• Title/Summary/Keyword: Marker Recognition

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Development of Cultural Content using a Markerless Tracking-based Augmented Reality (마커리스 트래킹 기반 증강현실을 이용한 문화콘텐츠 개발)

  • Lee, Young cheon
    • Smart Media Journal
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    • v.5 no.4
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    • pp.90-95
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    • 2016
  • Recently, the quality of cultural experience can be improved through a stereoscopic information service provided by the latest mobile-based Information Telecommunication technology without the human cultural commentators, which was used in order to enhance the understanding of our cultural heritage. The purpose of this paper is to produce contents that introduce cultural heritage using the Android-based GPS and augmented reality. In this paper we propose a culture content creation method that is based on location information such as user/cultural anomalies using GPS and augmented reality based on Markerless Tracking. Marker Detection Technology and Markerless Tracking Technology are used for smart phone's rapid recognition of augmented real world and accurate recognition according to the state of the cultural heritage. Also, the Google Map of Android is used to locate the user. The strength of this method lies in that it can be used for a variety of subjects while the existing methods are limited to certain kinds of augmented reality contents.

Identification of Korean Native Goat Meat using Amplified Fragment Length Polymorphism (AFLP) DNA Markers (Amplified Fragment Length Polymorphism (AFLP) DNA Marker를 이용한 한국 재래흑염소육 감별)

  • 정의룡
    • Food Science of Animal Resources
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    • v.22 no.4
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    • pp.301-309
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    • 2002
  • This study was carried out to develop the breed-specific DNA markers for breed identification of Korean native goat meat using amplified fragment length polymorphism (AFLP)-PCR techniques. The genomic DNAs of Korean native goat, imported black goat and four dairy goat breeds(Saanen, Alpine, Nubian and Toggenburg) were extracted from muscle tissues or blood. Genomic DNA was digested with a particular combination of two restriction enzymes with 4 base(Mse I and Taq I) and 6 base(EcoR I and Hind III) recognition sites, ligated to restriction specific adapters and amplified using the selective primer combinations. In AFLP profiles of polyacrylamide gels, the number of scorable bands produced per primer combination varied from 36 to 74, with an average of 55.5. A total of 555 bands were produced, 149(26.8%) bands of which were polymorphic. Among the ten primer combinations, two bands with 2.01 and 1.26 kb in M13/H13 primer and one band with 1.65 kb in E35/H14 primer were found to be breed-specific AFLP markers in Korean native goat when DNA bands were compared among the goat breeds. In the E35/H14 primer combination, 2.19, 2.03, 0.96 and 0.87 kb bands detected in imported black goat, 2.13 kb band in Saanen breed and 2.08 kb band in Nubian breed were observed as breed-specific bands showing differences between goat breeds, respectively. The E35/H14 primer combination produced four DNA bands distinguished between Korean native goat and Saanen breed. The is study suggested that the breed specific AFLP bands could be used as DNA markers for the identification of Korean native goat meat from imported black goat and dairy goat meats.

Quantitative and Pattern Recognition Analyses for the Quality Evaluationof Herba Epimedii by HPLC

  • Nurul Islam, M.;Lee, Sang-Kyu;Jeong, Seo-Young;Kim, Dong-Hyun;Jin, Chang-Bae;Yoo, Hye-Hyun
    • Bulletin of the Korean Chemical Society
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    • v.30 no.1
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    • pp.137-144
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    • 2009
  • In this study, quantitative and pattern recognition analyses for the quality evaluation of Herba Epimedii using HPLC was developed. For quantitative analysis, five major bioactive constituents, hyperin, epimedin A, epimedin B, epimedin C, and icariin were determined. Analysis was carried out on Capcell pak $C_{18}$ column ($250{\time}4.6$ mm, 5 ${\mu}m$) with a mobile phase of mixture of acetonitrile and 0.1% formic acid, using UV detection at 270 nm. The linear behavior was observed over the investigated concentration range (2-50 ${\mu}g/mL;\;r_2\;>$ 0.99) for all analytes. The intraand inter-day precisions were lower than 4.3% (as a relative standard deviation, RSD) and accuracies between 95.1% and 104.4%. The HPLC analytical method for pattern recognition analysis was validated by repeated analysis of one reference sample. The RSD of intra- and inter-day variation of relative retention time (RRT) and relative peak area (RPA) of the 12 selected common peaks were below 0.8% and 4.7%, respectively. The developed methods were applied to analysis of twenty Herba Epimedii extract samples. Contents of hyperin, epimedin A, epimedin B, epimedin C, and icariin were calculated to be 0$\sim$0.79, 0.69$\sim$1.91, 0.93$\sim$9.58, 0.65$\sim$3.05, and 2.43$\sim$11.8 mg/g dried plant. Principal component analysis (PCA) showed that most samples were clustered together with the reference samples but several apart from the main cluster in the PC score plot, indicating differences in overall chemical composition between two clusters. The present study suggests that quantitative determination of marker compounds combined with pattern-recognition method can provide a comprehensive approach for the quality assessment of herbal medicines.

