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Andrei I. Purica

5 accepted papers

2019

Enhancing HEVC Spatial Prediction by Context-based Learning

ICASSP 2019accepted

Deep generative models have been recently employed to compress images, image residuals or to predict image regions. Based on the observation that state-of-the-art spatial prediction is highly optimized from a rate-distortion point of view, in this work we study how learning-based approaches might be…

Cited by 7SourceScholar
2018

Video enhancement with convex optimization methods

ICASSP 2018accepted

Video enhancement methods enable to optimize the viewing of video content at the end-user side. Most approaches do not consider the compressed nature of the available content. In the present work, we build upon a recently proposed video enhancement approach that explicitly models a compression stage…

Cited by 0SourceScholar
2017

A railroad detection algorithm for infrastructure surveillance using enduring airborne systems

ICASSP 2017accepted

Infrastructure surveillance is an important requirement for many companies. With the advancement of technology, drones can now provide an efficient tool for such applications. A possible future scenario is the automated surveillance of railroads. Whereas numerous algorithms that provide railroad det…

Cited by 0SourceScholar
2016

View synthesis based on temporal prediction via warped motion vector fields

ICASSP 2016accepted

The demand for 3D content has increased over the last years as 3D displays are now widespread. View synthesis methods, such as depth-image-based-rendering, provide an efficient tool in 3D content creation or transmission, and are integrated in coding solutions for multiview video content such as 3D-…

Cited by 0SourceScholar
2015

Improved view synthesis by motion warping and temporal hole filling

ICASSP 2015accepted

View synthesis received increasing attention over the last years, as it offers a wide range of practical applications like Free Viewpoint Television, 3D video, video gaming, etc. The main issues in view synthesis are the filling of disoccluded areas and the warping of real views. In this paper we pr…

Cited by 0SourceScholar