Conference Publication Details
Mandatory Fields
Molony K.;Maycock J.;Mc Donald J.;Hennelly B.;Naughton T.
Proceedings of SPIE - The International Society for Optical Engineering
A comparison of wavelet analysis techniques in digital holograms
Optional Fields
This study explores the effectiveness of wavelet analysis techniques on digital holograms of real-world 3D objects. Stationary and discrete wavelet transform techniques have been applied for noise reduction and compared. Noise is a common problem in image analysis and successful reduction of noise without degradation of content is difficult to achieve. These wavelet transform denoising techniques are contrasted with traditional noise reduction techniques: mean filtering, median filtering, Fourier filtering. The different approaches are compared in terms of speckle reduction, edge preservation and resolution preservation.
Grant Details