Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Pedro Garcia Freitas"'
Autor:
Gustavo De Oliveira Alves, Murilo Bresciani De Carvalho, Carla L. Pagliari, Pedro Garcia Freitas, Ismael Seidel, Marcio Pinto Pereira, Carla Florentino Schueler Vieira, Vanessa Testoni, Fernando Pereira, Eduardo A. B. Da Silva
Publikováno v:
IEEE Access, Vol 8, Pp 170807-170829 (2020)
The increasing demand for highly realistic and immersive visual experiences has led to the emergence of richer 3D visual representation models such as light fields, point clouds and meshes. Light fields may be modelled as a 2D array of 2D views, corr
Externí odkaz:
https://doaj.org/article/88db691b5aa947c1bf76c8cc481eff46
Publikováno v:
Journal of the Brazilian Computer Society, Vol 24, Iss 1, Pp 1-16 (2018)
Abstract In most practical multimedia applications, processes are used to manipulate the image content. These processes include compression, transmission, or restoration techniques, which often create distortions that may be visible to human subjects
Externí odkaz:
https://doaj.org/article/5cc64bafb4b6413a88ef6a826d93e295
Autor:
Pedro Garcia Freitas, Luísa Peixoto da Eira, Samuel Soares Santos, Mylene Christine Queiroz de Farias
Publikováno v:
Journal of Imaging, Vol 4, Iss 10, p 114 (2018)
Automatic assessing the quality of an image is a critical problem for a wide range of applications in the fields of computer vision and image processing. For example, many computer vision applications, such as biometric identification, content retrie
Externí odkaz:
https://doaj.org/article/22852c51133b4daa8aefd72d9106b11b
Publikováno v:
ELCVIA Electronic Letters on Computer Vision and Image Analysis, Vol 13, Iss 2 (2014)
In this work we propose a framework for increasing the processing efficiency of super-resolution algorithms. The framework is targeted at super-resolution video processing algorithms, that require a large amount of data processing. We propose a set o
Externí odkaz:
https://doaj.org/article/eaabf9497493466facfb1debdebcfe9d
Publikováno v:
Computers & Graphics. 103:31-44
Publikováno v:
Anais Estendidos do XXXV Conference on Graphics, Patterns and Images (SIBGRAPI Estendido 2022).
Since the mid-20th century, the use of digital formats for visual content allowed a great evolution in how society communicates. The Internet and digital broadcast systems introduced in the decade 90 to the wider public allowed an incredible expansio
Publikováno v:
IEEE Signal Processing Letters. 28:1150-1154
Point Clouds (PCs) have recently been adopted as the preferred data structure for representing 3D visual contents. Examples of Point Cloud (PC) applications range from 3D representations of small objects up to large scenes, both still or dynamic in t
Publikováno v:
Theoretical Computer Science. 805:37-61
The pervasiveness of digital devices like mobile phones, tablets, and personal computers established the presence of image contents as an essential media in several communication applications. In this scenario, the quality of the displayed images is
Autor:
Matheus C. de Oliveira, Luiz G. R. Martins, Henrique Costa Jung, Nilson Donizete Guerin, Renam Castro da Silva, Eduardo Peixoto, Bruno Macchiavello, Edson M. Hung, Vanessa Testoni, Pedro Garcia Freitas
Publikováno v:
2021 34th SIBGRAPI Conference on Graphics, Patterns and Images (SIBGRAPI).
Publikováno v:
Signal Processing: Image Communication. 70:57-67
Objective video quality assessment (VQA) methods are essentially algorithms that estimate video quality. Recent quality assessment methods aim to provide quality predictions that are well correlated with subjective quality scores. However, most of th