• 제목/요약/키워드: ideal feature

검색결과 99건 처리시간 0.025초

The Ideal Image of Man of Ancient Chinese in Shi Jing (詩經)

  • Kim, Jin-Goo
    • The International Journal of Costume Culture
    • /
    • 제13권1호
    • /
    • pp.37-41
    • /
    • 2010
  • It is a universal phenomenon for people to establish ideal images of man according to a specific time, society and race. Thus, people have invested endless endeavor to reach the standard of ideal image. Especially, they made efforts to embody the ideal image of man as a perfect human image using appearance feature like a human body and clothing. Shi jing(詩經) is considered as a very valuable source book which reveals the life style, customs, thinking, ideas, and emotion of people of that period. The purpose of this study is to analyze the ideal image of man and woman which ancient Chinese pursued, focusing Shi jing(詩經). The results are as following. The ideal image of man is nice, handsome, dignified, generous and gentle. Besides, he should have adequate sense of humor, tall height. clear eye, broad forehead, moderate and upright behavior, outstanding horsemanship and marksmanship and braveness. Meanwhile, the ideal image of woman was described as gentle, decent, and graceful. Also, she should have tall height, light complexion, pretty hand, long neck, broad forehead, clear eyes, and charming black hair. The ideal beauty of woman included nobility and elegant personality in addition to the good physical appearance.

  • PDF

BLU 부품 기술개발 연구 (A Study on Takenical Development that by BLU Part)

  • 김수용;이오걸
    • 대한전기학회:학술대회논문집
    • /
    • 대한전기학회 2001년도 하계학술대회 논문집 C
    • /
    • pp.1804-1807
    • /
    • 2001
  • By comparing and analyzing the feature, brightness, chromaticity and uniformity of domestic LGPs and Japanese products, early home-manufacturing and stabilization in home-manufacturing are possible. By comparing and analyzing the distribution of brightness as sheets are varied, we can design an ideal sheet composition.

  • PDF

진폭복조를 이용한 복합텍스쳐영상의 분할 (Multitexture Image Segmentation Using Amplitude Demodulation)

  • 이현수
    • 전기전자학회논문지
    • /
    • 제5권2호
    • /
    • pp.211-220
    • /
    • 2001
  • 본 논문에서는 통신시스템에서의 진폭복조와 유사한 알고리듬을 이용한 2 차원 텍스쳐 영상분할에 관해 소개한다. 우선 이상적인 필터링 후에 진폭복조를 함으로써 복합텍스쳐영상을 분할 할 수 있음을 이론적으로 보였다. 그러나 실재의 경우, 이상적인 필터 대신, 여러 가지 이점이 있고 특히 최적의 공간-대역폭적의 특성을 갖고 있는 게이버 필터를 사용하였다. 우리의 알고리듬은 게이버 필터의 동조주파수와 동일한 주파수의 정현파를 갖고 있는 텍스쳐 영역을 모두 찾아준다. 합성된 복합텍스쳐영상을 이용하여 본 논문에서 제의한 방법의 분할능력을 보였다. 이 방법은 수학적으로 명백하고 또한 적용하기에 용이하다. 이 방법은 특성기반 텍스쳐 분할방법에서 특성벡터 분류시 야기되는 많은 문제를 피할 수 있는 좋은 대안이 될 수 있다.

  • PDF

적외선 감지 센서를 이용한 점 용접부의 검사 (Inspection of the spot welding using IR sensor)

  • 임대철;박인태;강형식;권대갑
    • 한국정밀공학회지
    • /
    • 제16권1호통권94호
    • /
    • pp.132-140
    • /
    • 1999
  • This paper suggests a monitoring method for the pulsed laser spot welding of the thin metal sheets using a point IR(InfraRed) sensor. A new criterion was introduced and the experimental results guaranteed the efficiency. The ideal radiation feature was derived from the mathematical model and was simulated. The radiation feature is robust to withstand the change of measuring condition and can be used to detect the absorbed laser energy. In an experiment, the radiation feature was examined for the differect laser energy. The pulse width and the laser power was variated and the radiation feature was examined. In the other experiment, the relationship between the weld strength and radiation feature was examined. Artificial Neural Network(ANN) was employed to find out the relationship. The correlation coefficient between the real strength and the estimated strength is high as 0.94 and the mean square error is low as 0.64 kgf learned parts. Another group of the welds was used to appraise the learning efficiency. The correlation coefficient between the measured and the estimated weld strength is high as 0.91.

  • PDF

Relevancy contemplation in medical data analytics and ranking of feature selection algorithms

  • P. Antony Seba;J. V. Bibal Benifa
    • ETRI Journal
    • /
    • 제45권3호
    • /
    • pp.448-461
    • /
    • 2023
  • This article performs a detailed data scrutiny on a chronic kidney disease (CKD) dataset to select efficient instances and relevant features. Data relevancy is investigated using feature extraction, hybrid outlier detection, and handling of missing values. Data instances that do not influence the target are removed using data envelopment analysis to enable reduction of rows. Column reduction is achieved by ranking the attributes through feature selection methodologies, namely, extra-trees classifier, recursive feature elimination, chi-squared test, analysis of variance, and mutual information. These methodologies are ranked via Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) using weight optimization to identify the optimal features for model building from the CKD dataset to facilitate better prediction while diagnosing the severity of the disease. An efficient hybrid ensemble and novel similarity-based classifiers are built using the pruned dataset, and the results are thereafter compared with random forest, AdaBoost, naive Bayes, k-nearest neighbors, and support vector machines. The hybrid ensemble classifier yields a better prediction accuracy of 98.31% for the features selected by extra tree classifier (ETC), which is ranked as the best by TOPSIS.

