• Title/Summary/Keyword: 프레지

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A study of the impact of Prezi on learning motives (프레지 학습이 학습동기에 미치는 영향에 관한 연구)

  • Nam, Choong Mo;Kim, Chong Woo
    • Journal of The Korean Association of Information Education
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    • v.17 no.1
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    • pp.93-100
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    • 2013
  • Currently the mose used software to make presentation is Powerpoint. But a few learners only can use that program to present. Lately free software called Prezi is available to many users. Prezi is free to general users. To evaluate the experiences of making presentaion by Powerpoint and Prezi effects on the learning motive is the purpose of study. In conclusion, my goal of this study is that by using convenient Prezi, I would like to prove that it will really analyze the learning motives(attention, relevance, confidence, satisfaction) when learners is being thaught through Prezi not unuseful Powerpoint.

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Combined Approach of Subjective Survey and Objective EEG Measurement to Measure Presence Increment using Color in Moving Images (영상콘텐츠에서의 색감이 프레즌스 증감에 미치는 영향 측정을 위한 설문지와 뇌파측정의 결합측정기법)

  • Jeon, Seongsin;Kim, Seong Whan
    • Journal of the Korea Computer Graphics Society
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    • v.23 no.5
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    • pp.51-56
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    • 2017
  • In this paper, we define "presence" as a physiological and emotional feeling which feels that he or she is immerged in a specific artworks when he/she is very interested in the artwork. To measure the presence, we use a combined approach of subjective survey and brain signals (EEG). Subjective survey includes PQS (presence questionnaire survey) and IDQS (individual differences questionnaire survey). We experimented with 30 random populations, and we performed Cronbach's ${\alpha}$ test to verify the validity of the survey results. We also cross-checked the survey with EEG test for the populations. From our experimentation, we conclude that opponent color (e.g. yellow and blue) makes strong excitation on presence. In this paper, we believe that there are strong presence even in the abstract images, and it can be stronger than photo-realistic images if we well-design color, forms on the artwork.

"The Light": An Experimental Moving Image which uses Color, Trace, and Interactivity of Light to Measure Quantitative Presence ("The Light": 정량적 프레즌스 측정을 위한 빛의 색, 빛의 움직임, 빛과의 인터랙션을 이용한 추상영상 실험)

  • Jeon, Seongsin;Kim, Seong Whan
    • KIPS Transactions on Software and Data Engineering
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    • v.6 no.12
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    • pp.587-592
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    • 2017
  • In this paper, we raise a question: what makes presence in artistic works. Presence has been defined as a physiological and emotional feeling which feels that he or she is immerged in a specific artworks when he/she is very interested in the artwork. We design and implemented an abstract media art "The Light" which uses the color, trace, and interactivity of light to measure quantitative presence. Frequency spectrum of light on specific object which we perceive makes color; Motion of light and its impact on object makes shape which perceived in our human visual system; Interactivity or perceived distance between object and observer makes intensity of perception. We experimented our images with subjective survey which includes PQS (presence questionnaire survey) and objective test using brain signals (EEG). From our interactive experimental moving images tested on 30 subject, we conclude that we can make more presence as we interact more with images. Photo-realistic images is just pass-by and it is transformed to abstract images, as we more focused on the images, and the essential components of the abstraction includes color, trace, and interaction with subjects.

Reconstruction of 3D Ultrasound Image from Freehand Scanned Frames Using Lateral Correlation Functions (측면거리 상관함수를 이용한 수동주사 초음파 영상 프레임들로부터의 3차원 영상 재구성)

