• 대한원격탐사학회지
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• 제21권2호
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• pp.121-133
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• 2005

화소들 사이의 관계를 고려해 Texture 영상을 생성해 내는 것을 의미하는 Texture 영상화는 유용한 영상 분석 방법 중의 하나로 잘 알려져 있고, 대부분의 상업적인 원격 탐사 소프트웨어들은 GLCM이라는 Texture 분석 기능을 제공하고 있다. 본 연구에서는, GLCM 알고리즘에 기반한 Texture 영상화 프로그램이 구현되었고, 추가적으로 GLDV에 기반을 둔 Texture 영상화 모듈 프로그램을 제공한다. 본 프로그램에서는 Homogeneity, Dissimilarity, Energy, Entropy, Angular Second Moment(ASM), Contrast 등과 같은 GLCN/GLDV의 6가지 Texture 변수에 따라 각각 이에 해당하는 Texture 영상들을 생성해 낸다. GLCM/GLDV Texture 영상 생성에서는 방향 의존성을 고려해야 하는데, 이 프로그램에서는 기본적으로 동-서, 북동-남서, 북-남, 북서-남동 등의 기본적인 방향설정을 제공한다. 또한 이 논문에서 새롭게 구현된 커널내의 모든 방향을 고려해서 평균값을 계산하는 Omni 방향 모드와 커널내의 중심 화소를 정하고_그 주변 화소에 대한 원형 방향을 고려하는 원형방향 모드를 지원한다. 또한 본 연구에서는 여러 가지 변수와 모드에 따라 얻어진 Texture 영상의 분석을 위하여 가상 영상 및 실제 위성 영상들에 의하여 생성된 Texture 영상간의 특징 분석과 상호상관 분석을 수행하였다. Texture 영상합성 응용시에는 영상의 생성시에 적용된 변수들에 대한 이해와 영상간의 상관도를 분석하는 과정이 필요할 것으로 생각된다.

• 한국소성가공학회:학술대회논문집
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• 한국소성가공학회 2001년도 추계학술대회 논문집
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• pp.138-141
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• 2001

The evolution of lectures and microstructure during the warm-rolling and subsequent annealing in aluminum 3004 alloy sheets was investigated by employing X-ray texture measurements and microstructure observations. Whereas the typical $\beta$-fiber orientations with the strong Bs-orientation $\{112\}<110>$ formed in the normally cold-rolled specimen, the warm-rolling at $250^{\circ}C$ led to the development of a strong through thickness texture gradient which was characterized by shear texture at the surface layer and rolling textures at the center layer After warm rolling, ultra-fine grains formed in the thickness layer with shear texture components. Upon recrystallization annealing, the $\{001\}<100>$ Cube-texture developed at the expense of normal rolling texture components the rise to the formation of corase recrystallized grains. However, in the layer with shear texture components the continuous recrystallization took place and the fine grain size persisted even after recrystallization annealing.

• 대한전자공학회논문지
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• 제26권9호
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• pp.1428-1435
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• 1989

In this paper we propose a new algorithm which extracts spatial arrangement information of texture elements in structural textures. In the proposed algorithm, by the use of projection information in several directions obtained from the texture image we can get two directions which determine the texture structure and the parallelogram grid which isolates texture elements. The isolated texture elements are analyzed and used to synthesize texture images. Computer simulation shows that the proposed method can extract proper spatial structure of the texture element even when the texture image is highly corrupted by additive noise.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제8권7호
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• pp.2400-2419
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• 2014

Pre-segmented pixels can reduce the difficulty of segmentation and promote the segmentation performance. This paper proposes a novel segmentation method based on merging texture superpixels by computing inner similarity. Firstly, we design a set of Gabor filters to compute the amplitude responses of original image and compute the texture map by a salience model. Secondly, we employ the simple clustering to extract superpixles by affinity of color, coordinates and texture map. Then, we design a normalized histograms descriptor for superpixels integrated color and texture information of inner pixels. To obtain the final segmentation result, all adjacent superpixels are merged by the homogeneity comparison of normalized color-texture features until the stop criteria is satisfied. The experiments are conducted on natural scene images and synthesis texture images demonstrate that the proposed segmentation algorithm can achieve ideal segmentation on complex texture regions.

