Random Phase Textures: Theory and Synthesis (2009)
Galerne, Bruno, Gousseau, Yann, Morel, Jean-Michel
This paper explores the mathematical and algorithmic properties of two sample-based micro-texture models: random phase noise (RPN) and asymptotic discrete spot noise (ADSN). These models permit to...
Random Phase Textures: Theory and Synthesis (2009)
Galerne, Bruno, Gousseau, Yann, Morel, Jean-Michel
This paper explores the mathematical and algorithmic properties of two sample-based micro-texture models: random phase noise (RPN) and asymptotic discrete spot noise (ADSN). These models permit to...
L'Anàlisi local i no local d'imatges i algunes aplicacions (2008)
Antoni Buades, Bartomeu Coll Vicens, Jean-Michel Morel
La major part dels mètodes de filtratge o restauració d'imatges es basen en la propietat de fer mitjanes dels valors del color. Un dels més coneguts és l'anomenat filtre d'entorn o bé...
c ○ 2000 Kluwer Academic Publishers. Manufactured in The Netherlands. Meaningful Alignments (2008)
Agnès Desolneux, Lionel Moisan, Jean-michel Morel
Abstract. We propose a method for detecting geometric structures in an image, without any a priori information. Roughly speaking, we say that an observed geometric event is “meaningful ” if the...
Antoni Buades, Bartomeu Coll, Jean-michel Morel
enhancement by non-local reverse heat equation
Vicent Caselles Simon, Luigi Ambrosio, Simon Masnou, Jean-michel Morel
This paper contains a systematic analysis of a natural measure theoretic notion of connectedness for sets of finite perimeter in IR N , introduced by H. Federer in the more general framework of the...
Agnes Desolneux, Sayd Ladjap, Lionel Moisan, Jean-michel Morel
We address the problem of computing a local orientation map in a digital image. We show that standard image grey level quantization causes a strong bias in the repartition of orientations, hindering...
Shape Preserving Local Histogram Modification (2007)
Associate Member, Jose-luis Lisani, Jean-michel Morel, Guillermo Sapiro
Abstract — A novel approach for shape preserving contrast enhancement is presented in this paper. Contrast enhancement is achieved by means of a local histogram equalization algorithm which...
An Axiomatic Approach to Image Interpolation (2007)
Associate Member, Jean-michel Morel, Catalina Sbert
Abstract—We discuss possible algorithms for interpolating data given in a set of curves and/or points in the plane. We propose a set of basic assumptions to be satisfied by the interpolation...
Scale Space or topographic map? (2007)
Bartomeu Coll, Jean-michel Morel
In this paper, we explain why Scale Space theories do not incorporate obvious restrictions imposed by the physics of image generation #20#. The heat equation #linear scale space # is not contrast...
Meaningful Alignments Agn`es Desolneux (2007)
Lionel Moisan, Jean-michel Morel
We propose a method for detecting geometric structures in an image, without any a priori information. Roughly speaking, we say that an observed geometric event is "meaningful " if...
Meaningful Alignments Agnes Desolneux (2007)
Lionel Moisan, Jean-michel Morel
We propose a method for detecting geometric structures in an image, without any a priori information. Roughly speaking, we say that an observed geometric event is \meaningful " if the...
Luis Alvarez, Yann Gousseau, Jean-michel Morel
This paper introduces a new method for analyzing scaling phenomena in natural images, and draws some consequences as to whether natural images belong to the space of functions with bounded variation....
The regularity of optimal irrigation patterns (2007)
Morel, Jean-Michel, Santambrogio, Filippo
A branched structure is observable in draining and irrigation systems, in electric power supply systems and in natural objects like the blood vessels, the river basins or the trees. Recent approaches...
The regularity of optimal irrigation patterns (2007)
Morel, Jean-Michel, Santambrogio, Filippo
A branched structure is observable in draining and irrigation systems, in electric power supply systems and in natural objects like the blood vessels, the river basins or the trees. Recent approaches...
Antoni Buades, Bartomeu Coll, Jean-michel Morel, Catalina Sbert
Demosaicing is the process by which from a single CCD sensor measuring only one color component per pixel, red, green or blue, one can infer a fully color information at each pixel. This inference...
Agnès Desolneux, Lionel Moisan, Jean-michel Morel
Angeles. It is also being taught by Andrès Almansa at the Facultad de Ingeneria, Montevideo. This text will be of interest to several kinds of audiences. Our teaching experience proves that...
Comparison of distances between measures (2006)
The problem of optimal transportation between a set of sources and a set of wells has become recently the object of new mathematical models generalizing the Monge-Kantorovich problem. These models...
