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드뷔시 필터를 이용한 고속 프레넬릿 변환의 구현.
- Source :
- Journal of the Korea Institute of Information & Communication Engineering; Apr2017, Vol. 21 Issue 4, p820-828, 9p
- Publication Year :
- 2017
-
Abstract
- Service of digital hologram that has been recognized as a visual system for next generation requires various signal processing technologies. A transform is the most frequently used tool among signal processing techniques for 2-dimensional(D) and 3-D natural picture. A digital hologram has totally different property with a natural picture, so it is rarely efficient to apply transform tools used in 2-D image processing to a digital hologram. To overcome this a Fresnelet transform for a digital hologram has been proposed. We derive a Fresnelet transform by using the Daubechie’s filter after applying an unitary Fresnel transform to a wavelet basis function. We also implement the transform as types of device and kernel code to improve operational performance. In consideration of the average time that is required for a pixel we can have observed the performance is improved up to 242 and 30 times for using the (9,7) and (5,3) filters in case of using device code. [ABSTRACT FROM AUTHOR]
Details
- Language :
- Korean
- ISSN :
- 22344772
- Volume :
- 21
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Journal of the Korea Institute of Information & Communication Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 122840320
- Full Text :
- https://doi.org/10.6109/jkiice.2017.21.4.820