• 제목/요약/키워드: Issue Recognition

검색결과 393건 처리시간 0.026초

인증시스템을 위한 얼굴인식 기술 : 서베이 (Face Recognition System Technologies for Authentication System - A Survey)

  • 황윤철;문형진;이재욱
    • 중소기업융합학회논문지
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    • 제5권3호
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    • pp.9-13
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    • 2015
  • ICT 발달로 인해 면대면이 아닌 온라인 상에서 상대방의 신원을 확인하는 사용자인증 필요성이 증가하고 있다. 사용자인증은 보안의 기본으로 여러 분야에서 사용되고 있다. ID기반의 인증은 안전성과 분실 가능성이 많아 보안이 요구되어지는 곳에서는 2개 이상의 인증도구를 사용하게 된다. 최근에 ID나 OTP, SMS 인증보다 생체인증이 신뢰성 등에서 효과적인 측면으로 많이 고려되고 있다. 최근 생체인식 기술을 응용하여 적용되는 분야들이 다양하게 증가함에 따라 생체인식에 대한 적용도 모바일 결제 시스템, 지능형 CCTV, 출입국심사, 출입통제 등 다양한 분야에서 사용되고 있다. 생체인식으로는 지문, 홍체, 망막, 정맥 등에 이어 얼굴인식에 대한 연구가 활발히 이루어지고 있다. 본 논문에서는 얼굴인식 기술의 이해와 기술 동향를 비롯한 국내외 표준화 현황에 대해 알아보고 한다.

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Arabic Words Extraction and Character Recognition from Picturesque Image Macros with Enhanced VGG-16 based Model Functionality Using Neural Networks

  • Ayed Ahmad Hamdan Al-Radaideh;Mohd Shafry bin Mohd Rahim;Wad Ghaban;Majdi Bsoul;Shahid Kamal;Naveed Abbas
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제17권7호
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    • pp.1807-1822
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    • 2023
  • Innovation and rapid increased functionality in user friendly smartphones has encouraged shutterbugs to have picturesque image macros while in work environment or during travel. Formal signboards are placed with marketing objectives and are enriched with text for attracting people. Extracting and recognition of the text from natural images is an emerging research issue and needs consideration. When compared to conventional optical character recognition (OCR), the complex background, implicit noise, lighting, and orientation of these scenic text photos make this problem more difficult. Arabic language text scene extraction and recognition adds a number of complications and difficulties. The method described in this paper uses a two-phase methodology to extract Arabic text and word boundaries awareness from scenic images with varying text orientations. The first stage uses a convolution autoencoder, and the second uses Arabic Character Segmentation (ACS), which is followed by traditional two-layer neural networks for recognition. This study presents the way that how can an Arabic training and synthetic dataset be created for exemplify the superimposed text in different scene images. For this purpose a dataset of size 10K of cropped images has been created in the detection phase wherein Arabic text was found and 127k Arabic character dataset for the recognition phase. The phase-1 labels were generated from an Arabic corpus of quotes and sentences, which consists of 15kquotes and sentences. This study ensures that Arabic Word Awareness Region Detection (AWARD) approach with high flexibility in identifying complex Arabic text scene images, such as texts that are arbitrarily oriented, curved, or deformed, is used to detect these texts. Our research after experimentations shows that the system has a 91.8% word segmentation accuracy and a 94.2% character recognition accuracy. We believe in the future that the researchers will excel in the field of image processing while treating text images to improve or reduce noise by processing scene images in any language by enhancing the functionality of VGG-16 based model using Neural Networks.

