• Journal of Digital Contents Society
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• v.15 no.3
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• pp.387-393
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• 2014

This study investigates the worlds most favorite SNS, the Facebook, with the theory of Empathy, that there will be an effect to users due to their characteristics. We approach the data scientifically with using an Eye tracker, by analyzing the vision and attention of users of Facebook with stimuli of whether it's an image or text filled contents in newsfeed of Facebook. With the result of an eye tracker, we cross analyzed with General Empathy Scale to compare that users limit of feeling of empathy gave effect on contents of Facebook. Discussion and implications are discussed in terms of empathy.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.24 no.8B
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• pp.1593-1600
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• 1999

This paper describes the acquisition modeling of an airborne target for target tracking simulation of infrared homing missiles. The modeling, of which key technologies are the sub-modeling for target infrared signature, atmospheric transmission, and receiver characteristics, shows the acquisition process of an airborne target under various tracking conditions determined by line-of-sight, distance, and atmospheric conditions. We confirm the validity of the modeling by applying it to simulations concerned with target tracking. The modeling gives a guideline to determine an optimum detector and a defection band for effective discrimination of the target among false targets.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2011.07a
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• pp.539-540
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• 2011

IPTV와 같은 양방향성을 가지는 방송 시청 환경에서 시청자들이 다수의 카메라로 획득된 다양한 시점의 방송 콘텐츠를 능동적으로 소비할 수 있도록 시점제어 서비스 플랫폼을 개발하였다. 시점제어 서비스 플랫폼은 사용자의 인터랙션에 따라 변화가 일어나는 장면을 저작하기 위한 시점제어형 장면 저작도구와 사용자의 인터랙션에 따라 장면을 재생하는 시점제어형 콘텐츠 재생기로 구성된다. 상기 장면 구성을 위해서 본 논문에서는 MPEG-4 LASeR 표준을 이용하였으며, 장면 정보와 AV 엘리먼트리 스트림을 포함하는 파일 포맷으로 ISO 베이스 미디어 파일 포맷을 사용하였다. 한편 저작자의 의도에 따라 장면을 자유롭게 구성할 수 있는 시점제어형 콘텐츠를 기존 TV 리모콘으로 제어하기 불편한 점이 있으므로, 사용자의 시선으로 장면을 제어할 수 있도록 시선추적 기술을 개발하였다.

• Journal of the Korea Institute of Military Science and Technology
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• v.26 no.1
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• pp.72-82
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• 2023

The EOTS(Electro Optical Tracking System) must have stabilization performance to provide high-quality images under disturbance environment. In this paper, we present a controller that can minimize the LOS error and has a simple structure. Hence, to evaluate the performance of this controller, analysis in the frequency domain and LOS error measurement are performed. In order to measure the LOS error without a 'rate table' that requires a lot of facility investment, we propose a design method for disturbance model that considers the operating environment of the EOTS. Finally, the performance of the stabilization algorithm is evaluated by the proposed disturbance model.

• The Journal of the Korea institute of electronic communication sciences
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• v.5 no.4
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• pp.399-405
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• 2010

In this paper, the movement faces the problem of the difficult points upon the gaze of the user that corrective action is needed to solve the identification system offers a new perspective. Using the Kalman filter using the position information of the current head position estimated the future. In order to determine the authenticity of the face features of the face structural element information and the processing time is relatively fast horizontal and vertical histogram analysis method to detect the elements of the face. and people grow and infrared bright pupil effect obtained by constructing a real-time pupil detection, tracking and pupil - geulrinteu vectors are extracted.

• The Journal of the Korea institute of electronic communication sciences
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• v.11 no.3
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• pp.331-338
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• 2016

In this paper, we propose a GRNN(: Generalized Regression Neural Network) algorithms for new eyes and face recognition identification system to solve the points that need corrective action in accordance with the existing problems of facial movements gaze upon it difficult to identify the user and. Using a Kalman filter structural information elements of a face feature to determine the authenticity of the face was estimated future location using the location information of the current head and the treatment time is relatively fast horizontal and vertical elements of the face using a histogram analysis the detected. And the light obtained by configuring the infrared illuminator pupil effects in real-time detection of the pupil, the pupil tracking was - to extract the text print vector.

