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기술사례 : 건설 소음,진동의 사전 영향성 분석에 관한 연구
안명석 ( Myung Seok Ahn ),김화일 ( Hwa Il Kim ),박주한 ( Ju Han Park ) 대한화약발파공학회 2014 화약발파 Vol.32 No.2
Although the construction noise and vibration are transient and intermittent, their impact on the surrounding environment is huge. Since the construction equipment noise and vibration is usually transmitted because of the long distance, the sound insulation and the proper design of anti-vibration measures are very difficult. The regulation requires that the noise and vibration caused by the construction equipments should be measured within 30m from the source, whereas the blasting noise and vibration should be measured at least 60m and 160m away from the source, respectively. Instead of the 2D modelling mainly conducted so far, the 3D analysis of noise and vibration with the consideration of the height and size of the building, mountains and hills in the vicinity of the source is necessary.
칼라 히스토그램과 엔트로피를 이용한 동영상 장면전환 검출
송현석,안강식,안명석,조석제 한국해양대학교 산업기술연구소 2002 연구논문집 Vol.19 No.-
In content-base video data retrieval, the detection for scene change is needed. Color histogram approaches are generally used. Color histogram approaches are simple and more robust to object and camera movements but they ignore the spatial information and fail when two different frames have similar histograms. We propose a new algorithm to use color histogram and entropy to enhance the false-positive occurred by brightness variation and the miss by similar color histogram. At the experiments, it is more robust to brightness variation and have spatial information.