• Title/Summary/Keyword: Image Similarity

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Development of Bolt Tap Shape Inspection System Using Computer Vision Technology (컴퓨터 비전 기술을 이용한 볼트 탭 형상 검사 시스템 개발)

  • Park, Yang-Jae
    • Journal of Digital Convergence
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    • v.16 no.3
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    • pp.303-309
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    • 2018
  • Computer vision technology is a component inspection to obtain a video image from the camera to the machine to perform the capabilities of the human eye with a field of artificial intelligence, and then analyzed by the algorithm to determine to determine the good and bad of production parts It is widely applied. Shape inspection method was used as how to identify the location of the start point and the end point of the search range, measure the height to the line scan method, in such a manner as to determine the presence or absence of the bolt tabs average brightness of the inspection area in a circular scan type value And the degree of similarity was calculated. The total time it takes to test in the test performance tests of two types of bolts tab enables test 300 min, and demonstrated the accuracy and efficiency of the inspection on the production line represented a complete inspection accuracy.

The Non-dual Beauty of TV Makeup Shown in TV Entertainment Programs (TV 오락프로그램의 메이크업에 나타난 불이미(不二美))

  • Kim, Min-Shin
    • Journal of the Korea Fashion and Costume Design Association
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    • v.17 no.3
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    • pp.135-148
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    • 2015
  • The purpose of this study was to research into TV makeup types focusing on Korean aesthetics with recognizing importance of Korean thought amid what the global interest pays attention to South Korea thanks to the recent influence of Hanryu(Korean wave). The following are summary and result of this study. The non-dual beauty is an integrative concept of including ambivalence on the categorical difference in sex, culture and class by transcending the extreme binary division. As this is what reflected the open thought of pursuing balance of yin and yang in Korean people, it is being shown in the form of transcendence and far-outness through TV entertainment programs. Transcendence coexisted with maintaining relative relationship beyond separation in sex. Far-outness was pursuing free sensitivity immanent in the non-separated thought of transcending the past, the present and future. This trend is being indicated similarly to a change in its paradigm from separation to convergence these days. Accordingly, even makeup was showing similarity to the recent trend with being paid attention to the makeup of focusing on identity in sex and to the makeup of being coexisted the past, the present and future with the aspect of being mixed space time. The Korean aesthetics has been feeble in its influence compared to the Oriental image of focusing on China and Japan in the meantime. Hence, this study can be said to have significance in a sense of being the first consideration that compared TV makeup types of focusing on Korean aesthetics and suggested its developmental direction.

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Face Recognition Under Ubiquitous Environments (유비쿼터스 환경을 이용한 얼굴인식)

  • Go, Hyoun-Joo;Kim, Hyung-Bae;Yang, Dong-Hwa;Park, Jang-Hwan;Chun, Myung-Geun
    • Journal of the Korean Institute of Intelligent Systems
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    • v.14 no.4
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    • pp.431-437
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    • 2004
  • This paper propose a facial recognition method based on an ubiquitous computing that is one of next generation intelligence technology fields. The facial images are acquired by a mobile device so-called cellular phone camera. We consider a mobile security using facial feature extraction and recognition process. Facial recognition is performed by the PCA and fuzzy LDA algorithm. Applying the discrete wavelet based on multi-resolution analysis, we compress the image data for mobile system environment. Euclidean metric is applied to measure the similarity among acquired features and then obtain the recognition rate. Finally we use the mobile equipment to show the efficiency of method. From various experiments, we find that our proposed method shows better results, even though the resolution of mobile camera is lower than conventional camera.

A Lane Tracking Algorithm Using IPM and Kalman Filter (역투영 변환과 칼만 필터를 이용한 주행차선 추적)

  • Yeo, Jae-Yun;Koo, Kyung-Mo;Cha, Eui-Young
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.17 no.11
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    • pp.2492-2498
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    • 2013
  • In this paper, A lane tracking algoritm is proposed for lane departure warning system. To eliminate perspective effect, input image is converted into Bird's View by inverse perspective mapping. Next, suitable features are extracted for lane detection. Using clustering and lane similarity function with noise suppression features are extracted. Finally, lane model is calculated using RANSAC and lane model is tracked using Kalman Filter. Experimental results show that the proposed algorithm can be processed within 20ms and its detection rate approximately 90% on the highway in a variety of environments.