영상 기반 센서 융합을 이용한 이쪽로봇에서의 환경 인식 시스템의 개발 (Vision Based Sensor Fusion System of Biped Walking Robot for Environment Recognition)

  • 송희준;이선구;강태구;김동원;서삼준;박귀태
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2006년도 심포지엄 논문집 정보 및 제어부문
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    • pp.123-125
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    • 2006
  • This paper discusses the method of vision based sensor fusion system for biped robot walking. Most researches on biped walking robot have mostly focused on walking algorithm itself. However, developing vision systems for biped walking robot is an important and urgent issue since biped walking robots are ultimately developed not only for researches but to be utilized in real life. In the research, systems for environment recognition and tole-operation have been developed for task assignment and execution of biped robot as well as for human robot interaction (HRI) system. For carrying out certain tasks, an object tracking system using modified optical flow algorithm and obstacle recognition system using enhanced template matching and hierarchical support vector machine algorithm by wireless vision camera are implemented with sensor fusion system using other sensors installed in a biped walking robot. Also systems for robot manipulating and communication with user have been developed for robot.

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모듈화된 얼굴인식 시스템을 이용한 성능 시험에 관한 연구 (A Study on the Performance Evaluation based on Modular Face Recognition System)

  • 홍태화;문현준;신용녀;이동근;김재성
    • 전자공학회논문지SC
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    • 제42권4호
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    • pp.35-44
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    • 2005
  • 생체인식 기술 중 변별력과 활용성, 편리성이 뛰어난 얼굴인식 기술은 출입통제나 금융관련 업무 처리와 같이 보안관련 응용분야에서 필요성이 급속도로 요구되고 있다. 따라서 얼굴인식 알고리즘의 발전과 더불어 현 기술의 상태를 파악하고 발전 방향을 제시하기 위한 성능 시험 방법에 대한 연구 또한 중대한 이슈로 부각되고 있다. 본 연구에서는 얼굴인식 시스템의 성능 시험을 위한 프로토콜의 설계 기준을 제시하고 XM2VTS 데이터베이스를 사용하여 PCA를 기반으로 한 인식 시스템을 디자인하여 Identification 시나리오와 Verification 시나리오 상에서 성능 시험 결과를 제시한다.

Public Policy Exception under Russian Law as a Ground for Refusing Recognition and Enforcement of Foreign Arbitral Awards

  • Andreevskikh, Liliia;Park, Eun-ok
    • 한국중재학회지:중재연구
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    • 제32권3호
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    • pp.47-70
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    • 2022
  • This paper studies legal regulation of the public policy exception in the Russian Federation and domestic judicial practice on the issue. It reviews current legislation and analyzes a number of recent court cases where an arbitral award rendered by a foreign arbitration body was refused recognition and enforcement based on public policy violation. By doing so, it contributes to the knowledge on the concept of public policy in the Russian legal system and how public policy can affect the process of recognition and enforcement of foreign arbitral awards on its territory. The review of court cases demonstrates different aspects of how the public policy exception can be applied by Russian arbitrazh courts. Such decisions can provide a clearer picture of the kinds of situation that can lead to invoking the public policy clause by the court. Also, it is of practical value as persons preparing to file a claim or to be a defendant in a Russian court can be required to present existing court decisions in support of their claim or defence.

Conflict Resolution: Analysis of the Existing Theories and Resolution Strategies in Relation to Face Recognition

  • A. A. Alabi;B. S. Afolabi;B. I. Akhigbe;A. A. Ayoade
    • International Journal of Computer Science & Network Security
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    • 제23권9호
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    • pp.166-176
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    • 2023
  • A scenario known as conflict in face recognition may arise as a result of some disparity-related issues (such as expression, distortion, occlusion and others) leading to a compromise of someone's identity or contradiction of the intended message. However, addressing this requires the determination and application of appropriate procedures among the various conflict theories both in terms of concepts as well as resolution strategies. Theories such as Marxist, Game theory (Prisoner's dilemma, Penny matching, Chicken problem), Lanchester theory and Information theory were analyzed in relation to facial images conflict and these were made possible by trying to provide answers to selected questions as far as resolving facial conflict is concerned. It has been observed that the scenarios presented in the Marxist theory agree with the form of resolution expected in the analysis of conflict and its related issues as they relate to face recognition. The study observed that the issue of conflict in facial images can better be analyzed using the concept introduced by the Marxist theory in relation to the Information theory. This is as a result of its resolution strategy which tends to seek a form of balance as result as opposed to the win or lose case scenarios applied in other concepts. This was also consolidated by making reference to the main mechanisms and result scenario applicable in Information theory.

