• Title/Summary/Keyword: 3D Texture Analysis

Search Result 116, Processing Time 0.023 seconds

Effect of Dietary Herb Mix on the Physicochemical Quality of Cooked Chicken Egg during Refrigerated Storage (복합 한약재 급여가 냉장 저장 중 삶은 계란의 물리화학적 품질에 미치는 영향)

  • Liu, X.D.;Jang, A.;Shin, M.H.;Lee, B.D.;Lee, S.K.;Kim, E.M.;Jo, C.
    • Korean Journal of Poultry Science
    • /
    • v.35 no.1
    • /
    • pp.1-7
    • /
    • 2008
  • Three dietary herbs, Coptis japonica Makino (48.5%), Lonicera japonica Thunb (48.5%), and Morus alba L. (3%) were mixed and used as additives in hen's feed. One hundred-eight, 28-wk-old Lohmann Brown hens were assigned randomly with three diet treatments (0, 0.3, and 1% of herb mix). Hens were fed for 6 wks to investigate the effect of herb mix on the physicochemical quality of eggs during storage at $4^{\circ}C$ for 0, 3, 7, and 14 days. Proximate composition including the content of water, protein, fat, and ash had no difference among 3 diet treatments. Objective color of cooked whole egg from hens fed herb mix did not show any effect compared with control except for the color $a^*$- and $b^*$-values at day 3. However, color $a^*$- and $b^*$-values increased during storage regardless of treatment. From the texture analysis, eggs from hens fed with the herb mix were not different compared with control remove for springness at day 14. However, it was observed that springness and gumminess were decreased as storage period increased. Therefore, a dietary supplementation of herb mix to hen may not affect on proximate composition, color and texture of eggs.

A CPU-GPU Hybrid System of Environment Perception and 3D Terrain Reconstruction for Unmanned Ground Vehicle

  • Song, Wei;Zou, Shuanghui;Tian, Yifei;Sun, Su;Fong, Simon;Cho, Kyungeun;Qiu, Lvyang
    • Journal of Information Processing Systems
    • /
    • v.14 no.6
    • /
    • pp.1445-1456
    • /
    • 2018
  • Environment perception and three-dimensional (3D) reconstruction tasks are used to provide unmanned ground vehicle (UGV) with driving awareness interfaces. The speed of obstacle segmentation and surrounding terrain reconstruction crucially influences decision making in UGVs. To increase the processing speed of environment information analysis, we develop a CPU-GPU hybrid system of automatic environment perception and 3D terrain reconstruction based on the integration of multiple sensors. The system consists of three functional modules, namely, multi-sensor data collection and pre-processing, environment perception, and 3D reconstruction. To integrate individual datasets collected from different sensors, the pre-processing function registers the sensed LiDAR (light detection and ranging) point clouds, video sequences, and motion information into a global terrain model after filtering redundant and noise data according to the redundancy removal principle. In the environment perception module, the registered discrete points are clustered into ground surface and individual objects by using a ground segmentation method and a connected component labeling algorithm. The estimated ground surface and non-ground objects indicate the terrain to be traversed and obstacles in the environment, thus creating driving awareness. The 3D reconstruction module calibrates the projection matrix between the mounted LiDAR and cameras to map the local point clouds onto the captured video images. Texture meshes and color particle models are used to reconstruct the ground surface and objects of the 3D terrain model, respectively. To accelerate the proposed system, we apply the GPU parallel computation method to implement the applied computer graphics and image processing algorithms in parallel.

Analysis of the Machinability of a Precision Machining of Molds/Dies by Using Jig and 3-Axis M/C (3축 머시닝센터와 치구를 이용한 금형의 정밀가공시의 특성해석)

  • Kim, B.H.;Chu, C.N.
    • Journal of the Korean Society for Precision Engineering
    • /
    • v.12 no.3
    • /
    • pp.119-129
    • /
    • 1995
  • In this paper, the inclined endmilling process with a 3-axis machining center using inclined jigs is introduced for the purpose of reducing overall Dies/Molds machining time and improving the machining accuracies. In order to analyze the cutting mechanism of a given endmill more accurately, the unification of the cutting mechanism model of 3-different- kind endmills is carried out by using a nose radius as a parameter. By adding radial runouts as a parameter which influences on surface roughness, the superposition method which defines the effective cusp height superposing the cutter mark height and the conventional cusp height is advanced. And 3-D suface topography predicted in this paper looks like the surface normally observed in practice. Through machining experiments, the adequacy of the superposition method was confirmed.

