A panorama on multiscale geometric representations, intertwining spatial, directional and frequency selectivity

L Jacques, L Duval, C Chaux, G Peyré - Signal Processing, 2011 - Elsevier
The richness of natural images makes the quest for optimal representations in image
processing and computer vision challenging. The latter observation has not prevented the …

A review of adaptive image representations

G Peyré - IEEE Journal of Selected Topics in Signal Processing, 2011 - ieeexplore.ieee.org
Improving the modeling of natural images is important to go beyond the state-of-the-art for
many image processing tasks such as compression, denoising, inverse problems, and …

Image compression with anisotropic diffusion

I Galić, J Weickert, M Welk, A Bruhn, A Belyaev… - Journal of Mathematical …, 2008 - Springer
Compression is an important field of digital image processing where well-engineered
methods with high performance exist. Partial differential equations (PDEs), however, have …

Understanding, optimising, and extending data compression with anisotropic diffusion

C Schmaltz, P Peter, M Mainberger, F Ebel… - International Journal of …, 2014 - Springer
Galić et al.(Journal of Mathematical Imaging and Vision 31: 255–269, 2008) have shown
that compression based on edge-enhancing anisotropic diffusion (EED) can outperform the …

Towards PDE-based image compression

I Galić, J Weickert, M Welk, A Bruhn, A Belyaev… - … Workshop on Variational …, 2005 - Springer
While methods based on partial differential equations (PDEs) and variational techniques are
powerful tools for denoising and inpainting digital images, their use for image compression …

How to choose interpolation data in images

Z Belhachmi, D Bucur, B Burgeth, J Weickert - SIAM Journal on Applied …, 2009 - SIAM
We introduce and discuss shape-based models for finding the best interpolation data when
reconstructing missing regions in images by means of solving the Laplace equation. The …

Efficient data optimisation for harmonic inpainting with finite elements

V Chizhov, J Weickert - International Conference on Computer Analysis of …, 2021 - Springer
Harmonic inpainting with optimised data is very popular for inpainting-based image
compression. We improve this approach in three important aspects. Firstly, we replace the …

Deep spatial and tonal data optimisation for homogeneous diffusion inpainting

P Peter, K Schrader, T Alt, J Weickert - Pattern Analysis and Applications, 2023 - Springer
Diffusion-based inpainting can reconstruct missing image areas with high quality from
sparse data, provided that their location and their values are well optimised. This is …

[PDF][PDF] Partial encryption for image and video communication

HCH Cheng - 1998 - Citeseer
The use of image and video communication has increased dramatically in recent years.
When it is necessary to securely transmit data in limited bandwidth, both compression and …

Beating the quality of JPEG 2000 with anisotropic diffusion

C Schmaltz, J Weickert, A Bruhn - … , Jena, Germany, September 9-11, 2009 …, 2009 - Springer
Although widely used standards such as JPEG and JPEG 2000 exist in the literature, lossy
image compression is still a subject of ongoing research. Galić et al.(2008) have shown that …