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A pyramid approach to subpixel registration based on intensity
We present an automatic subpixel registration algorithm that minimizes the mean square intensity difference between a reference and a test data set, which can be either images (two-dimensional) or
Splines: a perfect fit for signal and image processing
  • M. Unser
  • Computer Science
    IEEE Signal Process. Mag.
  • 1 November 1999
TLDR
The article provides arguments in favor of an alternative approach that uses splines, which is equally justifiable on a theoretical basis, and which offers many practical advantages, and brings out the connection with the multiresolution theory of the wavelet transform.
Deep Convolutional Neural Network for Inverse Problems in Imaging
TLDR
The proposed network outperforms total variation-regularized iterative reconstruction for the more realistic phantoms and requires less than a second to reconstruct a <inline-formula> <tex-math notation="LaTeX">$512\times 512$ </tex- math></inline- formula> image on the GPU.
Sampling-50 years after Shannon
  • M. Unser
  • Computer Science
    Proceedings of the IEEE
  • 1 April 2000
TLDR
The standard sampling paradigm is extended for a presentation of functions in the more general class of "shift-in-variant" function spaces, including splines and wavelets, and variations of sampling that can be understood from the same unifying perspective are reviewed.
Texture classification and segmentation using wavelet frames
  • M. Unser
  • Mathematics
    IEEE Trans. Image Process.
  • 1 November 1995
This paper describes a new approach to the characterization of texture properties at multiple scales using the wavelet transform. The analysis uses an overcomplete wavelet decomposition, which yields
Design and validation of a tool for neurite tracing and analysis in fluorescence microscopy images
TLDR
The design and validation of a semiautomatic neurite tracing technique for accurate and reproducible segmentation and quantification of neuronal processes are described.
Optimization of mutual information for multiresolution image registration
TLDR
This work proposes a new method for the intermodal registration of images using a criterion known as mutual information and builds a multiresolution image pyramid around the unifying concept of spline-processing.
Sum and Difference Histograms for Texture Classification
  • M. Unser
  • Mathematics
    IEEE Transactions on Pattern Analysis and Machine…
  • 1986
TLDR
Experimental results indicate that sum and difference histograms used conjointly are nearly as powerful as cooccurrence matrices for texture discrimination.
A New SURE Approach to Image Denoising: Interscale Orthonormal Wavelet Thresholding
TLDR
An interscale orthonormal wavelet thresholding algorithm is described based on this new approach and its near-optimal performance is described by comparing it with the results of three state-of-the-art nonredundant denoising algorithms on a large set of test images.
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