• Solar Energy
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• v.18 no.1
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• pp.35-43
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• 1998

In two terminals monolithic tandem solar cells, tunnel diode is an important variable to improve conversion efficiency depending on current matching between the top and the bottom cells. Especially, the GaAs/Ge tandem is one of the most interesting cells for its high potential efficiency. This paper shows that physical analysis about I-V specific character of the GaAs/Ge solar cell, which is grown by MOCVD for GaAs or CVD for Ge, using computer simulation and experimental results, varying with thickness of the tunnel diode layer and concentration.

• Journal of the Korean Society of Industry Convergence
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• v.3 no.3
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• pp.229-236
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• 2000

This paper proposes on the Hanguel character CAI system using image processing. For this, firstly, the characters written by elementary school students or foreigners arc captured by CCD camera. Secondly, Recognition is accomplished by pre-processing, thinning and recognition processes. Thirdly, strokes are separated and beauty evaluation is done by matching feature value of the input image from the similarity measure function. In particular, this paper describe to define the similarity measuring function using extracted factor values after getting the beauty evaluation factor values of the consonant in the entire CAI system. Finally, the effectiveness of the proposed system is demonstrated by experiments.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.8 no.1
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• pp.213-219
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• 2004

This paper proposes speaker recognition algorithm which includes the pitch parameter for the peak and valley. The time-frequency hybrid method for pitch extraction is valuable in that it can improve resolution in the time domain and accuracy in the frequency domain at the same time. It makes reference pattern using membership function and performs vocal track recognition of common character using fuzzy pattern matching in order to include time variation width for non-linear utterance for proposed method, speaker recognition experiments are carried out using vowels and number sounds.

• Journal of the Korean Society of Food Culture
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• v.20 no.2
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• pp.261-272
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• 2005

The color and its coordination should intensify the customer's memory and awareness in a brand website, through the consistent communication strategy by which a variety of brand identification in the offline could be expressed efficiently. We evaluated top 5 brand-valuable family restaurants in this study, how they made the best use of the website as a new communication channel, and how they constructed the brand identification by the coloring of a website. We found out that they employed colors with a dynamic and lilting feelings matching the concept of a family restaurant. In addition, A color scheme was well designed for the specific character of a brand, though web-safe colors were seldom employed. This report can be a guide to a corporation for the color and its coordination in the website, when existing brand images need to be intensified and enhanced, or when a new brand image need to be constructed.

• 한국HCI학회:학술대회논문집
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• 2007.02c
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• pp.176-182
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• 2007

본 연구에서는 사용자가 즉석에서 연주한 곡에 대응하는 춤 동작을 자동으로 생성하는 기술을 제안한다. 본 기법은 먼저 댄서로부터 모션 캡쳐 받은 춤 시퀀스를 분절화한 후 사용자가 신디사이저를 통해 직접 연주하여 얻은 MIDI 데이터를 분석해 음악에서의 특징점을 추출한다. 그리고 분절화 한 모션의 세그먼트들을 음악에 맞춰 다시 배열하여 새로운 춤 시퀀스를 생성함으로써 사용자가 연주한 음악과 어울리는 춤 동작을 자동으로 생성한다. 이를 위해 세 단계의 작업을 수행하게 되는데, 첫 번째 단계에서 모션 캡쳐를 통해 얻게 된 데이터에서 캐릭터의 위치와 자세를 기준으로 하여 긴 시퀀스를 의미 있는 작은 춤 동작으로 분절화한다. 두 번째 단계에서는 사용자의 연주를 통해 획득한 MIDI를 분석하여 특징점을 추출하고, 마지막 단계에서는 이를 바탕으로 음악에 기반한 음악과 동작을 합성한다. 본 연구는 음악과 댄스의 리듬감이 파괴되지 않도록 합성함으로써 우리의 연구는 기존 연구에 비해서 훨씬 자연스러운 춤 시퀀스를 결과물로 만들어 낸다.

• The Transactions of the Korea Information Processing Society
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• v.6 no.5
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• pp.1410-1417
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• 1999

In this paper, we propose the method of extracting the caption regions from news video and the method of recognizing the captions that can be used mainly for content-based indexing and retrieving the MPEG-2 compressed news for NOD(News On Demand). The proposed method can reduce the searching time on detecting caption frames with minimum MPEG-2 decoding, and effectively eliminate the noise in caption regions by deliberately devised preprocessing. Because the kind of fonts that are used for captions is not various in the news video, an enhanced template matching method is used for recognizing characters. We could obtain good recognition result in the experiment of sports news video by the proposed methods.

• The Transactions of the Korea Information Processing Society
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• v.6 no.2
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• pp.522-533
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• 1999

This paper proposes speaker recognition algorithm which includes both the pitch parameter and the fuzzy inference. This study proposes a pitch detection method PVPF(peak and valley pitch detection fuction) by means of comparing spectra which utilizes the transform characteristics between time and frequency. In this paper, makes reference pattern using membership function and performs vocal tract recognition of common character using fuzzy pattern matching in order to include time variation width for non-linear utterance time.

• Annual Conference of KIPS
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• 2015.04a
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• pp.859-861
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• 2015

생산 기술이 발전함에 따라 제품의 생산량이 증가하고 컴퓨터 비전을 통한 제품의 양/불 판단 기술의 필요성이 증가하고 있다. 제품의 양/불 판단은 그 정확도가 중요하며, 동시에 빠른 검사를 위한 신속성이 요구된다. 기존 연구들에서 다양한 금속성 제품에 대한 양/불 판단과 각인된 글자에 대한 양/불 판단을 수행하는 연구가 지속되어 왔으나 자동차 에어백 부품 중 하나인 Upper Housing의 양/불을 판단하는 알고리즘은 부재하다. 본 논문에서는 Upper Housing에 대해 각인 문자의 양/불을 판정하는 알고리즘을 제안한다. 먼저 영상에서 기준점이 되는 원을 찾는 것부터 시작하여, 기준점을 기반으로 특정 각도로 회전시켜 미리 수집한 글자 이미지와의 템플릿 매칭을 통해 글자가 제대로 각인 되었는지를 판단한다. 실험에서는 에어백 부품에 대한 검사 장치에서 촬영한 동영상에 대하여 제안한 알고리즘을 적용하였고, 그 결과 높은 정확도로 글자를 검출할 수 있음을 확인하였다.

• Journal of the Korea Society of Computer and Information
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• v.7 no.3
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• pp.49-55
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• 2002

This paper proposes speaker recognition algorithm which includes both the pitch parameter and the fuzzy. This study proposes a pitch detection method for the peak and valley pitch detection function by means of comparing spectra which utilizes the transform characteristics between time and frequency. It measures the similarity to the original spectrum while arbitrarily varying the period in the time domain. It heavily weights the error due to the changing characteristics of the phonemes, while it is strong against noise. In this paper, makes reference pattern using membership function and performs vocal track recognition of common character using fuzzy pattern matching in odor to include time variation width for non-linear utterance time.

• Journal of the Korea Society of Computer and Information
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• v.5 no.3
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• pp.51-57
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• 2000

This paper proposes speaker recognition algorithm which includes both the pitch and the fuzzy. This study proposes a pitch detection method for the peak and valley pitch detection function by means of comparing spectra which utilizes the transform characteristics between time and frequency. It measures the similarity to the original spectrum while arbitrarily varying the period in the time domain. It heavily weights the error due to the changing characteristics of the phonemes, while it is strong against noise. In this paper, makes reference pattern using membership function and performs vocal track recognition of common character using fuzzy pattern matching in order to include time variation width for non-linear utterance time.