  • 이준호;김남철;김상현
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.26 no.8B
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    • pp.1152-1160
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    • 2001
  • 본 논문에서는 수동주사로 얻은 2차원 연속 프레임으로 3차원 초음파 영상 재구성을 위한 연속 프레임의 프레임간 거리 추정 방법을 제안하였다. 수동주사로 얻은 연속 프레임은 프레임간 거리가 불균일하기 때문에 이를 그대로 3차원 영상으로 재구성하면 실제 인체 장기의 형태와 다른 영상을 얻게 된다. 제안한 알고리듬에서는 연속 프레임의 프레임간 거리를 추정하기 위하여 매 프레임의 블록별 측면거리 상관함수를 얻고, 측면거리 상관함수들이 프로브의 진행축과 초음파 센서의 배열축이 이루는 평면상에서 등방성을 가진다는 가정 하에 인접 프레임 내의 각 블록간의 프레임간 거리를 추정하였다. 인접 프레임간 추정거리는 프레임 내에서 블록단위로 추정된 프레임간 거리를 평균하여 얻었다. 실험 결과, 제안한 알고리듬의 프레임간 추정거리 곡선은 기준 진행거리 상관함수를 이용한 방법의 추정거리 곡선에 비해서 실제 프레임간 거리 곡선에 가까웠고, SNR 비교에서 제안한 방법이 기존의 방법에 비해 좋은 결과를 보였다. 그리고, 기존의 알고리듬에 비해 제안한 알고리듬으로 재구성한 3차원 영상이 원영상에 더 흡사한 것을 볼 수 있었다.

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Semantic Network Analysis of 'Young-Kl(panic buying)': Focusing on News Source Diversity ('영끌' 보도에 대한 언어망 분석: 뉴스 정보원 다양성을 중심으로)

  • Lee, Jeng Hoon
    • The Journal of the Korea Contents Association
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    • v.21 no.12
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    • pp.23-33
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    • 2021
  • This study analyzed news articles about 'Young-Kl' reported by 11 media outlets, identifying news frames and quotation frames. Using a semantic network analysis, this study inspected the quotations frames and measured the frequency of the quotes and sources types. Also, the concentration index of the frames was measured. The results showed that news frames consisted of 10 topics and quotation frames consisted of 14 topics. Although the differences among quotation frames by media as well as by source types were observed, the concentration index of sources such as government, political arena, and business appeared high. Therefore, this study suggested that numerical diversity of news sources would not establish the diversity of news frames.

Practical Reading of Gilles Deleuze on Frame from Filmmaking Perspective (들뢰즈의 프레임: 영화제작 관점에서 읽기)

  • Kim, Jung-Ho;Kim, Jae Sung
    • The Journal of the Korea Contents Association
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    • v.19 no.11
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    • pp.527-548
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    • 2019
  • For Deleuze, the frame is a closed system with numerous subsets of information. the frame can be defined by mathematics and physics. it is a geometric system of equilibrium and harmony with variables or coordinates. like paintings, Linear perspective represents a three-dimensional depth in a two-dimensional plane through vanishing points, horizontal lines in the frame. Linear perspective makes it possible to assume the infinity towards the vanishing point and the infinity towards the outside of the frame, the opposite of the vanishing point. Not only figures and lines in the drawing paper, but also the space between the figures and lines in the drawing paper was recognized. that is space, the 3rd dimension. with the centripetal force and centrifugal force of the frame, frame follow the physical rules of power and movement. de framing is against the dominant linear perspective and central tendency of the frame. The film contains four-dimensional time while reproducing three-dimensional space in two dimensions. It may be that the outside of the frame, or outside the field of view, contains thought, the fifth dimension.

A Study on the frame within a frame as a Digital Game Design Tool (디지털 게임 설계 장치로서의 다중 프레임 연구)

  • Kim, Da-In;Sung, Jung-Hwan
    • Journal of Korea Game Society
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    • v.21 no.6
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    • pp.111-124
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    • 2021
  • Starting with painting, it is the frame that plays the main role in movies, cartoons, and games as well as the act of attracting the audience's attention. Knowing about a frame is to be able to read and use the frame. Therefore, this paper deals with frames of digital games, especially multiple frames that complement the limited configuration of primary frames. In this paper, frame within frames are classified into structural frames, which are the basic components of the game, temporal frames, which reflect player behavior, and surface frames representing the characteristics of existing visual media. Through this, we examine the aspects of frame within a frame as digital game design equipment. This paper is meaningful in that it derives the possibility of using frame within a frame of games in the future and provides a mechanism for frame within a frame analysis.

