• 제목/요약/키워드: Morphology

검색결과 11,341건 처리시간 0.038초

퍼지 형태학 연산자를 적용한 DTCNN 연구 (A STUDY ON DTCNN APPLYING FUZZY MORPHOLOGY OPERATORS)

  • 변오성;문성룡
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 2000년도 추계종합학술대회 논문집(3)
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    • pp.13-16
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    • 2000
  • This paper is to compare DTCNN(Discrete-time Cellular Neural Networks) applying the fuzzy morphology operators with the conventional FCNN(Fuzzy CNN) using the general morphology operators. These methods are to the image filtering, and are compared as MSE. Also the main goal of this paper is to compare the fuzzy morphology operators with the general morphology operators through image input. In a result of computer simulation, we could know that the error of DTCNN applying the fuzzy morphology operators is less about 6.1809 than FCNN using the general morphology operators in the image included 10% noise, also the error of the former is less about 5.5922 than the latter in the image included 20% noise. And the image of DTCNN applying the fuzzy morphology operators is superior to FCNN using the general morphology operators.

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Polyetherimide/Dicyanate Semi-interpenetrating Polymer Networks Having a Morphology Spectrum

  • Kim, Yu-Seung;Min, Hyun-Sung;Kim, Sung-Chun
    • Macromolecular Research
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    • 제10권2호
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    • pp.60-66
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    • 2002
  • The morphology, dynamic mechanical behavior and fracture behavior of polyetherimide (PEI)/dicyanate semi-interpenetrating polymer networks (semi-IPNs) with a morphology spectrum were analyzed. To obtain the morphology spectrum, we disported PEI particles in the procured dicyanate resin containing 300 ppm of zinc stearate catalyst. The semi-IPNs exhibited a morphology spectrum, which consisted of nodular spinodal structure, dual-phase morphology, and sea-island type morphology, in the radial direction of each dispersed PEI particle due to the concentration gradient developed by restricted dissolution and diffusion of the PEI particles during the curing process of the dicyanate resin. Analysis of the dynamic mechanical data obtained by the semi-IPNs demonstrated that the transition of the PEI-rich phase was shifted toward higher temperature as well as becoming broader because of the gradient structure. The semi-IPNs with the morphology spectrum showed improved fracture energy of 0.3 kJ/$m^2$, which was 1.4 times that of the IPNS having sea-island type morphology. It was found that the partially introduced nodular structure played a crucial role in the enhancement of the fracture resistance of the semi-IPNs.

사상체질별 입의 형태와 소화기능과의 상관성에 관한 연구 (The Study about Morphology of Mouth according to Sasang Constitution and its Correlation with Digestion)

  • 반덕진;박성식
    • 사상체질의학회지
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    • 제21권1호
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    • pp.127-138
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    • 2009
  • 1. Objectives To examine appearances is essential of diagnosing Sasang constitution. It has been studied in various way, we focus the correlation between morphology of mouth and digestion. 2. Methods We have collected 231 cases of participants who were diagnosed sasnag constitution and measured morphology of mouth and analyzed the correlation between morphology of mouth and digestion. 3. Results and conclusions In result of analyzing the relation between morphology of mouth and digestion, morphology of mouth have correlation with digestion. And also morphology of mouth have correlation with digestion according to sex and sasang constitution.

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Paradigm Forces in English Derivational Morphology

  • Kim, Jin-Hyung
    • 한국영어학회지:영어학
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    • 제1권2호
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    • pp.243-272
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    • 2001
  • This paper focuses on the applicability of paradigm to derivational morphology and the pressure of paradigm enforced on derivational phonology and morphology. Through a close examination of well-attested data, we will demonstrate that apparent surface idiosyncrasies in phonology are the results of paradigm leveling, and that paradigmatic forces of analogy are productively operating in English word formation. On the basis of these observations, it can be argued that the notion of paradigm has at least some justification within derivational morphology as well, even if not to the same extent that it has with inflectional morphology and that the paradigm forces are independently needed in any adequate phonological and morphological theory. This can also be extended to provide evidence against the split morphology hypothesis that inflectional and derivational morphology belong to different grammatical modules.

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The effect of NPB morphology on OLEDs optoelectronic characteristics

  • Jiang, Yurong;Xue, Wei
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2004년도 Asia Display / IMID 04
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    • pp.602-604
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    • 2004
  • NPB surface morphologies deposited on different temperature substrates were investigated using atomic force microscopy(AFM). It has been found that the NPB morphology turned from island morphology at high temperature(100$^{\circ}C$) to grain morphology at room temperature. To characterize the effect of NPB surface morphology, the devices with the structure of Glass/ITO/NPB/$Alq_3$/Al were fabricated using NPB films deposited at different substrate temperature and their performances were compared.

