Research Papers




Research Papers

RESEARCH PAPER / International conference on computer vision / Oct 2021 / Computer Vision, Neural network, Machine learning/ Deep learning /Artificial Intelligence
High quality facial attribute editing in videos is a challenging problem as it requires the modifications to be realistic and consistent throughout the video frames. Previous works address the problem with auto-encoder architectures and rely on adversarial training to ensure the attribute editing and the temporal consistency of the results....
RESEARCH PAPER / Future Network Artificial Intelligence and Machine Learning Workshop / Sep 2021 / Wireless communication, 5G
Next generation Terabit per second (Tbps) wireless communication systems aim for sub-THz and THz bands where noise and hardware impairments are known to be dominantly non-linear and lack accurate closed form analytical models. The physical layer (PHY) blocks designed under linearity and Gaussian noise assumptions will fall short of satisfying...
Recently, learning methods have been designed to create Multiplane Images (MPIs) for view synthesis. While MPIs are extremely powerful and facilitate high quality renderings, a great amount of memory is required, making them impractical for many applications. In this paper, we propose a learning method that optimizes the available memory...
Despite many modern applications of Deep Neural Networks (DNNs), the large number of parameters in the hidden layers makes them unattractive for deployment on devices with storage capacity constraints. In this paper we propose a Data-Driven Low-rank (DDLR) method to reduce the number of parameters of pretrained DNNs and expedite...
RESEARCH PAPER / IEEE International Symposium on Networks, Computers and Communications (ISNCC'21) / Sep 2021
In this paper, a novel scheme that utilizes soft decision LLR values of CRC bits to aid BP decoding in polar codes is proposed. We show that the proposed periodic CRC scheduling for the factor graphs of BP decoding, combined with relaxation operations can prevent short cycles and improve FER...
RESEARCH PAPER / SPIE - Optical system Design 2021 / Sep 2021 / Optics, Machine learning/ Deep learning /Artificial Intelligence, Image processing
In recent years, we have seen the development of integrated plenoptic sensors, where multiple pixels are placed under one microlens. It is mainly used by cameras and smartphones to drive the autofocus of the main lens, and it often takes the form of dual-pixels with 2 rectangular sub-pixels. We study...
Deep neural networks (DNNs) have recently achieved great success in many machine learning tasks including computer vision and speech recognition. However, existing DNN models are computationally expensive and memory demanding, hindering their deployment in devices with low memory and computational resources or in applications with strict latency requirements. In addition,...
RESEARCH PAPER / IEEE VTC'21-Fall / Aug 2021 / 5G, Wireless communication, Antennas
Reconfigurable intelligent surfaces (RIS) have the ability to steer the electromagnetic waves to a desired direction. This enables the improvement of the wireless link performance by allowing the illumination of receivers otherwise shadowed by buildings or hills. In this paper, a link level simulations are used to study the performance...
Deep bi-prediction blending. This paper presents a learning-based method to improve bi-prediction in video coding. In conventional video coding solutions, block-based motion compensation blocks from already decoded reference pictures stand out as the main tool used to predict the current frame. Especially, bi-predicted blocks, i.e. blocks that combine two different...
RESEARCH PAPER / SPIE / Applications of Digital Image Processing / Aug 2021 / Video coding
Film grain is often desirable feature in video production. Content creators can use film grain to create a natural appearance and to express their creative-artistic impression. With the expansion of the streaming services, prior to delivery, video typically undergo various pre-processing steps, where the inevitable video compression is presented. Modern...
RESEARCH PAPER / SPIE Optics and Photonics / Aug 2021
RESEARCH PAPER / Metamaterials 2021 / Aug 2021
In this work we propose a new type of metagrating solution based on a combination of two diffraction gratings embedded inside the waveguide. We demonstrate that the proposed design has high intensity across a wide angular range and can be used as single waveguide full color combiner for AR application...
RESEARCH PAPER / SPIE Optics + Photonics 2021 / Aug 2021
In this work we propose a new type of symmetrical surface relief diffractive grating for waveguide-based Augmented Reality (AR) near-eye display system with a wide field of view (FOV). We demonstrate that by using a dual mode symmetrical in-coupling system and pupil angular tiling, we can extend the overall horizontal...
RESEARCH PAPER / IEEE Access / Jul 2021 / Wireless communication, 5G
This article proposes multiple multi-domain solu­tions to deploy private SG networks for vertical industries. Dif­ferent models of deploying SG private networks are presented, covering deployment on local premises as well as their inter­connection with public networks of mobile network operators. Building on a set of industry verticals (comprising Industry 4.0,...
RESEARCH PAPER / Cannes Next 2021 / Jul 2021
Introduction of volumetric video creation and distribution tools, introducing MPEG MIV format, presentation of a creative collaboration with external film production company.
RESEARCH PAPER / IEEE World Haptics Conference / Jul 2021
The development of tactile screens opens new perspectives for co-located image and haptic rendering, leading to the concept of “haptic images”. They emerge from the combination of image data, rendering hardware, and haptic perception. This enables one to perceive haptic feedback while manually exploring an image. This raises nevertheless two...
RESEARCH PAPER / IEEE Communications Magazine / Jul 2021 / 5G, Wireless communication, Machine learning/ Deep learning /Artificial Intelligence
Building upon on a digital transformation, Industry 4.0 (I4.0) aims to build the factories of the future, which feature additional flexibility, increasingly connected infrastructures and automated processes. 5G is playing a paramount role in this transformation, as it can offer high bandwidth, reliable and low latency wireless connectivity to meet...
RESEARCH PAPER / IEEE Access / Jun 2021 / Antennas, Wireless communication, 5G
Intelligent radio surface (IRS) is a programmable structure that can be used to control the propagation of electromagnetic waves by changing the electric and magnetic properties of the surface. By placing these surfaces in an environment, the properties of radio channels can be, at least partially, controlled. This opens new...
RESEARCH PAPER / CLIC 2021 / Jun 2021
This paper presents an end-to-end Artificial Neural Network (ANN)-based compression framework in response to the video compression task of the Challenge for Learned Image Compression (CLIC) at CVPR 2021. In this framework, the video frames are divided into Groups Of Pictures (GOPs) in which each frame can be encoded in...
RESEARCH PAPER / IEEE ICC 2021 / Jun 2021
In cellular systems, IoT devices usually encounter a compromise between device’s reachability and its battery life; reducing the communication latency entails a reduced IoT device’s battery life. To mitigate this compromise, the lifetime of a battery powered wireless device can be significantly extended by deploying ultra-low power (ULP) receivers with...