의무기록 전공학생들의 환자 의료정보 보호인식과 실천인식에 관한 연구 (A Study on Students' Recognition and Practice of Patient's Medical Information Protection, who are majoring in Medical Records)

  • 정상진
    • 한국콘텐츠학회논문지
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    • 제16권1호
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    • pp.585-594
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    • 2016
  • 본 연구는 졸업 후 의무기록사로 근무하게 될 의무기록 전공 학생들의 환자 의료정보 보호인식과 실천인식을 조사 분석하여 정보의 중요성을 인식하게하고, 의무기록 교육과정 개발 및 전공교육과 의료정보 보호정책 수립 시 기초 자료를 제공하고자 하였다. 자료조사는 4개 대학에 재학생 340명을 대상으로 2015년 5월 18일부터 6월 5일까지 실시하였고, 자료 분석은 t-검정과 분산분석, 피어슨 상관분석, 다중회귀로 분석하였다. 연구결과 보호인식과 실천인식의 점수는 5점 만점에 각각 3.55점과 3.49점이었으며, 의료정보에 대한 보호인식에서는 학년, 전공만족, 의료정보 보호 교육경험, 법률인지, 실천인식에서는 학년, 전공만족, 교육경험, 의료정보 노출피해에서 유의한 차이를 보였다. 보호인식과 실천인식은 유의한 정(+)의 상관관계가 있었으며, 실천인식에 미치는 요인으로는 정보노출 인식과 사회적 쟁점 인식, 법제도 인식이 유의미한 정(+)의 영향을 미쳤다. 이러한 연구를 바탕으로 보호인식과 실천인식을 높이기 위해서 대학에서부터 의료정보의 유출로 인한 피해와 의무기록 관리의 중요성을 교육시켜 인식을 향상시켜 나가는데 기여할 수 있을 것으로 기대된다.

자율주행 제어를 위한 향상된 주변환경 인식 알고리즘 (Improved Environment Recognition Algorithms for Autonomous Vehicle Control)

  • 배인환;김영후;김태경;오민호;주현수;김슬기;신관준;윤선재;이채진;임용섭;최경호
    • 자동차안전학회지
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    • 제11권2호
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    • pp.35-43
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    • 2019
  • This paper describes the improved environment recognition algorithms using some type of sensors like LiDAR and cameras. Additionally, integrated control algorithm for an autonomous vehicle is included. The integrated algorithm was based on C++ environment and supported the stability of the whole driving control algorithms. As to the improved vision algorithms, lane tracing and traffic sign recognition were mainly operated with three cameras. There are two algorithms developed for lane tracing, Improved Lane Tracing (ILT) and Histogram Extension (HIX). Two independent algorithms were combined into one algorithm - Enhanced Lane Tracing with Histogram Extension (ELIX). As for the enhanced traffic sign recognition algorithm, integrated Mutual Validation Procedure (MVP) by using three algorithms - Cascade, Reinforced DSIFT SVM and YOLO was developed. Comparing to the results for those, it is convincing that the precision of traffic sign recognition is substantially increased. With the LiDAR sensor, static and dynamic obstacle detection and obstacle avoidance algorithms were focused. Therefore, improved environment recognition algorithms, which are higher accuracy and faster processing speed than ones of the previous algorithms, were proposed. Moreover, by optimizing with integrated control algorithm, the memory issue of irregular system shutdown was prevented. Therefore, the maneuvering stability of the autonomous vehicle in severe environment were enhanced.

