Browsing Procesamiento de Señales e Imágenes Digitales. by Subject "Algoritmos"
Now showing items 1-5 of 5
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3D updating of solid models based on local geometrical meshes applied to the reconstruction of ancient monumental structures
(Pontificia Universidad Católica del PerúPE, 2014-10-14)We introduce a novel methodology for locally updating an existing 3D solid model of a complex monumental structure with the geometric information provided by a 3D mesh (point cloud) extracted from the digital survey of a ... -
Automatic regularization parameter selection for the total variation mixed noise image restoration framework
(Pontificia Universidad Católica del PerúPE, 2013-03-27)Image restoration consists in recovering a high quality image estimate based only on observations. This is considered an ill-posed inverse problem, which implies non-unique unstable solutions. Regularization methods allow ... -
Multi-scale image inpainting with label selection based on local statistics
(Pontificia Universidad Católica del PerúPE, 2014-09-09)We proposed a novel inpainting method where we use a multi-scale approach to speed up the well-known Markov Random Field (MRF) based inpainting method. MRF based inpainting methods are slow when compared with other ... -
Novel Edge-Preserving Filtering Model Based on the Quadratic Envelope of the l0 Gradient Regularization
(Pontificia Universidad Católica del PerúPE, 2023-01-26)In image processing, the l0 gradient regularization (l0-grad) is an inverse problem which penalizes the l0 norm of the reconstructed image’s gradient. Current state-of-the art algorithms for solving this problem are based ... -
Optimal vicinity 2D median filter for fixed-point or floating-point values
(Pontificia Universidad Católica del PerúPE, 2024-06-19)Los filtros medianos son una técnica digital no lineal normalmente usada para remover ruido blanco, ’sal y pimienta’ de imágenes digitales. Consiste en reemplazar el valor de cada pixel por la mediana de los valores ...