• The Mathematical Education
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• v.60 no.2
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• pp.159-172
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• 2021

The purpose of this study is to compare and analyze the effects of physical manipulative and exploratory geometry software on the spatial sense for 5^th grade elementary school students in learning nets. For this purpose, ton experimental group used Geofix, an operational learning tool, and the experimental group used Cabri 3D, an exploratory geometry software to learn the nets of solids. The comparison group was learned by worksheet only without any manipulative or software. Spatial sense tests were conducted before and after to determine the level, and eye tracking were used to analyze the strategies of students in solving nets problems. As a result, it was confirmed that the using Geofix group was the most effective for the spatial sense, and Cabri 3D could also be a good tool for learning the nets of solids. In addition, after learning the nets of solids, the analytical strategy, which was the most effective strategy for students' solving strategies, increased. In the process of solving spatial tasks such as the spatial sense tasks, eye tracking technology become a very useful tool for exploring students' strategies, so it is expected that objective and useful data will be collected through more active use in the future.

• Proceedings of the KIEE Conference
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• 2003.07d
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• pp.2429-2431
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• 2003

능동 시각 시스템은 카메라 시선 방향을 조정할 수 있는 장치로, 기존의 고정식 스테레오 카메라가 가질 수 없는 여러 가지 장점으로 인해 최근 많은 연구가 진행되고 있다. 능동 시각 시스템을 이용하여 움직이는 물체를 추적하는 경우, 목표 위치가 제어 주기마다 바뀌게 되는데 이 때 시스템의 현재 속도를 고려하지 않는다면, 급격한 속도의 변화로 인해 저크(jerk)가 크게 발생하게 된다. 저크는 물체 추적 성능에도 영향을 미칠 뿐만 아니라, 전원단의 잡음 발생을 유발시켜 제어기의 동작을 방해하며, 시스템에 기계적인 손상을 주기도 한다. 이러한 문제점을 해소하기 위해 기존의 방법들은 스플라인이나 고차 다항식의 계산 방법을 사용하였으나 계산량의 복잡도로 인해 다축 제어가 필요한 능동 시각 시스템에서 구현하기가 어렵다. 본 논문에서는 삼각 함수를 이용한 종(bell) 모양의 속도 프로파일을 이용해서 저크 탄생을 억제할 수 있는 제어기 구조를 제안한다. 제안된 방법은 간단한 계산량으로 저가의 마이크로프로세서에서도 실시간으로 동작이 가능하며 임의의 시점에 임의의 속도로 움직이고 있는 시스템에 저크를 최소화할 수 있는 지령 속도를 만들어 낼 수 있다. 제안된 방법은 시뮬레이션과 실제 시스템에 적용하여 그 유용성을 검증하였다.

• Education of Primary School Mathematics
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• v.22 no.1
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• pp.1-12
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• 2019

This study examined the attention and attention shift of general students and mathematically gifted students about pattern by the types of mathematical patterns. For this purpose, we analyzed eye movements during the problem solving process of 5th general and mathematically gifted students using eye tracker. The results were as follows: first, there was no significant difference in attentional style between the two groups. Second, there was no significant difference in attention according to the generation method between the two groups. The diversion was more frequent in the incremental strain generation method in both groups. Third, general students focused more on the comparison between non-contiguous terms in both attributes. Unlike general students, mathematically gifted students showed more diversion from geometric attributes. In order to effectively guide the various types of mathematical patterns, we must consider the distinction between attention and attention shift between the two groups.

• Proceedings of the KIEE Conference
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• 2000.07d
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• pp.2711-2713
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• 2000

능동시각시스템의 가장 큰 장점은 주어진 환경에 대해 능동적으로 반응할 수 있는 자유도가 있어 이를 활용하여 필요한 정보를 쉽게 추출할 수 있다는 점이다. 이를 위해서는 능동시각시스템의 시선을 원하는 위치로 이동시키는 것이 필요한데, 시스템의 여자유도 인해 해가 무수히 많이 존재하게 된다. 본 논문에서는 이러한 여자유도 문제를 기구의 동역학적 특성을 제한 조건으로 하여 최적의 해를 구하고 이를 이용해 각 관절을 제어하는 제어기를 설계하는 방법에 대해 소개한다. 설계된 제어기는 제작과 실험을 통해 고속으로 움직이는 물체를 실시간으로 추적하는 성능을 보였다.