Optical image processing using acousto-optic modulators as programmable volume holograms: a review [Invited]
Yaping Zhang, Houxin Fan, Ting‐Chung Poon
Abstract
Bragg processing using a volume hologram offers an alternative in optical image processing in contrast to Fourier-plane processing. By placing a volume hologram near the object in an optical imaging setup, we achieve Bragg processing. In this review, we discuss various image processing methods achievable with acousto-optic modulators as dynamic and programmable volume holograms. In particular, we concentrate on the discussion of various differentiation operations leading to edge extraction capabilities.
Topics & Concepts
HolographyOpticsVolume (thermodynamics)Image processingVolume hologramComputer scienceFourier transformDigital image processingComputer visionImage (mathematics)PhysicsQuantum mechanicsOptical and Acousto-Optic TechnologiesPhotonic and Optical DevicesPhotorefractive and Nonlinear Optics