• 한국식품조리과학회지
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• 제32권4호
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• pp.413-425
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• 2016

Purpose: This study was conducted to understand the factors that affect the acceptance of gluten-free rice pasta samples prepared with added buckwheat, mungbean, and acorn starches, and to compare sensory characteristics of samples with those of 100% semolina pasta. Methods: Descriptive analysis of pasta was conducted by 12 trained panels. Acceptance test was carried out by 40 consumers using 7-point hedonic scale. Collected data was statistically analyzed by principal component analysis, and partial least squares regression analysis. Results: Quantitative descriptive analysis showed that increasing amount of buckwheat, mungbean, and acorn starches resulted in significant improvement in gluten-free rice pasta properties, especially texture, hardness, chewiness, roughness, and al dente with increasing amount of sample starches, and decreased adhesiveness. In acceptance test, appearance and texture of gluten-free rice pasta with mungbean starch were preferred than pasta made with 100% rice. Flavor and taste was preferred in pasta with buckwheat starch than other pasta samples. Rice pasta with 30% buckwheat starch showed the highest score in overall acceptance among rice samples. Conclusion: This study suggested that adding mungbean starch could improve texture of gluten-free pasta, and adding buckwheat starch would improve taste and flavor of gluten-free rice pasta.

• 반도체디스플레이기술학회지
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• 제13권4호
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• pp.91-96
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• 2014

Mobile image retrieval is one of the most exciting and fastest growing research fields in the area of multimedia technology. As the amount of digital contents continues to grow users are experiencing increasing difficulty in finding specific images in their image libraries. This paper proposes a new efficient and effective mobile image retrieval method that applies a weighted combination of color and texture utilizing spatial-color and second order statistics. The system for mobile image searches runs in real-time on an iPhone and can easily be used to find a specific image. To evaluate the performance of the new method, we assessed the iPhone simulations performance in terms of average precision and recall using several image databases and compare the results with those obtained using existing methods. Experimental trials revealed that the proposed descriptor exhibited a significant improvement of over 13% in retrieval effectiveness, compared to the best of the other descriptors.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제13권7호
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• pp.3654-3670
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• 2019

This paper proposes an Image Texture Median Filter (ITMF) to analyze and detect Android malware on Drebin datasets. We design a model of "ITMF" combined with Image Processing of Median Filter (MF) to reflect the similarity of the malware binary file block. At the same time, using the MAEVS (Malware Activity Embedding in Vector Space) to reflect the potential dynamic activity of malware. In order to ensure the improvement of the classification accuracy, the above-mentioned features(ITMF feature and MAEVS feature)are studied to train Restricted Boltzmann Machine (RBM) and Back Propagation (BP). The experimental results show that the model has an average accuracy rate of 95.43% with few false alarms. to Android malicious code, which is significantly higher than 95.2% of without ITMF, 93.8% of shallow machine learning model SVM, 94.8% of KNN, 94.6% of ANN.

• 대한금속재료학회지
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• 제49권6호
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• pp.488-492
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• 2011

Heat-treatable Al-Mg-Si-Cu alloy sheets, which are expected to have a growing demand, were fabricated by Cross rolling to improve their formability. The mechanical properties and texture of the sheets after the final annealing process were investigated by a tensile test, EBSD and XRD analysis. The grain size of the cross-rolled sheets was remarkably decreased compared to conventional rolled sheets, and the R-value of the cross-rolled sheets was notably increased by about one and a half times that of the conventional rolled sheet. Cube{001}<100> and cubic system orientations were strongly developed in conventional rolled sheets. However, randomized textures were formed in the cross-rolled sheets without specific texture. It is thought that much shear deformation was induced during the cross rolling. The results show that the cross rolling method is effective for improving the R-value of aluminum alloys sheets and their grain refinement. As a result, it is considered that cross rolling is effective for improving formability.

• 한국축산식품학회지
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• 제43권1호
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• pp.1-9
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• 2023

The expansion and advancement of the meat product market have increased the demand for fermented sausages. A typical method for manufacturing high-quality fermented sausages is using a starter culture, which improves the taste, aroma, and texture. Currently, the starter culture for manufacturing fermented sausages is mainly composed of microorganisms such as lactic acid bacteria, yeast, and fungi, which generate volatile compounds by the oxidation of fatty acids. In addition, protein decomposition and changes in pH occur during the fermentation period. It can positively change the texture of the fermented sausage. In this review, we discuss the requirements (improving food safety, the safety of starter culture, enzyme activity, and color) of microorganisms used in starter cultures and the generation of flavor compounds (heptanal, octanal, nonanal, hexanal, 2-pentylfuran, 1-penten-3-ol, and 2-pentanone) from lipids. Furthermore, quality improvement (hardness and chewiness) due to texture changes after starter culture application during the manufacturing process are discussed.