  • PDF

Segmentation and estimation of surfaces from statistical probability of texture features

  • Terauchi, Mutsuhiro;Nagamachi, Mitsuo;Koji-Ito;Tsuji, Toshio
    • 제어로봇시스템학회:학술대회논문집
    • /
    • 1988.10b
    • /
    • pp.826-831
    • /
    • 1988
  • This paper presents an approach to segment an image into areas of surfaces, and to compute the surface properties from a gray-scale image in order to describe the surfaces for reconstruction of the 3-D shape of the objects. In general, an rigid body has several surfaces and many edges. But if it is not polyhedoron, it is necessary not only to describe the relation between surfaces, i.e. its line drawings but also to represent the surfaces' equations itself. In order to compute the surfaces' equation we use a probability of edge distribution. At first it is extracted edges from a gray-level image as much as possible. These are not only the points that maximize the change of an image intensuty but candidates which can be seemed to be edges. Next, other character of a surface (color, coordinates and image intensity) are extracted. In our study, we call the all feature of a surface as "texture", for example color, intensity level, orientation of an edge, shape of a surface and so on. These features of a surface on a pixel of an image plane are mapped to a point of the feature space, and segmented to each groups by cluster analysis on this space. These groups are considered to represent object surface in an image plane. Finally, the states of object surface in 3-D space are computed from distributional probability of local and overall statistical features of a surface, and from shape of a surface.a surface.

  • PDF

Studies on the Physical Characteristics of Muffins with Tagatose and Sugar during Storage (설탕과 타가토스를 사용하여 제조한 머핀의 저장기간에 따른 물리적 특성 연구)

  • Hwang, Ja-Young;Kim, Young-Jae;Lee, Sun-Mee
    • Journal of the East Asian Society of Dietary Life
    • /
    • v.25 no.1
    • /
    • pp.176-182
    • /
    • 2015
  • The aim of this study was to evaluate the characteristics of muffin made with tagatose which substituted sugar. Moisture contents were measured and Texture Profile Analysis was carried out during 3 day storage. 3 types of muffin, T0 (no tagatose added, sugar was the only sweet taste source), T25 (tagatose : sugar = 25:75(w/w), and T50 (tagatose : sugar = 50:50(w/w) were prepared. As the tagatose contents increased, the Maillard reaction proceeded more, so the color of the muffin crust was darker. Moisture contents of muffins decreased during storage, up to 2 days of storage, moisture contents of T25 and T50 were higher significantly, but at the 3rd day of storage, no differences were detected among samples. In the texture profile analysis, hardness, chewiness and fracturability were higher as the tagatose contents increased. Springiness and cohesiveness did not show any differences between T0 and T25 significantly. In the sensory evaluation, T0 got the lower points on the crust color value, but the crust colors were not significantly different among samples. Other characteristics like crumb color, moistness, sweetness, flavor and overall acceptance were not different significantly. As a result, when synbiotic and low-calorie tagatose was partly added to muffin up to 50 % as sugar substitute, overall qualities of those muffins were not different with only sugar added ones, even moisture contents were higher but color was a little bit darker, so tagatose can be used on making healthy muffins successfully.

Performance Evaluation of Surface Textures on Concrete Pavement (콘크리트 거친면 마무리처리에 따른 공용성 평가)

  • Park, Kwon-Je;Mun, Jun-Beom;Cho, Yoon-Ho
    • International Journal of Highway Engineering
    • /
    • v.6 no.1 s.19
    • /
    • pp.1-11
    • /
    • 2004
  • This study tries to propose the most effective pavement texture method through the performance evaluation of variable texture methods. Noise 2$\sim$3dB is reduced in the section of uniform space 18m longitudinal tinning. This result is proved by comparing the magnitude of noise in two sections. The noise of 26mm longitudinal firming section is greater than that of 18mm section by 2$\sim$3dB(A). The skid resistances measured in all test section show the reasonable results. The roughness or all the test sections satisfies AASHTO roughness standard (PrI 16cm/km). The result or questionnaire survey about driving quality shows that the longitudinal tinning is the most effective method. As the result of a visual measurement, it is proved that the section applied uniform space 26mm longitudinal tinning and the general section applied uniform space 26mm transverse tinning could drain water effectively. As the result of analysis with the ranking method, the 18mm longitudinal tinning in selected as one of the most effective tinning methods. In addition, 26mm longitudinal tinning, random space transverse tinning, and transverse drag are selected in order.

  • PDF

Compositional Change of MgO Barrier and Interface in CoFeB/MgO/CoFeB Tunnel Junction after Annealing

  • Bae, J.Y.;Lim, W.C.;Kim, H.J.;Kim, D.J.;Kim, K.W.;Kim, T.W.;Lee, T.D.
    • Journal of Magnetics
    • /
    • v.11 no.1
    • /
    • pp.25-29
    • /
    • 2006
  • Recent experiments have demonstrated high TMR ratios in MTJs with the MgO barrier [1,2]. The CoFeB/MgO/CoFeB junctions showed better properties than the CoFe/MgO/CoFe junctions because the MgO layer had a good crystalline structure with (001) texture and smooth and sharp interface between CoFeB/MgO [3]. The amorphous CoFeB with 20 at%B starts the crystallization at $340^{\circ}C$ [4] and this crystallization of the CoFeB helps obtaining the high TMR ratio. In this work, the compositional changes in the MgO barrier and at the interface of CoFeB/MgO/CoFeB after the CoFeB crystallization were studied in annealed MTJs. XPS depth profiles were utilized. TEM analyses showed that the MgO barrier had (100) texture on CoFeB in the junctions. B in the bottom CoFeB layer diffused into the MgO barrier and B-oxide was formed at the interface of CoFeB/MgO/CoFeB after the CoFeB crystallization.

