Search Results for author: Alexandros Doumanoglou

Found 8 papers, 3 papers with code

Unsupervised Interpretable Basis Extraction for Concept-Based Visual Explanations

no code implementations19 Mar 2023 Alexandros Doumanoglou, Stylianos Asteriadis, Dimitrios Zarpalas

An important line of research attempts to explain CNN image classifier predictions and intermediate layer representations in terms of human understandable concepts.

Cross-Stitched Multi-task Dual Recursive Networks for Unified Single Image Deraining and Desnowing

no code implementations15 Nov 2022 Sotiris Karavarsamis, Alexandros Doumanoglou, Konstantinos Konstantoudakis, Dimitrios Zarpalas

The proposed model makes use of cross-stitch units that enable multi-task learning across two separate DRN models, each tasked for single image deraining and desnowing, respectively.

Image Restoration Multi-Task Learning +1

Towards Full-to-Empty Room Generation with Structure-Aware Feature Encoding and Soft Semantic Region-Adaptive Normalization

no code implementations10 Dec 2021 Vasileios Gkitsas, Nikolaos Zioulis, Vladimiros Sterzentsenko, Alexandros Doumanoglou, Dimitrios Zarpalas

In order to acquire photo-realistic and structural consistent background, existing deep learning methods either employ image inpainting approaches or incorporate the learning of the scene layout as an individual task and leverage it later in a not fully differentiable semantic region-adaptive normalization module.

Depth Estimation Image Inpainting

Serverless Streaming for Emerging Media: Towards 5G Network-Driven Cost Optimization

no code implementations9 Feb 2021 Konstantinos Konstantoudakis, David Breitgand, Alexandros Doumanoglou, Nikolaos Zioulis, Avi Weit, Kyriaki Christaki, Petros Drakoulis, Emmanouil Christakis, Dimitrios Zarpalas, Petros Daras

Immersive 3D media is an emerging type of media that captures, encodes and reconstructs the 3D appearance of people and objects, with applications in tele-presence, teleconference, entertainment, gaming and other fields.

Networking and Internet Architecture Multimedia

Deep Soft Procrustes for Markerless Volumetric Sensor Alignment

2 code implementations23 Mar 2020 Vladimiros Sterzentsenko, Alexandros Doumanoglou, Spyridon Thermos, Nikolaos Zioulis, Dimitrios Zarpalas, Petros Daras

This is accomplished by a soft, differentiable procrustes analysis that regularizes the segmentation and achieves higher extrinsic calibration performance in expanded sensor placement configurations, while being unrestricted by the number of sensors of the volumetric capture system.

Pose Estimation

Self-Supervised Deep Depth Denoising

1 code implementation ICCV 2019 Vladimiros Sterzentsenko, Leonidas Saroglou, Anargyros Chatzitofis, Spyridon Thermos, Nikolaos Zioulis, Alexandros Doumanoglou, Dimitrios Zarpalas, Petros Daras

Specifically, the proposed autoencoder exploits multiple views of the same scene from different points of view in order to learn to suppress noise in a self-supervised end-to-end manner using depth and color information during training, yet only depth during inference.

3D Reconstruction Denoising

Non-linear Convolution Filters for CNN-based Learning

no code implementations ICCV 2017 Georgios Zoumpourlis, Alexandros Doumanoglou, Nicholas Vretos, Petros Daras

However, while recent research results of neuroscience prove the existence of non-linear operations in the response of complex visual cells, little effort has been devoted to extend the convolution technique to non-linear forms.

Image Classification

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