• 대한화장품학회지
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• 제45권1호
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• pp.9-17
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• 2019

본 연구에서는 천연 보습인자의 구성 성분인 L-${\alpha}$-아미노산을 피부에 주기적으로 반복 도포하여 일반적으로 알려진 보습뿐 만 아니라 L-${\alpha}$-아미노산을 피부 톤과 결의 개선제로 활용하였다. L-${\alpha}$-아미노산의 알킬기(R)의 극성과 비극성에 따라 두 그룹으로 나누어 각질케어 효능을 확인하였다. 그 결과, 극성 알킬기를 갖는 L-${\alpha}$-아미노산 콤플렉스(L-${\alpha}$-아미노산-콤플렉스-1)가 비극성 알킬기를 갖는 L-${\alpha}$-아미노산 콤플렉스(L-${\alpha}$-아미노산-콤플렉스-2)에 비해 21% 향상된 효능을 나타내었다. 임상 실험을 위해 20 - 40대 11인의 여성에게 실험군으로서 L-${\alpha}$-아미노산 콤플렉스-1을 포함한 에멀전을 오른쪽 뺨에 8주간 매일 도포하고 대조군으로서 L-${\alpha}$-아미노산 콤플렉스-1를 포함하지 않은 에멀전을 왼쪽 뺨에 같은 방법으로 도포하였다. 피부 톤의 개선은 $JANUS^{(R)}$ 장비를 통해 측정하고 이미지분석 소프트웨어를 이용하여 분석하였으며, 피부 결의 개선은 phaseshift rapid in-vivo measurement of the skin (PRIMOS)장비를 이용하여 기기적으로 측정하고 분석하였다. 그 결과, 피부 톤 11.7%, 피부 결 6.7%의 개선을 확인하였다. 또한 피험자에게 심미적으로 느껴지는 개선에 대해 설문조사를 실시하여 피부개선의 체감도를 바탕으로 기기측정 결과를 통해 나타난 L-${\alpha}$-아미노산 도포의 효능을 평가하였다. 본 연구 결과를 통해, 약산성(pH 6.5)조건에서 피부 자극을 유발하지 않음과 동시에 생리학적인 개선을 통한 피부 톤과 결의 개선을 기대할 수 있으며, 화장품 소재로서 심미적 만족감을 줄 수 있는 물질로 L-${\alpha}$-아미노산이 활용될 수 있을 것이라 생각된다.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2006년도 하계종합학술대회
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• pp.317-318
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• 2006

There are lot of noises and errors in depth map image which is gotten by using a stereo camera. These errors are caused by mismatching of the corresponding points which occur in texture-less region of input images of stereo camera or occlusions. In this paper, we use a method which is able to get rid of the noises through post processing and reduce the errors of disparity values which are caused by the mismatching in the texture-less region of input images through the correlation between the depth map images and the input images. Then we propose a novel method which segments the object by using the improved disparity map images and projections.

• 한국식품조리과학회지
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• 제25권4호
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• pp.415-420
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• 2009

This study was undertaken to investigate the effect of Opuntia humifusa on the improvement of quality properties of Korean Jeolpyun. Chemical and mechanical properties of unsupplemented Jeolpyun and Jeolpyun supplemented with 1%-4% O. humifusa. Also, a sensory evaluation by a trained panel was conducted. Concerning color difference, the L value decreased, but a and b values increased as O. humifusa content increased. Texture analysis revealed that hardness, cohesiveness and adhesiveness were the highest in the unsupplemented control group. The texture parameters decreased as the O. humifusa addition ratio increased. In sensory evaluation, color and taste scores were highest score in 2% O. humifusa supplemented samples, with no difference in flavor being evident. Chewiness and adhesiveness scores were highest score in 4%-supplemented O. humifusa samples. Overall quality score was highest in the 2% O. humifusa samples. The addition of $2{\sim}3%$ O. humifusa optimizes Korean Jeolpyun.

• 한국해양바이오학회지
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• 제9권2호
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• pp.58-64
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• 2017

Polysaccharides are useful materials for keep skin moisturizing and skin improvement cosmetic materials. We have isolated polysaccharides form Gracilariopsis sp. The polysaccharide derived from Gracilariopsis sp. have various size of 300kDa, 500kDa and over 1,000kDa. The volunteers applied a cream formula with polysaccharides from Graciariopsis sp. for 4 weeks. We found significant improvement of wrinkles and skin texture. We also found an effect of improving skin elasticity. When the moisture reduction rate of the skin was 2.8% lower than the 5.1% of hyaluronic acid. The polysaccharide extract from Gracilariopsis sp. showed stable pH and viscosity. The polysaccharides derived from Gracilariopsis sp. could be used as a cosmetic material.

• 디지털정책학회지
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• 제3권1호
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• pp.27-32
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• 2024

본 논문은 초해상도 결과의 품질을 향상시키기 위해 질감 특징을 세분화하여 각각을 대조하고, 그 결과를 가중치로 이용하는 초해상도 방법을 제안하였다. 초해상도에서 중요한 평가 기준인 품질의 향상을 위해서는 경계 영역과 같은 세부사항에서의 정확하고 명확한 복원 결과가 필요하며, 인공물과 같은 불필요한 잡음을 최소화하는 것이 중요하다. 제안하는 방법은 품질 향상을 위해 기존 CNN(Convolutional Neural Network) 기반의 초해상도 방법에서 특징 추정을 위해 다중 경로의 잔차 블록 구조와 skip-connection을 구성하였다. 추가적인 질감 분석을 위한 선명 및 흐림 이미지 결과를 추가로 학습하였다. 이를 활용하여 초해상도 수행 결과 또한 각각을 대조하여 가중치를 할당하는 방법을 이용해 영상의 세부사항 영역과 평활화 영역에 대해 개선된 품질을 얻을 수 있도록 하였다. 제안하는 방법의 실험 결과 평가 기준으로 활용되는 PSNR과 SSIM 값이 기존 알고리즘 대비 높은 결과 값을 얻어 품질이 개선됨을 확인할 수 있었다.