Publications
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Thiol-gelatin-norbornene bioink for laser‐based high‐definition bioprinting Ghent University Vrije Universiteit Brussel
Two-photon polymerization (2PP) is a lithography-based 3D printing method allowing the fabrication of 3D structures with sub-micrometer resolution. This work focuses on the characterization of gelatin-norbornene (Gel-NB) bioinks which enables the embedding of cells via 2PP. The high reactivity of the thiol-ene system allows 2PP processing of cell-containing materials at remarkably high scanning speeds (1000 mm s(-1)) placing this technology in ...
High-throughput fabrication of vascularized adipose microtissues for 3D bioprinting Ghent University KU Leuven Vrije Universiteit Brussel
For patients with soft tissue defects, repair with autologous in vitro engineered adipose tissue could be a promising alternative to current surgical therapies. A volume-persistent engineered adipose tissue construct under in vivo conditions can only be achieved by early vascularization after transplantation. The combination of 3D bioprinting technology with self-assembling microvascularized units as building blocks can potentially answer the ...
Autoencoder-learned local image descriptor for image inpainting Ghent University
In this paper, we propose an efficient method for learning local image descriptors suitable for the use in image inpainting algorithms. We learn the descriptors using a convolutional autoencoder network that we design such that the network produces a computationally efficient extraction of patch descriptors through an intermediate image representation. This approach saves computational memory and time in comparison to existing methods when used ...
Image Inpainting and demosaicing via total variation and Markov random field-based modeling Ghent University
The problem of image reconstruction from incomplete data can be formulated as a linear inverse problem and is usually approached using optimization theory tools. Total variation (TV) regularization has been widely applied in this framework, due to its effectiveness in capturing spatial information and availability of elegant, fast algorithms. In this paper we show that significant improvements can be gained by extending this approach with a ...
High-throughput fabrication of vascularized spheroids for bioprinting Ghent University University of Antwerp
Overcoming the problem of vascularization remains the main challenge in the field of tissue engineering. As three-dimensional (3D) bioprinting is the rising technique for the fabrication of large tissue constructs, small prevascularized building blocks were generated that can be incorporated throughout a printed construct, answering the need for a microvasculature within the small micron range (<10 mu m). Uniform spheroids with an ideal ...
A two stage patch-based Markov Random Field approach to structure-aware image inpainting Ghent University
Depth-Based View Synthesis Using Pixel-level Image Inpainting Vrije Universiteit Brussel
Depth-based view synthesis can produce novel realistic images of a scene by view warping and image inpainting. This paper presents a depth-based view synthesis approach performing pixel-level image inpainting. The proposed approach provides great flexibility in pixel manipulation and prevents random effects in texture propagation. By analyzing the process generating image holes in view warping, we firstly classify such areas into simple holes ...
Markov random field based image inpainting with context-aware label selection Ghent University
In this paper, we propose a novel global Markov Random Field based image inpainting method with context-aware label selection. Context is determined based on the texture and color features in fixed image regions and is used to distinguish areas of similar content to which the search for candidate patches is limited. Furthermore, we introduce a novel optimization approach, as an alternative to priority belief propagation framework, which further ...