aggression against things, verbal aggression and total aggression) perceived by their teacher except of aggression against others. But gratitude enhancement program was more effective than general education program in reducing these sort of aggression. Meanwhile, only gratitude enhancement program was effective in reducing preschoolers' aggression against others. Secondly, gratitude enhancement program was effective in reducing preschoolers' aggression(aggression against things, aggression against others, verbal aggression and total aggression).

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2002년도 하계종합학술대회 논문집(4)
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• pp.397-400
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• 2002

This paper has been studied speech enhancement method in noisy environment. By mean of that we prefer human auditory mechanism which is perfect system and applied wavelet transform. Multi-resolution of wavelet transform make possible multiband spectrum analysis like human ears. This method was verified very effective way in noisy speech enhancement.

• The Journal of the Acoustical Society of Korea
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• 제23권2E호
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• pp.56-67
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• 2004

Despite abundant research outcomes of blind source separation (BSS) in many types of simulated environments, their performances are still not satisfactory to be applied to the real environments. The major obstacle may seem the finite filter length of the assumed mixing model and the nonlinear sensor noises. This paper presents a two-step speech enhancement method with multiple microphone inputs. The first step performs a frequency-domain BSS algorithm to produce multiple outputs without any prior knowledge of the mixed source signals. The second step further removes the remaining cross-channel interference by a spectral cancellation approach using a probabilistic source absence/presence detection technique. The desired primary source is detected every frame of the signal, and the secondary source is estimated in the power spectral domain using the other BSS output as a reference interfering source. Then the estimated secondary source is subtracted to reduce the cross-channel interference. Our experimental results show good separation enhancement performances on the real recordings of speech and music signals compared to the conventional BSS methods.

• 한국생활과학회지
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• 제22권4호
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• pp.575-591
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• 2013

In this paper the relationship of various types of work-family interaction (i.e. work-family conflict, and work-family enhancement) with individual, family, and employment characteristics was explored in a sample of 1000 married employed women with preschool children. By using cluster analysis, we tried to reveal whether specific combinations of the various dimensions of work-family interaction (WFI) exist. Our results showed that employed women did not simply experience work-family conflict or work-family enhancement, but that they should be classified in four distinct clusters: (1) 189 employed women experienced primarily work-family enhancement(i.e. positive WFI); (2) 289 employed women experienced primarily work-family conflict(i. e. negative WFI); (3) 338 employed women experienced work-family conflict and work-family enhancement simultaneously(i. e. both positive and negative WIF); (4) 184 employed women did not experience either work-family conflict or work-family enhancement(i. e. low WFI). Results further showed that the emerging WFI-clusters appeared to have distinct profiles with respect to individual, family and employment characteristics.

• 한국생활과학회지
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• 제14권2호
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• pp.241-250
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• 2005

The purpose of this study is to develop a marital enhancement program based on reality therapy. The program consists of 8 session contents: program orientation, need strength profile between husband and wife, quality world and marital life, perception about marital life, comparison between quality world and perceived world, total behavior in marital life, communication between husband and wife, integration and application. This study mainly focuses on applying counseling theory (choice theory and reality therapy) to family life education for enhancing a conjugal relationship. In this way, participants of Marital Enhancement Program can experience a therapeutic effect as well as an educational effect.

• 제어로봇시스템학회논문지
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• 제20권3호
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• pp.364-371
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• 2014

The purpose of this paper is to review recent developments in lower limb exoskeletons. The exoskeleton system is a human-robot cooperation system that enhances the performance of the wearer in various environments while the human operator is in charge of the position control, contextual perception, and motion signal generation through the robot's artificial intelligence. This system is in the form of a mechanical structure that is combined to the exterior of a human body to improve the muscular power of the wearer. This paper is followed by an overview of the development history of exoskeleton systems and their three main applications in military/industrial field, medical/rehabilitation field and social welfare field. Besides the key technologies in exoskeleton systems, the research is presented from several viewpoints of the exoskeleton mechanism, human-robot interface and human-robot cooperation control.

• 철학연구
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• 제146권
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• pp.271-307
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• 2018

본 연구는 트랜스휴머니즘 도덕교육의 방향을 찾아보고자 한다. 신경과학이나 공학과 같은 과학기술의 성과를 최대한 활용하여 인간생명의 트랜스휴먼적 향상을 도모하는 방식에는 유전자 조작 방안, 도덕적 인공지능을 활용하는 사이보그 방안, 약리학적 방안이 있겠다. 하지만 본 연구에서는 유전자 조작 방안과 도덕적 인공지능을 활용하는 사이보그 방안을 중심으로 살펴보았다. 그리고 도덕적 인공지능을 활용한 사이보그 방안을 지속적으로 추구될 수 있는 실현성 있는 방안으로 보았다. 반면에 트랜스휴머니스트들이 기존의 전통적 도덕교육이 너무 느리고 비효과적이라고 보지만 유전자 조작 보다는 후성 유전학에 근거한 최상의 양육과 교육이 지금의 기술적인 제약 하에서는 오히려 효과적인 접근임을 알 수 있었다. 또한 연구자는 트랜스휴먼의 방향에 관한 논의에서 장기적으로 유전자 조작방안보다는 도덕적 인공지능이나 사이보그 방안이 윤리학적 문제점과 기술적 어려움을 보다 잘 극복할 수 있다고 판단한다. 따라서 논문에서 이 방안이 도덕교육의 모델로 적합할 수 있음을 제시하였다. 연구자는 트랜스휴머니즘의 인간향상에 관한 도덕성 논쟁에서 주로 공리주의적 차원에서 우리가 얻게 될 잠재적 이득을 중심으로 논의하고자 하였다. 특히 연구자는 트랜스휴머니즘과 관련하여 새로이 개발되는 기술의 잠재적 위험성을 줄이면서 그 기술이 목표로 하는 정당성과 효율성을 택하는 방식으로 진행되어야 한다고 강조하였다. 물론 사회적으로는 도덕적 인간향상의 윤리적 사용과 관련된 윤리학적 숙고와 법령 마련, 교육적으로는 인간의 도덕적 향상의 윤리 문제에 보다 추가적인 논의가 필요하겠지만 도덕적 인간향상의 방식을 근본적으로 부정하는 것은 대안이 아님을 제시하였다. 결국 트랜스휴머니즘의 시대에 다양한 도덕교육의 방식은 열려져 있으며, 이런 방안들을 꼼꼼하게 검토하고 지혜롭게 이를 적용해 나가야 하는 과제가 우리 앞에 놓여 있다고 할 수 있다.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권1호
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• pp.1035-1038
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• 2007

In this paper, we propose a color image improvement method. The proposed algorithms are classified with the adaptive contrast stretching method for contrast enhancement and the adaptive saturation enhancement method for saturation enhancement. The adaptive contrast stretching method is to compensate a significant change of brightness while luminance is processed. The adaptive saturation enhancement method inhibits its saturation from de-saturation and oversaturation while chrominance is processed. The proposed algorithms are focused on a preference color processing in order to generate better image quality than the algorithms focused on a uniform color processing for human vision.