title: Defocus noise suppression with combined frame difference and connected component methods in optical scanning holography.
abstract: Random phase masks can transform the defocus noise into a speckle-like pattern in optical scanning holography (OSH). In this Letter, we presented a speckle reduction based on combined frame difference and connected component method in a random phase-coded OSH system. The image quality of the reconstructed sections is improved with better visibility.
authors.forename: Haiyan
authors.initials: H
authors.lastname: Ou
authors.forename: Huiyu
authors.initials: H
authors.lastname: Pan
authors.forename: Edmund Y
authors.initials: EY
authors.lastname: Lam
authors.forename: Bing-Zhong
authors.initials: BZ
authors.lastname: Wang