한국가시화정보학회:학술대회논문집
- 한국가시화정보학회 2005년도 추계학술대회 논문집
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- Pages.1-5
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- 2005
디지털 holographic PTV 측정을 위한 디지털 영상처리기법에 관한 연구
Digital image processing techniques of digital holographic PTV measurement
초록
The digital HPTV velocity field measurement consists of four steps: recording, numerical reconstruction, particle extraction and velocity extraction. In the velocity extraction process, we improved PTV algorithm to extract the displacement of particle each placed in 3D space. Because a digital recording device was used, some factors such as a spatial resolution, numerical aperture, and particle concentration can affect the performance of the digital HPTV. Especially, a particle concentration (
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