• 한국통신학회논문지
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• 제16권12호
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• pp.1249-1265
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• 1991

본 논문에서는 texture 영상 분할을 위한 새로운 고속 적응 texture 특징 추출 방법을 제안하였다. 먼저 기존의 통계적 texture 특징 추출 방법에 대하여 설명하였으며, SGLDM을 구하는 방법과 이것을 이용하여 추출할 수 있는 textrue 특징들에 관하여 기술하였다. 그리고 고속으로 특징을 추출하기 위한 반복 계산식을 각 특징에 대하여 유도하였으며 반복 계산식으로 이용하여 고속 적응 texture 특징을 방법에 대하여 설명하였다. 마지막으로 제안된 방법의 성능을 평가하기 위하여 인공적으로 합성한 texture 영상에 대하여 컴퓨터 시뮬레이션을 수행하였다. 그 결과 기존의 방법과 비교해서 영역의 경계부분에서 비교적 정확한 특징값을 추출할 수 있음을 알 수 있었다.

• 한국소성가공학회:학술대회논문집
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• 한국소성가공학회 1999년도 춘계학술대회논문집
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• pp.184-187
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• 1999

The texture of electrodeposits is related to microstructure surface morphology and mechanical properties. When the electrodeposits annealed the recrystallization texture many be different from the original deposition texture. the <100> and <110> textures of nickel electrodeposits changed to the <100> and <{{{{ SQRT {310 } }}}}> textures when recrystallized The <100> and <{{{{ SQRT {310 } }}}}> mixed texture is changed to the <100> texture. The <002> texture of Zn electrodeposits didn't changed even after recrystallization.

• 한국소성가공학회:학술대회논문집
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• 한국소성가공학회 1997년도 춘계학술대회논문집
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• pp.233-239
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• 1997

The effect of the cross-rolling on the evolution of the deformation texture and the subsequent annealing texture was studied in 5182 aluminium alloy. The orientation density near {011}<110>. The weak ${\beta}$-fiber orientations in the deformation texture lead to the randomization of the annealing texture, whereas the strong ${\beta}$-fiber orientations lead to the strong Cube orientation in the annealing texture. The development of the strong rotated Cube orientation in the annealing texture seemed to be related with the decrease in the R-value.

• 대한전자공학회논문지
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• 제24권4호
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• pp.675-683
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• 1987

In general, texture images with regular patterns can be described by using the standard texture model regularity vectors for their shape analysis. Early methods not only take much time but also have computational complexity in obtaining regularity vectors. The proposed some improved preprocessing algorithms for texture analysis. Finally, we showed the utility of the proposed method through texture synthesis by making use of the results of texture analysis.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2005년도 추계종합학술대회
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• pp.963-966
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• 2005

Previous works related to texture coordinate coding of the three-dimensional(3-D) mesh models employed the same predictor as the geometry coder. However, discontinuities in the texture coordinates cause unreasonable prediction. Especially, discontinuities become more serious for the 3-D mesh model with a non-atlas texture image. In this paper, we propose a new coding scheme to remove discontinuities in the texture coordinates by reallocating texture segments according to a coding order. Experiment results show that the proposed coding scheme outperforms the MPEG-4 3DMC standard in terms of compression efficiency. The proposed scheme not only overcome the discontinuity problem by regenerating a texture image, but also improve coding efficiency of texture coordinate compression.

• 한국소성가공학회:학술대회논문집
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• 한국소성가공학회 2001년도 추계학술대회 논문집
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• pp.147-149
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• 2001

In order to understand the influence of the modification of deformation texture on the formation of annealing texture, the evolution of texture during the clock rolling and the subsequent annealing was investigated by employing X-ray texture measurements and microstructure observation. The $\beta$-fiber orientations were proved to be quite unstable during the clock rolling. The clock rolled texture having uniform orientation densities along $\{011\}//ND$ fiber resulted in the randomization of annealing texture. This indicated that the operation of both the oriented nucleation and the oriented growth was effectively suppressed in the clock-rolled specimen during recrystallization.