휘도 향상에 직접 영향을 미치는 BLU부품에 관한 특성 분석 (Characteristic analysis of BLU parts directly related to improvement of brightness.)

  • 김수용
    • 한국전기전자재료학회:학술대회논문집
    • /
    • 한국전기전자재료학회 2001년도 하계학술대회 논문집
    • /
    • pp.1100-1103
    • /
    • 2001
  • (1) By comparing and analyzing the distribution of brightness as domestic lamps and Japanese products go thinner and lighter, we set an effective design standard. (2) By comparing and analyzing the feature, brightness, chromaticity and uniformity of domestic LGPs and Japanese products, early home-manufacturing and stabilization in home-manufacturing are possible. (3) By comparing and analyzing the distribution of brightness as sheets are varied, we can design an ideal sheet composition.

  • PDF

시트에 의해 휘도가 변하는 BLU 특성분석에 관한 연구 (BLU special quality analysis that brightness changes by seat)

  • 김수용;이오걸
    • 전력전자학회:학술대회논문집
    • /
    • 전력전자학회 2001년도 전력전자학술대회 논문집
    • /
    • pp.105-108
    • /
    • 2001
  • In this paper, comparing and analyzing the distribution of brightness as domestic lamps and Japanese products go thinner and lighter, we set an effective design standard. By comparing and analyzing the feature, brightness, chromaticity and uniformity of domestic LGPs and Japanese products, early home-manufacturing and stabilization in home-manufacturing are possible. By comparing and analyzing the distribution of brightness as sheets are varied, we can design an ideal sheet composition.

  • PDF

An adaptive method of multi-scale edge detection for underwater image

  • Bo, Liu
    • Ocean Systems Engineering
    • /
    • 제6권3호
    • /
    • pp.217-231
    • /
    • 2016
  • This paper presents a new approach for underwater image analysis using the bi-dimensional empirical mode decomposition (BEMD) technique and the phase congruency information. The BEMD algorithm, fully unsupervised, it is mainly applied to texture extraction and image filtering, which are widely recognized as a difficult and challenging machine vision problem. The phase information is the very stability feature of image. Recent developments in analysis methods on the phase congruency information have received large attention by the image researchers. In this paper, the proposed method is called the EP model that inherits the advantages of the first two algorithms, so this model is suitable for processing underwater image. Moreover, the receiver operating characteristic (ROC) curve is presented in this paper to solve the problem that the threshold is greatly affected by personal experience when underwater image edge detection is performed using the EP model. The EP images are computed using combinations of the Canny detector parameters, and the binaryzation image results are generated accordingly. The ideal EP edge feature extractive maps are estimated using correspondence threshold which is optimized by ROC analysis. The experimental results show that the proposed algorithm is able to avoid the operation error caused by manual setting of the detection threshold, and to adaptively set the image feature detection threshold. The proposed method has been proved to be accuracy and effectiveness by the underwater image processing examples.

Depth tracking of occluded ships based on SIFT feature matching

  • Yadong Liu;Yuesheng Liu;Ziyang Zhong;Yang Chen;Jinfeng Xia;Yunjie Chen
    • KSII Transactions on Internet and Information Systems (TIIS)
    • /
    • 제17권4호
    • /
    • pp.1066-1079
    • /
    • 2023
  • Multi-target tracking based on the detector is a very hot and important research topic in target tracking. It mainly includes two closely related processes, namely target detection and target tracking. Where target detection is responsible for detecting the exact position of the target, while target tracking monitors the temporal and spatial changes of the target. With the improvement of the detector, the tracking performance has reached a new level. The problem that always exists in the research of target tracking is the problem that occurs again after the target is occluded during tracking. Based on this question, this paper proposes a DeepSORT model based on SIFT features to improve ship tracking. Unlike previous feature extraction networks, SIFT algorithm does not require the characteristics of pre-training learning objectives and can be used in ship tracking quickly. At the same time, we improve and test the matching method of our model to find a balance between tracking accuracy and tracking speed. Experiments show that the model can get more ideal results.

Full Parametric Impedance Analysis of Photoelectrochemical Cells: Case of a TiO2 Photoanode

  • Nguyen, Hung Tai;Tran, Thi Lan;Nguyen, Dang Thanh;Shin, Eui-Chol;Kang, Soon-Hyung;Lee, Jong-Sook
    • 한국세라믹학회지
    • /
    • 제55권3호
    • /
    • pp.244-260
    • /
    • 2018
  • Issues in the electrical characterization of semiconducting photoanodes in a photoelectrochemical (PEC) cell, such as the cell geometry dependence, scan rate dependence in DC measurements, and the frequency dependence in AC measurements, are addressed, using the example of a $TiO_2$ photoanode. Contrary to conventional constant phase element (CPE) modeling, the capacitive behavior associated with Mott-Schottky (MS) response was successfully modeled by a Havriliak-Negami (HN) capacitance function-which allowed the determination of frequency-independent Schottky capacitance parameters to be explained by a trapping mechanism. Additional polarization can be successfully described by the parallel connection of a Bisquert transmission line (TL) model for the diffusion-recombination process in the nanostructured $TiO_2$ electrode. Instead of shunt CPEs generally employed for the non-ideal TL feature, TL models with ideal shunt capacitors can describe the experimental data in the presence of an infinite-length Warburg element as internal interfacial impedance - a characteristic suggested to be a generic feature of many electrochemical cells. Fully parametrized impedance spectra finally allow in-depth physicochemical interpretations.