1. Transform-based denoising and enhancement in medical x-ray imaging;Aach,2000
2. Anisotropic spectral magnitude estimation filters for noise reduction and image enhancement;Aach,1996
3. Spectral estimation filters for noise reduction in x-ray fluoroscopy imaging;Aach,1996
4. Spectral amplitude estimation-based x-ray image restoration: An extension of a speech enhancement approach;Aach,1998
5. A lapped directional transform for spectral image analysis and its application to restoration and enhancement;Aach;Signal Processing,2000