Efficient segmentation: Learning downsampling near semantic boundaries

D Marin, Z He, P Vajda, P Chatterjee… - Proceedings of the …, 2019 - openaccess.thecvf.com
Many automated processes such as auto-piloting rely on a good semantic segmentation as
a critical component. To speed up performance, it is common to downsample the input …

Evaluating the true potential of diffusion-based inpainting in a compression context

P Peter, S Hoffmann, F Nedwed, L Hoeltgen… - Signal Processing …, 2016 - Elsevier
Partial differential equations (PDEs) are able to reconstruct images accurately from a small
fraction of their image points. The inpainting capabilities of sophisticated anisotropic PDEs …

Optimising spatial and tonal data for PDE-based inpainting

L Hoeltgen, M Mainberger, S Hoffmann… - Variational …, 2016 - degruyter.com
Some recent methods for lossy signal and image compression store only a few selected
pixels and fill in the missing structures by inpainting with a partial differential equation (PDE) …

Towards PDE-based video compression with optimal masks prolongated by optic flow

M Breuß, L Hoeltgen, G Radow - Journal of Mathematical Imaging and …, 2021 - Springer
Lossy image compression methods based on partial differential equations have received
much attention in recent years. They may yield high-quality results but rely on the …

[HTML][HTML] State-of-the-Art Trends in Data Compression: COMPROMISE Case Study

D Podgorelec, D Strnad, I Kolingerová, B Žalik - Entropy, 2024 - mdpi.com
After a boom that coincided with the advent of the internet, digital cameras, digital video and
audio storage and playback devices, the research on data compression has rested on its …

Theoretical foundation of the weighted laplace inpainting problem

L Hoeltgen, A Kleefeld, I Harris, M Breuss - Applications of mathematics, 2019 - Springer
Laplace interpolation is a popular approach in image inpainting using partial differential
equations. The classic approach considers the Laplace equation with mixed boundary …

Sparse approximation of 3D meshes using the spectral geometry of the Hamiltonian operator

Y Choukroun, G Pai, R Kimmel - Journal of Mathematical Imaging and …, 2018 - Springer
The discrete Laplace operator is ubiquitous in spectral shape analysis, since its
eigenfunctions are provably optimal in representing smooth functions defined on the surface …

Clustering-based quantisation for PDE-based image compression

L Hoeltgen, P Peter, M Breuß - Signal, Image and Video Processing, 2018 - Springer
Optimal known pixel data for inpainting in compression codecs based on partial differential
equations is real-valued and thereby expensive to store. Thus, quantisation is required for …

Hybrid structural and textural analysis for efficient image compression

B Vidhya, R Vidhyapriya - Wireless Personal Communications, 2021 - Springer
In recent trends, the image compression plays a pivotal part in conveying information
throughout the world. It helps to reduce the redundant data of the image for the purpose of …

Learning energy based inpainting for optical flow

C Vogel, P Knöbelreiter, T Pock - Asian Conference on Computer Vision, 2018 - Springer
Modern optical flow methods are often composed of a cascade of many independent steps
or formulated as a black box neural network that is hard to interpret and analyze. In this work …