We introduce an expectation-maximization (EM) algorithm for image inpainting based on a penalized likelihood formulated using linear sparse representations. Taking advantage of the sparsity of representations, a regularization through a prior penalty is imposed on the reconstructed coefficients. From a statistical point of view, the inpainting can be viewed as an estimation problem with missing data. The EM framework is a general iterative algorithm for ML estimation in such situations. The EM framework gives a principled way to establish formally the idea that missing samples can be recovered based on sparse representations. Furthermore, owing to its well known theoretical properties, the EM algorithm allows to investigate the convergence behavior of the inpainting algorithm.
EM algorithm for sparse representation-based image inpainting
2005-01-01
367062 byte
Conference paper
Electronic Resource
English
Em Algorithm for Sparse Representation-Based Image Inpainting
British Library Conference Proceedings | 2005
|An Image Inpainting Algorithm Based on Sparse Modeling with Double Constraints
British Library Online Contents | 2012
|Efficient Wavelet Image Inpainting Algorithm Based on Pixel Weight Values
British Library Online Contents | 2015
|An Image Inpainting Algorithm for 3D Core Images
British Library Online Contents | 2014
|