• International Journal of Contents
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• 제9권3호
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• pp.1-9
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• 2013

In this paper, we propose a fast and accurate system for detecting pedestrians from a static image. Histogram of Oriented Gradients (HOG) is a well-known feature for pedestrian detection systems but extracting HOG is expensive due to its high dimensional vector. It will cause long processing time and large memory consumption in case of making a pedestrian detection system on high resolution image or video. In order to deal with this problem, we use Principal Components Analysis (PCA) technique to reduce the dimensionality of HOG. The output of PCA will be input for a linear SVM classifier for learning and testing. The experiment results showed that our proposed method reduces processing time but still maintains the similar detection rate. We got twenty five times faster than original HOG feature.

• Journal of Platform Technology
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• 제6권4호
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• pp.18-25
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• 2018

This paper describes a real-time human and robot tracking method in Intelligent Space with multi-camera networks. The proposed method detects candidates for humans and robots by using the histogram of oriented gradients (HOG) feature in an image. To classify humans and robots from the candidates in real time, we apply cascaded structure to constructing a strong classifier which consists of many weak classifiers as follows: a linear support vector machine (SVM) and a radial-basis function (RBF) SVM. By using the multiple view geometry, the method estimates the 3D position of humans and robots from their 2D coordinates on image coordinate system, and tracks their positions by using stochastic approach. To test the performance of the method, humans and robots are asked to move according to given rectangular and circular paths. Experimental results show that the proposed method is able to reduce the localization error and be good for a practical application of human-centered services in the Intelligent Space.

• 통합자연과학논문집
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• 제15권4호
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• pp.163-169
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• 2022

Currently, many universities are implementing software-oriented universities and artificial intelligence-oriented universities to foster software-oriented manpower. We are educating students to design and produce computational thinking and coding directly with their major knowledge. However, computer education is not easy for non-majors, and there are many difficulties in coding. The results of responses from 104 students from the College of Health Sciences and College of Social Management who took the liberal arts computer at University H were analyzed using SPSS 26.0 version. In the liberal arts computer class for non-majors, a PJBL-based class plan was proposed. The effectiveness of PJBL-based classes was confirmed through a questionnaire for the improvement of artificial intelligence liberal arts courses. As a result, PJBL-based education showed statistically significant results in terms of satisfaction, effectiveness, and self-efficiency of classes regardless of major.

• 디지털산업정보학회논문지
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• 제11권3호
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• pp.179-200
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• 2015

Recent national policies National Competency Standards(NCS) to develop teaching-oriented education in the field of industry and learning is taking place. Plan to take advantage of the Internet and multimedia classes, information and communication technology (ICT) for ways to leverage the integration appearing in various forms. The purpose of this study is causal influence on the ARCS motivation theory can determine the basic psychology of human motivation factors and the desires of a typical human nature theory dealing with the psychological needs of interactivity and immersion is learning achievement and learning transfer and to validate the demonstration. By applying information and communication technology sector in the development of learning in information and communication equipment training program modules from a field study conducted at the NCS with a clear empirical and empirical research through the synchronization to the learner and to explore the possibility of generalization.

• 한국멀티미디어학회논문지
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• 제22권8호
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• pp.950-959
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• 2019

The purpose of this study was to investigate the effect of integrated teaching and learning method using augmented reality for effective promotion of child - friendly attitude and environmental preservation attitude and explored its applicability. For this purpose, based on the augmented reality fairy tale, we designed an experience - oriented integrated teaching and learning method such as reading book, story - telling, drawing, environmental conservation practice activity. The experimental group was divided into two groups: augmented reality reading fairy tales (A) and children's book reading fairy tales (B). First, interest, immersion, and empathy were higher in the application environment of integrated learning teaching method based on Augmented Reality. Second, there was no difference between the two groups in content understanding. Third, in terms of expressiveness, it was verified that various expressions were expressed in the applying environment of the integrated teaching - learning method based on augmented reality through drawing activities. Fourth, in practice activities, more students were practicing in the augmented reality - based integrated teaching - learning method applied environment, and the number of practice activities of individual students was also confirmed. This study suggests that the application of the integrated teaching and learning method can enhance the effect of education when using the smart teaching media using the augmented reality in early childhood education.

• 정보교육학회논문지
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• 제19권1호
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• pp.113-126
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• 2015

본 연구는 전통적 수업과 플립러닝 수업의 언어 상호작용 분석을 통해 두 수업의 특징과 차이를 규명하고자 하였다. 이를 위해 초등학교 5학년 사회과의 전통적 수업과 플립러닝 수업을 동영상으로 녹화하고 전사하였으며, 이를 플랜더스 언어상호작용 분석법으로 분석하였다. 연구 결과, 첫째, 전통적 수업은 교사의 발언이 주로 이루어지는 수업이고, 플립러닝 수업은 학생의 학습활동과 교사의 발언이 적절하게 이루어지는 수업이다. 둘째, 전통적 수업은 교사 중심의 지배적, 전제적, 제한적인 의사소통이 이루어지는 지시적 경향의 수업이고 플립러닝 수업은 전통적 수업에 비해 학생 중심의 통합적, 민주적, 포괄적, 허용적인 의사소통이 이루어지는 비지시적 경향의 수업이다. 셋째, 전통적 수업은 교사 강의 중심의 지식 내용 전달을 강조하는 수업이고 플립러닝 수업은 지식 내용 전달은 줄이고 학생의 활동과 발언을 강조하는 수업이다. 넷째, 전통적 수업의 언어 상호작용 형태는 교사의 강의와 질문에 학생이 단순 반응을 하는 단방향적인 의사소통이 주로 이루어지고 플립러닝 수업에서는 교사가 학생을 칭찬하거나 격려하고 학생의 생각을 수용하거나 사용하는 상호작용이 주로 이루어지는 수업이다.