ID Face Detection Robust to Color Degradation and Partial Veiling (색열화 및 부분 은폐에 강인한 ID얼굴 검지)

  • Kim Dae Sung;Kim Nam Chul
    • Journal of the Institute of Electronics Engineers of Korea SP
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    • v.41 no.1
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    • pp.1-12
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    • 2004
  • In this paper, we present an identificable face (n face) detection method robust to color degradation and partial veiling. This method is composed of three parts: segmentation of face candidate regions, extraction of face candidate windows, and decision of veiling. In the segmentation of face candidate regions, face candidate regions are detected by finding skin color regions and facial components such as eyes, a nose and a mouth, which may have degraded colors, from an input image. In the extraction of face candidate windows, face candidate windows which have high potentials of faces are extracted in face candidate regions. In the decision of veiling, using an eigenface method, a face candidate window whose similarity with eigenfaces is maximum is determined and whether facial components of the face candidate window are veiled or not is determined in the similar way. Experimental results show that the proposed method yields better the detection rate by about $11.4\%$ in test DB containing color-degraded faces and veiled ones than a conventional method without considering color degradation and partial veiling.

Multi-Shape Retrieval Using Multi Curvature-Scale Space Descriptor (다중 곡률-단계 공간 기술자를 이용한 다중형상 검색)

  • Park, Sang Hyun;Lee, Soo-Chahn;Yun, Il-Dong
    • Journal of Broadcast Engineering
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    • v.13 no.6
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    • pp.962-965
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    • 2008
  • 2-D shape descriptors, which are vectors representing characteristics of shapes, enable comparison and classification of shapes and are mainly applied to image and 3-D model retrieval. Existing descriptors have limitations that they only describe shapes of single closed contours or lack in precision, making it difficult to be applied to shapes with multiple contours. Therefore, in this paper, we propose a new shape descriptor called Multi-Curvature-Scale Space that can be applied to shapes with multiple contours. Specifically, we represent the topology of the sub-contours in the multi-contour along with Curvature-Scale Space descriptors to represent the shapes of each sub-contours. Also, by allowing the weight of each component to be controlled when computing the distance between descriptors the weight, we deal with ambiguities in measuring similarity between shapes. Results of various experiments that prove the effectiveness of proposed descriptor are presented.

An Improved Face Detection Method Using a Hybrid of Hausdorff and LBP Distance (Hausdorff와 LBP 거리의 융합을 이용한 개선된 얼굴검출)

  • Park, Seong-Chun;Koo, Ja-Young
    • Journal of the Korea Society of Computer and Information
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    • v.15 no.11
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    • pp.67-73
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    • 2010
  • In this paper, a new face detection method that is more accurate than the conventional methods is proposed. This method utilizes a hybrid of Hausdorff distance based on the geometric similarity between the two sets of points and the LBP distance based on the distribution of local micro texture of an image. The parameters for normalization and the optimal blending factor of the two different metrics were calculated from training sample images. Popularly used face database was used to show that the proposed method is more effective and robust to the variation of the pose, illumination, and back ground than the methods based on the Hausdorff distance or LBP distance. In the particular case, the average error distance between the detected and the true face location was reduced to 47.9% of the result of LBP method, and 22.8% of the result of Hausdorff method.

The Importance of Salesperson's Characteristics and Criteria for Clothing Store Evaluation in Terms of Elderly Female Consumer Lifestyles -Focus on Females in their 60's and 70's living in Seoul- (여성 노년층 소비자의 라이프스타일 유형에 따른 판매원 속성 중요도와 의류 점포평가기준 -서울지역 거주 60-70대 여성을 중심으로-)