The method of frequency offset estimation and frame synchronization with chirp signal in OFDM system (OFDM 시스템에서 첩(chirp) 신호를 이용한 주파수 옵셋 추정 및 프레임 동기 방안)

  • 박종욱;강건우;황인호;윤장홍;홍재근
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.25 no.12B
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    • pp.2025-2032
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    • 2000
  • OFDM을 이용한 통신 시스템에서 주파수 옵셋은 부채널 간의 간섭을 유발하고, 수신 신호의 진폭과 위상을 왜곡시키며, 프레임 옵셋은 수신 신호의 위상을 변화시킨다. 본 논문에서는 2개의 첩 신호(chirp signal)를 이용하여 주파수 옵셋 추정 및 프레임 동기가 동시에 가능한 알고리즘을 제안한다. 제안한 방안은 프레임 동기를 위하여 1개의 첩 신호를 이용하는 Hazy 방안보다 주파수 옵셋이 발생할 경우 프레임 동기 성능을 훨씬 개선하였고, 동기에 주파수 옵셋 추정도 가능하였다. 컴퓨터 시뮬레이션을 통하여 제안한 알고리즘의 성능을 확인하였다.

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Comparison of News Frames between National Newspapers and Local Newspapers about Selecting a Site of National Project (국책사업입지선정 관련 중앙·지역신문 간 기사프레임 비교)

  • Lee, Seong-Neung
    • The Journal of the Korea Contents Association
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    • v.11 no.8
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    • pp.488-498
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    • 2011
  • This study is an analysis of how national newspapers and local newspapers frame news contents over selecting of the site of International science-business belt. The results of analysis are as follows. First, in national newspapers, 'incompetent government frame' to criticize inconsistent policies and 'relapse prevention frame' were most commonly found. Second, newspapers in the region chosen as the site of an International Science-business belt and newspapers in the region not chosen showed a severe contrast in news frames. Most of news frames in the region chosen as the site of an International science-business belt were 'development frame' and 'performance frame'. On the other hand, newspapers in the region not chosen produced 'incompetent government frame' and 'protest frame' more than others. Finally, local newspapers in the area not related with the site of an International Science-business belt did not even deal with such an articles. These results show that to win large-scale national projects such as PIMFI facilities, local governments have been too much competitive and connected to a conflict.

An Optimal Algorithm for Computing a Sequence of Silhouettes (연속적인 윤곽선 계산을 위한 최적 알고리즘)

  • Kim, Ku-Jin;Baek, Nak-Hoon
    • Journal of the Korea Computer Graphics Society
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    • v.9 no.4
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    • pp.17-24
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    • 2003
  • 본 논문에서는 주어진 경로를 따라 이동하는 관측점으로부터 다면체 모델의 윤곽선을 계산하기 위한 최적 알고리즘 (optimal algorithm)으로서 점증적 갱신 알고리즘 (incremental update algorithm)을 제안한다. 전처리 과정에서는, 윤곽선을 계산할 프레임(frame)의 갯수가 f라 할 때 각 프레임 j, 0 $\leq$ j < f,에 대해 그 전 프레임 j - 1 에서 이미 구한 윤곽선에 추가되거나 제거되어야 할 에지의 리스트를 계산한다. 이것은 모델의 각 에지가 윤곽선에 포함되기 시작하는 프레임과 윤곽선으로부터 제거되는 프레임의 범위를 계산함으로써 수행된다. 점증적 갱신 알고리즘은 전처리 과정에서 구성한 에지 리스트를 이용하여 f 프레임의 윤곽선을 효율적이고 안정적으로 추출할 수 있으며, 각 프레임마다 전 프레임의 윤곽선 에지 리스트와 여기에 추가 또는 제거되어야 할 에지의 리스트만을 검색하므로 시간 복잡도(time complexity)의 측면에서 최적 알고리즘이다.

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