• 정보교육학회논문지
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• 제15권3호
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• pp.483-492
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• 2011

최근 과학예술융합교육(Science, Technology, Engineering, Art and Mathematics; STEAM)의 중요성이 증대되고 있으며, 로봇활용교육도 좋은 대안으로 고려되고 있다. 현재 대부분의 초등 로봇활용교육은 방과후교실로 운영되고 있는데, 주로 과학과 로봇에 관심이 많은 남학생들을 중심으로 이루어지고 있다. 본 논문에서는 먼저 초등학생들이 로봇을 활용하여 STEAM에 대한 흥미를 유발하게 되는지를 살펴보고자 하였다. 로봇활용의 범주를 5가지(추상적 이해형, 구조중심형, 운동중심형, 지능중심형, 가치지향형)로 나눈 후, 초등정규교육과정을 분석하여 적용 가능한 모든 교과와 단원을 추출하였다. 그리고 추출된 단원에 대하여 정규수업시간 내에 수행이 가능한 로봇을 활용하는 교안을 개발하고, 5개월간 적용하였다. 분석 결과, 로봇활용교육이 STEAM에 대한 흥미를 유의미하게 증진시키는 것으로 나타났으며, 특히 여학생의 경우가 더 두드러졌다. 이와 더불어서, 정규 수업에서 로봇활용교육을 운영하는 데 있어서 당면하게 되는 문제점들에 대해 논하고, 향후 STEAM을 위한 로봇활용교육과 관련한 제언을 제시하였다.

• 한국IT서비스학회지
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• 제10권3호
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• pp.61-76
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• 2011

The purpose of this paper was to design and implement effective learning model for internet ethics education, following the learning principle and procedure of PBL(Problem-Based Learning) which is one of the constructivism teaching-learning theories(, and to apply it). In this learning model, online learning and face-to-face classes were systematically combined for achieving the teaching-learning goals and the main module for online learning run on Moodle, an open source LMS(Learning Management System). It is possible for learner to participate actively in creation of micro-contents and reorganize contents using various SNS(Social Network Service). The learner can achieve the learner-oriented learning and select micro-contents in order to reorganize the personalized learning contents to take advantage of SNS among learners. To examine educational effectiveness of the proposed learning model, an experimental study was conducted through the education content and method to the subjects of two classes in the second-grade of university located in OO city. 60 students(treatment group=30, control group=30) participated in the experiment. The result statistically verified that the proposed learning method is more effective in cultivating consciousness of internet ethics than the face-to-face PBL learning method. The results of this paper also showed that a lecture using blended learning is efficient in achieving learning performance and that learners responded positively(, which are indicating that the higher effectiveness of learning would be expected) by forming connectedness among learners using SNS. The results of this paper showed that a lecture using blended learning is effectiveness in achieving learning performance and that learners responded positively, which are indicating that the higher effectiveness of learning would be expected by forming connectedness among learners using SNS.

• 전자공학회논문지B
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• 제29B권8호
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• pp.1-6
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• 1992

This paper proposed a neural computer architecture for the learning of script character pattern recognition categories. Oriented filter with complex cells preprocess about the input script character, abstracts contour from the character. This contour normalized and inputed to the ART. Top-down attentional and matching mechanisms are critical in self-stabilizing of the code learning process. The architecture embodies a parallel search scheme that updates itself adaptively as the learning process unfolds. After learning ART self-stabilizes, recognition time does not grow as a function of code complexity. Vigilance level shows the similarity between learned patterns and new input patterns. This character recognition system is designed to adaptable. The simulation of this system showed satisfied result in the recognition of the hand written characters.

• 한국정보처리학회논문지
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• 제6권11호
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• pp.2989-3000
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• 1999

Until now, most Intelligent Tutoring Systems are lacking in the modularity, the extensibility of the system, and the flexibility in the dynamic environment due to the static exchanges of knowledge among modules. To overcome these flexibility in the dynamic due to the static exchanges of knowledge among modules. To overcome these problems, we will suggest, in this paper, a Distance Intelligent Tutoring Framework, called DELFOM, based on the multiagent to cope with the various and complicated learner's requests. We could make different types of learning systems by simply changing the contents of DELFOM External that is variant part of DELFOM. This framework, therefore, provides software reuse and the extensibility based on object-oriented paradigm. And we will propose two different distance learning systems using DELFOM. Therefore this framework gives the developer/the learner the effective and easy development/learning environment. DELFOM is implemented using CORBA and Java for the network transparency and platform independence.