MRI Image Retrieval Using Wavelet with Mahalanobis Distance Measurement

  • Rajakumar, K.;Muttan, S.
    • Journal of Electrical Engineering and Technology
    • /
    • v.8 no.5
    • /
    • pp.1188-1193
    • /
    • 2013
  • In content based image retrieval (CBIR) system, the images are represented based upon its feature such as color, texture, shape, and spatial relationship etc. In this paper, we propose a MRI Image Retrieval using wavelet transform with mahalanobis distance measurement. Wavelet transformation can also be easily extended to 2-D (image) or 3-D (volume) data by successively applying 1-D transformation on different dimensions. The proposed algorithm has tested using wavelet transform and performance analysis have done with HH and $H^*$ elimination methods. The retrieval image is the relevance between a query image and any database image, the relevance similarity is ranked according to the closest similar measures computed by the mahalanobis distance measurement. An adaptive similarity synthesis approach based on a linear combination of individual feature level similarities are analyzed and presented in this paper. The feature weights are calculated by considering both the precision and recall rate of the top retrieved relevant images as predicted by our enhanced technique. Hence, to produce effective results the weights are dynamically updated for robust searching process. The experimental results show that the proposed algorithm is easily identifies target object and reduces the influence of background in the image and thus improves the performance of MRI image retrieval.

Features and Properties of $YBa_2$$Cu_3$$O_{7-x}$ Films Grown on SrTi$O_3$ by High Frequency PLD

  • Shi, D.Q.;Ko, R.K.;Song, K.J.;Chung, J.K.;Choi, S.J.;Park, Y.M.;Shin, K.C.;Yoo, S.I.;Park, C.
    • Progress in Superconductivity
    • /
    • v.5 no.1
    • /
    • pp.75-79
    • /
    • 2003
  • YBCO films were deposited with various thicknesses from 100nm to 1.6$\mu\textrm{m}$ on single crystal $SrTiO_3$ substrates by pulsed laser deposition (PLD). The effects of different deposition conditions, especially different deposition rates by means of changing the pulsed laser frequency up to 200Hz, on the J$_{c}$ value were studied. For YBCO film with the thickness of 200nm, the $J_{c}$ value of $2.1MA/\textrm{cm}^2$ has been achieved under the high deposition rate of 3.2nm/s (190nm/min). The $J_{c}$ can be maintained greater than $1M/\textrm{cm}^2$ with the thickness less than 1$\mu\textrm{m}$. The X-ray analysis was used to examine the texture, crystallization and surface quality. The SEM was employed to analyze the surface of YBCO, and it was shown the surface of YBCO film became rougher with increasing the thickness. There were many large singular outgrowths and networks of outgrowths on the surface of YBCO films which lowered the density of thick YBCO film. The outgrowth network was probably the a-axis YBCO corresponding to XRD $\theta$-2$\theta$scan and $\chi$-scan which were used to characterize a-axis orientation of YBCO film. The reason for J$_{c}$ declining with increasing the thickness was studied and discussed.sed.

  • PDF

A Method of Integrating Scan Data for 3D Face Modeling (3차원 얼굴 모델링을 위한 스캔 데이터의 통합 방법)

  • Yoon, Jin-Sung;Kim, Gye-Young;Choi, Hyung-Il
    • Journal of the Institute of Electronics Engineers of Korea SP
    • /
    • v.46 no.6
    • /
    • pp.43-57
    • /
    • 2009
  • Integrating 3D data acquired in multiple views is one of the most important techniques in 3D modeling. However, the existing integration methods are sensitive to registration errors and surface scanning noise. In this paper, we propose a integration algorithm using the local surface topology. We first find all boundary vertex pairs satisfying a prescribed geometric condition in the areas between neighboring surfaces, and then separates areas to several regions by using boundary vertex pairs. We next compute best fitting planes suitable to each regions through PCA(Principal Component Analysis). They are used to produce triangles that be inserted into empty areas between neighboring surfaces. Since each regions between neighboring surfaces can be integrated by using local surface topology, a proposed method is robust to registration errors and surface scanning noise. We also propose a method integrating of textures by using parameterization technique. We first transforms integrated surface into initial viewpoints of each surfaces. We then project each textures to transformed integrated surface. They will be then assigned into parameter domain for integrated surface and be integrated according to the seaming lines for surfaces. Experimental results show that the proposed method is efficient to face modeling.