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Brain morphology according to age, sex, and handedness

  • Kang, Sa Jin;Kang, Kyeong A;Jang, Han;Lee, Jae Youn;Lee, Kang Il;Kwoen, Min Seok;Kim, Jung Soo;Park, Kang Min
    • Annals of Clinical Neurophysiology
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    • 제19권2호
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    • pp.93-100
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    • 2017
  • In this article, we review the differences of the brain morphology according to age, sex, and handedness. Age is a well-known factor affecting brain morphology. With aging, progressive reduction of brain volume is driven. Sex also has great effects on brain morphology. Although there are some reports that the differences of brain morphology may originate from the differences of weight between the 2 sexes, studies have demonstrated that there are regional differences even after the correction for weight. Handedness has long been regarded as a behavioral marker of functional asymmetry. Although there have been debates about the effect of handedness on brain morphology, previous well-established studies suggest there are differences in some regions according to handedness. Even with the studies done so far, normal brain morphology is not fully understood. Therefore, studies specific for the each ethnic group and standardized methods are needed to establish a more reliable database of healthy subjects' brain morphology.

Morphology-pair 연산과 중간 값을 이용한 심전도 신호의 기저선 변동 잡음 제거 (Removing Baseline Drift in ECG Signal using Morphology-pair Operation and median value)

  • 박길흠;김정홍
    • 한국컴퓨터정보학회논문지
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    • 제19권8호
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    • pp.107-117
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    • 2014
  • 본 논문에서는 심전도 파형에서 P, R, T-wave와 같은 local maxima 신호 영역과 Q, S-wave와 같은 local minima 신호영역을 제거하여 기저선 변동 잡음을 제거하기 위한 방법을 제시한다. 이를 위해 형태연산을 개선한 morphology-pair 연산을 심전도 파형에 적용하고, 그 결과 발생되는 돌출 파형을 제거하고자 중간 값 연산을 적용하였다. 제안한 알고리즘의 성능을 확인하기 위해 실제 심전도 임상 데이터인 MIT/BIH 데이터베이스를 이용하였으며, 실험 결과 원 신호를 왜곡 하지 않고, 기저선 변동 잡음을 효과적으로 제거함을 확인하였다.

Particle Size, Morphology and Color Characteristics of C.I. Pigment Red 57:1 : 2. Effect of Salt Milling Process

  • Seo, Hee Sung;Lee, Hyun Kyung;Yoo, Eui Sang
    • 한국염색가공학회지
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    • 제27권4호
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    • pp.245-260
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    • 2015
  • The effect of salt milling process on the crystal size, morphology, and color characteristics of C.I. Pigment Red 57:1 was studied. The primitive morphology and color properties of the pigment after synthesis were studied in the former series work. The size and morphology of primary particles and the second aggregation features should be considered because they are very important to determine pigment quality. We compared the primary morphology of pigment particles before drying with the secondary aggregated morphology of pigment particles after drying and salt milling process. Morphological properties were investigated by particle size analysis, X-ray diffraction, and scanning electron microscopy and color measurement was carried out. Significant reduction in particle size as well as enhanced crystallite size after salt milling process was observed. This result might give a difference in color of the pigment, turning into brighter and more blue-toned red color. It was revealed that synthesis condition affect the morphology and color of the pigment even after milling. Increase in HCl concentration in the synthesis process enhanced crystal size and quality forming bluer-red pigments but an increase in $CaCl_2$ concentration resulted in more amorphous crystals forming darker-red pigments after salt milling.

해체와 구성을 이용한 다중 스케일 균열 검출 (Multi-scale crack detection using decomposition and composition)

  • 김영로;정지영
    • 디지털산업정보학회논문지
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    • 제9권3호
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    • pp.13-20
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    • 2013
  • In this paper, we propose a multi-scale crack detection method. This method uses decomposition, composition, and shape properties. It is based on morphology algorithm, crack features. We use a morphology operator which extracts patterns of crack. It segments cracks and background using opening and closing operations. Morphology based segmentation is better than existing integration methods using subtraction in detecting a crack it has small width. However, morphology methods using only one structure element could detect only fixed width crack. Thus, we use decomposition and composition methods. We use a decimation method for decomposition. After decomposition and morphology operation, we get edge images given by binary values. Our method calculates values of properties such as the number of pixels and the maximum length of the segmented region. We decide whether the segmented region belongs to cracks according to those data. Experimental results show that our proposed multi-scale crack detection method has better results than those of existing detection methods.

Three-dimensional cone-beam computed tomography based comparison of condylar position and morphology according to the vertical skeletal pattern

  • Park, In-Young;Kim, Ji-Hyun;Park, Yang-Ho
    • 대한치과교정학회지
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    • 제45권2호
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    • pp.66-73
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    • 2015
  • Objective: To compare condylar position and morphology among different vertical skeletal patterns. Methods: Diagnostic cone-beam computed tomography images of 60 adult patients (120 temporomandibular joints) who visited the orthodontic clinic of Hallym University Sacred Heart Hospital were reviewed. The subjects were divided into three equal groups according to the mandibular plane angle: hypodivergent, normodivergent, and hyperdivergent groups. Morphology of the condyle and mandibular fossa and condylar position were compared among the groups. Results: The hypodivergent and hyperdivergent groups showed significant differences in superior joint spaces, antero-posterior condyle width, medio-lateral condyle width, condyle head angle, and condylar shapes. Conclusions: Condylar position and morphology vary according to vertical facial morphology. This relationship should be considered for predicting and establishing a proper treatment plan for temporomandibular diseases during orthodontic treatment.