Game-type Recognition Rehabilitation System based on Augmented Reality through Object Understanding (증강현실 기반의 물체 인식을 통한 게임형 인지 재활 시스템)

  • Lim, Myung-Jea;Jung, Hee-Woong;Lee, Ki-Young
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.11 no.3
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    • pp.93-98
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    • 2011
  • In this paper, we propose a game type cognitive rehabilitation system using marker-based augmented reality system for intelligence development of user. Existing cognitive rehabilitation with the help of others, or a keyboard or mouse operation required to relieve the discomfort, the marker card only control it led and is advanced the method which it applied. As a result, obtained through the camera calibration for image processing, and a Augmented Reality as well as mark detection. In this paper we presented a complete rotation of the model after checking through the whole form, through a combination of multiple markers by completing the interactive objects proceed with the rehabilitation process in a manner required by the target of interest to human rehabilitation and treatment.

Implementation of URL Connecting Application Service Platform Based on Recognition of AR Maker Using LED Panel and Smartphone (LED 전광판과 스마트폰을 이용한 AR 마커인식 기반의 URL 연결 서비스 플랫폼 구현)

  • Park, Kunwon;Hwang, Junho;Yoo, Myungsik
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.38C no.8
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    • pp.692-698
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    • 2013
  • As the mobile marketing through the smartphone has gradually increased, the smartphone application services using the AR marker, QR codes and augmented reality have attracted much attention. Furthermore the outdoor advertising is migrated to LED signage, which brings the visible light wireless communication technologies to the trial for mobile marketing. In this paper we present the implementation of AR marker-based URL access application services through smartphone camera using visible-light wireless communication technologies. We analyze the performance of the implemented system in terms of connection time and success rate.

Development and Validation of HPLC-PDA Method and Pattern Recognition Analyses Using Eight Marker Compounds for the Quality Control Between the Seeds of Cuscuta chinensis Lam. and Cuscuta japonica Choisy

  • Nguyen, Duc Hung;Zhao, Bing Tian;Le, Duc Dat;Ma, Eun Sook;Min, Byung Sun;Woo, Mi Hee
    • Natural Product Sciences
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    • v.25 no.4
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    • pp.334-340
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    • 2019
  • Cuscuta chinensis Lam. and Cuscuta japonica Choisy are parasitic plants. C. chinensis seeds were traditionally used for treatment of kidney and liver deficiencies. C. japonica seeds were used as tonic medicine to improve liver function and strengthen kidneys, treatment of high blood pressure, chronic diarrhea, and sore eyes. Cuscutae Semen are seeds of only C. chinensis in Korean Herbal Pharmacopoeia (K.H.P.). The developed HPLC-PDA method easily, accurately, and sensitively quantified using eight marker compounds [hyperoside (1), astragalin, (2), quercetin (3), kaempferol (4), chlorogenic acid (5), 3,4-di-O-caffeoylquinic acid (6), 1,5-di-O-caffeoylquinic acid (7), and 4,5-di-O-caffeoylquinic acid (8)]. In addition, the method may be used to distinguish seeds between C. chinensis Lam. and C. japonica Choisy. Furthermore, the result from the current study was applied to clarify samples between steam processed and unprocessed samples of C. chinensis by pattern analysis.