A Study on Non-Contact Care Robot System through Deep Learning

  • Hyun-Sik Ham;Sae Jun Ko
    • 한국컴퓨터정보학회논문지
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    • 제28권12호
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    • pp.33-40
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    • 2023
  • 한국이 초고령사회로 진입하면서 노인 복지에 대한 필요성이 증가하고 있으나 현재 복지 인력 부족이 사회문제로 대두되고 있다. 이에 대한 해결책으로 노인의 사회적 고립감 완화와 위급 상황 시 비상 연락 등의 기능을 하는 노인 돌봄 로봇이 활발히 연구되고 있다. 하지만 이러한 기능들은 사용자의 접촉이 있어야만 작동하여 기존 노인 돌봄 로봇의 한계점으로 자리 잡고 있다. 본 논문에서는 기존의 문제를 해결하기 위해 상용화된 노인 돌봄 로봇과 카메라를 통해 직접적인 접촉 없이도 사용자와 상호작용할 수 있는 돌봄 로봇 시스템을 제안한다. 돌봄 로봇에 연결된 엣지 디바이스에 표정 인식 모델과 행동 인식 모델을 탑재하였고, 공공데이터를 통해 모델의 학습 및 성능검증을 진행했다. 실험 결과를 통해 표정 인식과 행동 인식의 성능이 각각 정확도 96.5%, 90.9%인 것을 확인할 수 있으며, 수행 시간의 경우에는 각각 50ms, 350ms인 것을 확인할 수 있다. 해당 결과는 제안한 시스템의 표정 및 행동 인식 정확도가 높고 추론 시간이 효율적임을 확인하며, 이는 비접촉 상황에서도 원활한 상호작용을 가능하게 한다.

일본법상 외국중재판정의 승인집행 -적용법규와 승인집행거부를 중심으로- (Recognition and Enforcement of Foreign Arbitral Awards in Japan: Conventions, National law and Refusal of Recognition and Enforcement)

  • 김언숙
    • 한국중재학회지:중재연구
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    • 제20권3호
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    • pp.25-46
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    • 2010
  • In spite of great interest and recent innovation of the legislative system in the Arbitration and other Alternative Dispute Resolution(ADR) system, In Japan there have been only a few case in which International commercial dispute was settled through the Arbitration compared to other countries. However, we can easily expect that foreign arbitral awards which need to be recognized and enforced in Japan will gradually increase and this makes it very important for us to review the Japanese legislative system regarding recognition and enforcement of foreign arbitral awards. In this paper, I focused on the relations between applicable laws(including convention) regarding recognition and enforcement of foreign arbitral awards in Japan and some issues concerning refusal of recognition and enforcement of foreign arbitral awards. Japan is a member state of several multilateral conventions concerning recognition and enforcement of foreign arbitral awards including the New York Convention of 1958 and at least 20 bilateral agreements which include provisions in relate to the recognition and enforcement of arbitral awards. Therefore there are some legal issues about the priority application between multilateral and bilateral agreements in relate to Article 7(1) of the New York Convention. In Japan, as I mentioned in this paper, there are incoherent opinions concerning this issue. To solve it substantially it would seem appropriate to build up concrete and explicit provisions concerning the application of priority between multilateral and bilateral agreements. On the other hand, in relate to the application between the New York Convention and National Law, it is necessary to take general approach regarding the priority application between Convention (Treaty) and National Law, considering the national application of conventions under the Constitutional System of each country. Among the grounds for non-recognition/enforcement, there are the ones that are decided under the law of the requested country, for instance, arbitrability and public policy. It would therefore be possible that some foreign arbitral awards would not be recognized in Japan especially relating to the arbitrability because its scope in Japan is not so large. Regarding the enforcement of awards annulled in their place of origin, some positive opinions in recent Japanese legal discussions, say that annulled awards should be enforced as a counter strategy of developed countries and judiciary discretion of the requested country would be needed. As mentioned in this paper, the recognition and enforcement of foreign arbitral awards is closely related to judicial policy of the requested country as the recognition and enforcement of foreign judgment is. Even though there existed uniform rules on recognition and enforcement of foreign arbitral awards like the New York convention, each country has different internal legal status of conventions under its own Constitutional System and tends to interpret the provisions based in its own profit. Therefore, it is necessary to review, in the light of conflict of laws, the national legislative system including legal status of conventions of the requested countries concerning recognition and enforcement of foreign arbitral awards.

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