• Title/Summary/Keyword: Exaggerated Shading

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Cartoon Shading using virtual local light (가상 지역 광원을 이용한 카툰 쉐이딩)

  • Chung, Jae-Min;Yoon, Kyung-Hyun
    • 한국HCI학회:학술대회논문집
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    • 2008.02a
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    • pp.445-450
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    • 2008
  • 본 논문에서는 객체의 인식성을 높이기 위해 가상의 지역 광원을 사용한 카툰 렌더링 기법을 제안한다. 지역 광원은 각 메쉬의 기하 정보를 분석하여 배치되며 객체의 지역적인 음영 대비를 증가시켜 객체의 모양과 특정이 눈에 잘 띄도록 한다. 하지만 지역 광원을 사용한 쉐이딩 기법은 객체의 일부 영역에서 갈라지고 불연속적인 음영을 만들어 이미지의 질적 하락을 초래한다. 이러한 현상을 막기 위하여 곡률과 샐리언시의 개념을 사용하여 영역의 특성에 따라 차등적으로 지역 광원을 객체에 적용하였다. 곡률은 해당 영역의 기하적 특성을 구분하여 지역 광원에 의한 음영 대비 증감을 조정하고, 샐리언시는 영역의 중요도를 판별하여 곡률이 쉐이딩에 미치는 가중치를 조절한다.

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North Korean Defectors' depression through the CES-D and the Rorschach test (CES-D와 로샤검사를 통해 본 북한이탈주민의 우울감)

  • Jong-Nam Kim;Yun-Kyung Choi;Jung-Min Chae
    • Korean Journal of Culture and Social Issue
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    • v.14 no.2
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    • pp.41-61
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    • 2008
  • This study was performed to investigate the North Korean defectors's depression through the CES-D and a projective test simultaneously. So 40 North Korean defectors and 40 South Koreans participated in this study. The results are the following. First, the North Korean defectors demonstrated more higher CES-D scores than the South Koreans, while there were not significant differences in the Rorschach depression-related indexes, DEPI, CDI, S-CON between two groups. Second, at the analysis of the sex difference effect, women among the North Korean defectors showed the most high CDI index scores. In addition, we analyzed the mean differences between two groups for morbid content, shading response, achromatic response, human movement response, form dimension response, Lamda, and the number of total response. However, there are not significant differences between two groups for those variables, except for form dimension(FD) response. It suggested the probability that the North Korean women defectors could experience more psychological distress underlyingly than the North Korean men defectors. Third, most importantly, the correlation between CES-D and DEPI in the Rorschach test was significantly different in the two groups(the North Korean defectors and the South Koreans). In conclusion, the self-report of the North Korean defectors on depression could be exaggerated. So we should be cautious to interpret the self report results of the North Korean defectors.

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