This study is about determination of fire origin by using analysis of shadow that was recorded CCTV data at the fire scene. This analysis is based on straight and radiate nature of light. At fire experiment with about 1m flame, we conformed that 2-dimensional extension line is focused at the bottom of the fire. If the fire is burning at the same level with shadow, it indicate the point of origin exactly. In 3-dimensional analysis that connect extensional line between distinctive points the shadow and the objet, the line focused in the Ø 50cm-circle. We estimate the reason of that is because of the character of combustion of gases. The line indicate not the point of origin but the flame that is over the point of origin. thus, you have to consider the line indicate the flame when you do 3-dimensional analysis.

Abstract
 1. 서론
 2. 연구의 배경
  2.1 기존 발화부 추적방법
 3. 이론적 검토
  3.1 빛과 그림자
  3.2 그림자 분석 가능성에 대한 고찰
 4. 실험 방법
  4.1 실험 세트
 5. 결과 및 고찰
  5.1 조명과 난류화염의 차이
  5.2 평면적 분석
  5.3 입체적 분석
  5.4 화재사례의 적용
 6. 고 찰
 7. 결 론
 8. References
 저 자 소 개

• 이승훈(서울지방경찰청 과학수사계 화재폭발조사팀) | Seunghun, Lee Corresponding Author
• 최민기(가천대학교 소방방재공학과) | Minki, Choi
• 최돈묵(가천대학교 소방방재공학과) | Donmook, Choi