Expression and characterization of the recombinant human galectin-3 (유전자 재조합 Human galectin-3의 발현과 성상)

  • Kim, Byung-gyu;Woo, Hee-jong
    • Korean Journal of Veterinary Research
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    • v.37 no.3
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    • pp.547-554
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    • 1997
  • Galectin-3 is known as an animal ${\beta}$-galactoside-binding lectin charicterized with S-type carbohydrate recognition domain. It plays a role in growth, adherence and movement of cells. It is, also, related to the cell transformation and metastasis of tumor cells. In this study, we have expressed and purified recombinant human galectin-3 (rHgalectin-3) using E coli system and asialofetuin affinity chromatography for the future development of monoclonal antibody to Hgalectin-3, which is suggested as the tumor marker for the gastric and thyroid gland cancers. Expressed protein was confirmed as the Hgalectin-3 by immunoblot with cross-reactive murine monoclonal antibody. Lectin activity and specificity of purified protein were, also, confirmed by the competitive inhibition with galectin-3 specific carbohydrate, lactose. Like physiological galectin-3, lectin activity of the molecule was not changed in nonreduced condition. Dimer formation, furthermore, was observed at high concentration of the protein even in the reduced condition, which is well known in physiological galectin-3. These results showed purified rHgalectin-3 has the same activity and molecular nature compared to the physiological galectin-3.

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Discrimination of Korean Agaricus bisporus cultivars using CAPS markers (CAPS 마커를 이용한 국내 개발 양송이 품종 구분)

  • Lee, Hwa-Yong;An, Hyejin;Oh, Youn-Lee;Jang, Kab-Yeul;Chung, Jong-Wook
    • Journal of Mushroom
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    • v.19 no.4
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    • pp.336-340
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    • 2021
  • The cleaved amplified polymorphic sequence (CAPS) marker uses a restriction enzyme recognition site resulting from single nucleotide polymorphisms and insertions and deletions on the DNA sequence. This technique does not require expensive equipment, the process is simple, and clear results can be obtained reliably. In this study, Agaricus bisporus cultivars SaeA, SaeDo, SaeHan, SaeYeon, SaeJeong, Dodam, Seolgang, Dahyang, Hogam, and Hadam developed in Korea were discriminated using four CAPS markers. Our results indicated that it is possible to distinguish the ten cultivars and determine the genetic diversity among them.

MCM3 as a Novel Diagnostic Marker in Benign and Malignant Salivary Gland Tumors

  • Ashkavandi, Zohreh Jaafari;Najvani, Ali Dehghani;Tadbir, Azadeh Andishe;Pardis, Soheil;Ranjbar, Mohammad Ali;Ashraf, Mohammad Javad
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.6
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    • pp.3479-3482
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    • 2013
  • Background: Proliferation markers widely have been used to diagnose and determine the behaviour and prognosis of benign and malignant tumours. Minichromosome maintenance 3 (MCM3) is a novel proliferation marker. The aim of this study was to evaluate and compare MCM3 with Ki-67 in diagnosis of salivary gland tumours. Materials and Methods: In this retrospective study, immunohistochemical expression of MCM3 and Ki-67 was evaluated in 15 pleomorphic adenomas (PA), 17 mucoepidermoid carcinomas (MEC) and 18 adenoid cystic carcinomas (ADCC). Labeling indices (LIs) for the two markers were calculated and compared. Results: MCM3 and Ki-67 LIs were significantly higher in MEC and ADCC compared to PA. The LI of MCM3 was significantly higher than that of Ki-67 in MEC and PA. There was no significant difference between the two markers in ADCC. A cut-off point of 8% with 74.3% sensitivity and 93.3% specificity for MCM3 was obtained to discern between benign and malignant tumors. Conclusions: These results suggest that MCM3 might be a useful proliferation marker for differential diagnosis and recognition of clinical behavior of salivary gland tumors.

UI Elements Identification for Mobile Applications based on Deep Learning using Symbol Marker (심볼마커를 사용한 딥러닝 기반 모바일 응용 UI 요소 인식)

  • Park, Jisu;Jung, Jinman;Eun, Seungbae;Yun, Young-Sun
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.20 no.3
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    • pp.89-95
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    • 2020
  • Recently, studies are being conducted to recognize a sketch image of a GUI (Graphical User Interface) based on a deep learning and to make it into a code implemented in an application. UI / UX designers can communicate with developers through storyboards when developing mobile applications. However, UI / UX designers can create different widgets for ambiguous widgets. In this paper, we propose an automatic UI detection method using symbol markers to improve the accuracy of DNN (Deep Neural Network) based UI identification. In order to evaluate the performance with or without the symbol markers, their accuracy is compared. In order to improve the accuracy according to of the symbol marker, the results are analyzed when the shape is a circle or a parenthesis. The use of symbol markers will reduce feedback between developer and designer, time and cost, and reduce sketch image UI false positives and improve accuracy.