• 한국멀티미디어학회논문지
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• 제19권4호
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• pp.736-746
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• 2016

In this paper, we propose an automatic prostate cancer detection method using position, signal intensity and texture feature based on SVM in multi-parametric MR images. First, to align the prostate on DWI and ADC map to T2wMR, the transformation parameters of DWI are estimated by normalized mutual information-based rigid registration. Then, to normalize the signal intensity range among inter-patient images, histogram stretching is performed. Second, to detect prostate cancer areas in T2wMR, SVM classification with position, signal intensity and texture features was performed on T2wMR, DWI and ADC map. Our feature classification using multi-parametric MR imaging can improve the prostate cancer detection rate on T2wMR.

• Applied Biological Chemistry
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• 제34권4호
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• pp.353-359
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• 1991

대두단백 섬유의 texture 분석을 위한 도구로서, 그들의 미세구조를 관찰하였다. 미세구조와 texture profile analysis 결과, 대두단백 섬유의 구조를 유지 및 결정하는 인자중 disulfide 결합과 수소결합이 가장 중요한 인자중의 하나임을 확인하였다. 이와함께 대두단백 섬유의 원료물질인 대두단백질 수화물과 dope의 미세구조도 관찰하였다.

• 한국식품조리과학회지
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• 제19권1호
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• pp.11-16
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• 2003

막걸리와 물의 첨가비율에 따른 증편의 기계적, 관능적 품질특성을 0, 1, 2, 3 및 4일간 저장하면서 평가하였다. 증편의 높이와 부피는 1:2 시료가 가장 높아 발효가 잘 된 것으로 나타났고 물성특성의 경우 막걸리와 물의 첨가비율과 저장기간에 의해 시료간에 유의적인 차이를 보여, 물 비율의 증가와 저장기간의 증가에 따라 그 값이 증가하는 경향으로 증편이 단단하게 경화되는 것으로 나타났다. 기계적 색도의 경우 물의 비율기 증가할수록 증편의 명도는 증가하였고 저장기간에 따라 감소하였다. a값, b값은 물의 비율이 증가할수록 감소하였고 저장에 따라 증가하다가 감소하는 것으로 나타났다. 관능적 품질의 경우 관능검사 결과 중편의 막걸리와 물의 첨가비율이 1:2인 시료가 가장 관능적 특성이 큰 것으로 나타났다.

• Journal of Biosystems Engineering
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• 제22권4호
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• pp.433-438
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• 1997

The freshness of apple was evaluated by characterizing the surface texture of flesh cells. The freshness index which was related to the amount of wrinkles on the cell surface was defined to quantify the freshness. Four parameters relevant to the amount of the cell wrinkles were selected and measured using image analysis including wrinkle extraction procedure and Fast Fourier Transform of a wrinkle-extracted image. Out of 4 parameters, three parameters had highly significant correlations with the time elapsed after harvest. But it was concluded that two parameters out of such 3 parameters could be used for description of freshness index.

• 소성∙가공
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• 제13권4호
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• pp.382-387
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• 2004

The continuous confined strip shearing (CCSS) based on the equal channel angular pressing (ECAP) was modeled by means of a rigid-plastic two-dimensional finite element method (FEM). Parallel to the simulations, samples of AA 1050 sheets were experimentally deformed by CCSS. The CCSS deformation led to the formation of through thickness texture gradients comprising a strong shear texture in the sheet center and weak shear textures in the sheet surfaces. FEM analysis revealed variations in the strain component $\varepsilon_13$ along the sample thickness direction, which gave rise to the evolution of different textures. A high friction between the sample and die surface was responsible for lowering intensities of the shear texture components in thickness layers close to the surfaces.

• 한국정밀공학회지
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• 제15권5호
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• pp.167-175
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• 1998

A mathematical formulation is presented to model anisotropy from the deformation textures developed in a forming process. In this work, a micro-mechanical-based polycrystalline analysis is implemented into a consistent finite element method for the anisotropic, viscoplastic deformation of polycrystalline metals. As suggested by Taylor, the deformation of each grain in an aggregate is assumed to be same as the macroscopic deformation of an aggregate or a macro-continuum point. Algorithms are developed to represent the plastic anisotropy, such as the anisotropic yield surface and R-value, from the predicted deformation texture. As applications, the evolution of texture in rolling, upsetting and drawing/extrusion processes are simulated and the corresponding changes of mechanical properties such as yield surface and R-value are predicted.

• 한국생산제조학회지
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• 제23권2호
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• pp.118-126
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• 2014

In this paper, a new method is proposed for the five-degree-of-freedom precision alignment and stitching of three-dimensional surface-profile data sets. The control parameters for correcting thealignment error are calculated from the surface profile data for overlapped areas among the adjacent measuring areas by using the "least squares method" and "maximum lag position of cross correlation function." To ensure the alignment and stitching reliability, the relationships betweenthe alignment uncertainty, overlapped area, and signal-to-noise level of the measured profile data are investigated. Based on the results of this uncertainty analysis, an appropriate size is proposed for the overlapped area according to the specimen's surface texture and noise level.

• Journal of Pharmaceutical Investigation
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• 제31권1호
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• pp.13-18
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• 2001

This study was to investigate the relationship between the gel layer thickness and swelling boundary via strength measurements using texture analysis. The novel texture analysis approach was used to examine the dynamics of swelling behavior in a ternary polymeric matrix tablet. The method permitted the characterization of the changes occurring at the peripheral as well as within interior boundary of the swelling during water ingress. The increase in gel strength for pectin, HPMC, and a ternary mixture with gelatin was found to depend on polymer concentration. Therefore, this method is further applicable to characterize the swelling behavior and provide opportunity to differentiate the gel-layer from that of swelling boundary.

• 한국의류학회지
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• 제25권5호
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• pp.845-855
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• 2001

Now the most important thing in fashion industry is find out the fashion sensibility and preference of customers exactly. Thus it is needed that fashion sensibility is connected with formative properties in clothing. The purpose of this study is to clarify the relationship between the fashion sensibility and the formative properties in clothing. 91 kinds of costume samples have been selected from photographs in fashion magazines under color combination, inside form, texture, pattern type in clothing. I have measured fashion sensibility by using Semantic Differential method. The obtained data were analyzed by GLM, discriminant analysis. The results of analysis are as follow; 1. The discriminative images were significant difference in formative properties - color combination was related to attractiveness, inner form to decorativeness, pattern to harmony and texture to surface of soft and hard in clothing. 2. fashion sensibility was significant relationship with formative properties especially inner form in clothing. And the trimming was identified as gorgeous and feminine. 3. Preference, Buying needs, Riches and Pleasant were significant relationship with formative properties in clothing especially color combination and texture.

• 동아시아식생활학회지
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• 제18권1호
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• pp.9-13
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• 2008

This study was performed to investigate the quality characteristics of yanggaeng prepared with different ratios of Astragalus membranaceus powder : 2%, 4%, and 6%. Proximate composition, Hunter's color values, texture profile analysis, and sensory qualities were examined. The lightness of the yanggaeng decreased with increasing Astragalus membranaceus powder content. For the texture profile analysis, hardness increased with increasing Astragalus membranaceus powder content. In terms of sensory qualities, the 2% Astragalus membranaceus powder sample did not influence any of the sensory attributes of the yanggaeng.