  • Hong, Kyung-Hee;Lee, Yoon-Jung
    • Journal of the Korean Society of Clothing and Textiles
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    • v.33 no.11
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    • pp.1781-1793
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    • 2009
  • This study classifies the lifestyle of elderly female consumers in their 60's and 70's and examines the influence of lifestyles on personal clothing purchase behavior. This paper classified the types of lifestyle and examined the influence of lifestyle types on the perceived importance of salesperson's characteristics and store evaluation criteria. A survey was conducted on 194 elderly females in their 60's and 70's living in Seoul. The SPSS 14.0 program was used to analyze the data. Descriptive statistics, factor analysis, reliability analysis, K-means cluster analysis, and one-way ANOVA followed by Duncan post hoc comparisons were conducted. The research results are as follow. First, in order to identify the lifestyle factors of elderly female consumers a factor analysis was conducted that indicated 9 factors. Second, as a result of the cluster analysis of lifestyle types, the respondents were classified into 'proactives', 'passive stagnants', 'independent misers', and 'conservative consumers'. Third, according to lifestyle, weight on 'appearance and image', 'professionalism', 'ethics', 'similarity', and 'customer orientation' abilities of the salesperson were significantly different. Fourth, in relation to the store evaluation criteria by lifestyle, a significant difference was found in the attention to 'physical service' by a salesperson.

Profiling of differential expressed proteins from various explants in Platycodon grandiflorum

  • Kim, Hye-Rim;Kwon, Soo Jeong;Roy, Swapan Kumar;Kamal, Abu Hena Mostafa;Cho, Seong-Woo;Kim, Hag Hyun;Boo, Hee Ock;Cho, Kab Yeon;Woo, Sun-Hee
    • Proceedings of the Korean Society of Crop Science Conference
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    • 2017.06a
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    • pp.131-131
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    • 2017
  • Though the Platycodon grandiflorum, has a broad range of pharmacologic properties, but the mechanisms underlying these effects remain unclear. In order to profile proteins from the nodal segment, callus, root and shoot, high throughput proteome approach was executed in the present study. Two-dimensional gels stained with CBB, a total of 84 differential expressed proteins were confirmed out of 839 protein spots using image analysis by Progenesis SameSpot software. Out of total differential expressed spots, 58 differential expressed protein spots (${\geq}2-fold$) were analyzed using MASCOT search engine according to the similarity of sequences with previously characterized proteins along with the UniProt database. Out of 58 differential expressed protein, 32 protein spots were up-regulated such as ribulose-1,5-bisphosphate carboxylase, endoplasmic oxidoreductin-1, heat stress transcription factor A3, RNA pseudourine synthase 4, cysteine proteinase, GntR family transcriptional regulator, E3 xyloglucan 6-xylosyltransferase, while 26 differential protein spots were down-regulated such as L-ascorbate oxidase precursor, late embryogenesis abundant protein D-34, putative SCO1 protein, oxygen-evolving enhancer protein 3. However, the frequency distribution of identified proteins using iProClass databases, and assignment by function based on gene ontology revealed that the identified proteins from the explants were mainly associated with the nucleic acid binding (17%), transferase activity (14%) and ion binding (12%). Taken together, the protein profile may provide insight clues for better understanding the characteristics of proteins and its metabolic activities in various explants of this essential medicinal plant P. grandiflorum.

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Automatic Segmentation of the meniscus based on Active Shape Model in MR Images through Interpolated Shape Information (MR 영상에서 중간형상정보 생성을 통한 활성형상모델 기반 반월상 연골 자동 분할)

  • Kim, Min-Jung;Yoo, Ji-Hyun;Hong, Helen
    • Journal of KIISE:Computing Practices and Letters
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    • v.16 no.11
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    • pp.1096-1100
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    • 2010
  • In this paper, we propose an automatic segmentation of the meniscus based on active shape model using interpolated shape information in MR images. First, the statistical shape model of meniscus is constructed to reflect the shape variation in the training set. Second, the generation technique of interpolated shape information by using the weight according to shape similarity is proposed to robustly segment the meniscus with large variation. Finally, the automatic meniscus segmentation is performed through the active shape model fitting. For the evaluation of our method, we performed the visual inspection, accuracy measure and processing time. For accuracy evaluation, the average distance difference between automatic segmentation and semi-automatic segmentation are calculated and visualized by color-coded mapping. Experimental results show that the average distance difference was $0.54{\pm}0.16mm$ in medial meniscus and $0.73{\pm}0.39mm$ in lateral meniscus. The total processing time was 4.87 seconds on average.