Agnès Desolneux, Lionel Moisan, Jean-michel Morel
Angeles. It is also being taught by Andrès Almansa at the Facultad de Ingeneria, Montevideo. This text will be of interest to several kinds of audiences. Our teaching experience proves that...
Comparison of distances between measures (2006)
The problem of optimal transportation between a set of sources and a set of wells has become recently the object of new mathematical models generalizing the Monge-Kantorovich problem. These models...
A Theory of Shape Identification (2005)
Musé, Pablo, Sur, Frédéric, Cao, Frédéric, Lisani, Jose Luis, Morel, Jean-Michel
What are shapes? Although shape recognition has long been one of the most important topics in computer vision, it is still hard to answer this question in a few words. In this book, shapes are...
A Theory of Shape Identification (2005)
Musé, Pablo, Sur, Frédéric, Cao, Frédéric, Lisani, Jose Luis, Morel, Jean-Michel
What are shapes? Although shape recognition has long been one of the most important topics in computer vision, it is still hard to answer this question in a few words. In this book, shapes are...
Accurate estimates of false alarm number in shape recognition (2004)
Musé, Pablo, Sur, Frédéric, Cao, Frédéric, Gousseau, Yann, Morel, Jean-Michel
There are many shape recognition algorithms. Their Achilles heel usually is the control of the number of false positive, or false alarms. A match between two shapes and ' being proposed with a...
Accurate estimates of false alarm number in shape recognition (2004)
Musé, Pablo, Sur, Frédéric, Cao, Frédéric, Gousseau, Yann, Morel, Jean-Michel
There are many shape recognition algorithms. Their Achilles heel usually is the control of the number of false positive, or false alarms. A match between two shapes F and F' being proposed with a...
Accurate estimates of false alarm number in shape recognition (2004)
Musé, Pablo, Sur, Frédéric, Cao, Frédéric, Gousseau, Yann, Morel, Jean-Michel
There are many shape recognition algorithms. Their Achilles heel usually is the control of the number of false positive, or false alarms. A match between two shapes F and F' being proposed with a...
Morel: Gestalt Theory and Computer Vision (2004)
Lionel Moisan, Jean-michel Morel
61 av. du president Wilson,
Accurate estimates of false alarm number in shape recognition (2004)
Pablo Musé, Frédéric Sur, Frédéric Cao, Yann Gousseau, Jean-Michel Morel
Accurate Estimates Of False Alarm Number In Shape Recognition (2004)
Frdric Sur, Frdric Cao, Jean-michel Morel, Pablo Muse, Pablo Mus, Yann Gousseau, ...
There are many shape recognition algorithms. Their Achilles heel usually is the control of the number of false positive, or false alarms. A match between two shapes F and F being proposed with a...
Maximal meaningful events and applications to image analysis (2003)
Desolneux, Agnès, Moisan, Lionel, Morel, Jean-Michel
We discuss the mathematical properties of a recently introduced method for computing geometric structures in a digital image without any a priori information. This method is based on a basic...
Variational Snake Theory (2002)
Agnes Desolneux, Variational Snake Theory, Lionel Moisan, Jean-michel Morel
In this chapter, we review briey the theory of edge detection and its non local version, the \snake", or \active contour" theory. The snakes are curves minimizing locally a contrast and...
Computational Gestalts and Perception Thresholds (2002)
Agnès Desolneux, Lionel Moisan, Jean-michel Morel
In 1923, Max Wertheimer proposed a research programme and method in visual perception.
Automatic image analysis : a challenge for Computer Vision (2001)
DESOLNEUX, Agnès, MOISAN, Lionel, MOREL, Jean-Michel
- Nous exposons une méthode récente pour trouver des structures géométriques arbitraires dans une image, sans information ou modèle a priori. Par un principe de la perception dû à Helmholtz,...
Edge detection by Helmholtz principle (2001)
Lionel Moisan, Jean-michel Morel
We apply to edge detection a recently introduced method for computing geometric structures in a digital image, without any a priori information. According to a basic principle of perception due to...
Edge detection by Helmholtz principle (2001)
Lionel Moisan, Jean-michel Morel
We apply to edge detection a recently introduced method for computing geometric structures in a digital image, without any a priori information. According to a basic principle of perception due to...
Image Analysis and P.D.E.s (2001)
Frederic Guichard, Jean-michel Morel, Jean-michel Morel
It is well known that a conveniently rescaled iterated convolution of a linear positive kernel converges to a gaussian. As a consequence, all iterative linear smoothing methods of a signal or an...
Maximal meaningful events and applications to image analysis (2000)
Lionel Moisan, Jean-michel Morel
61 avenue du pr'esident Wilson,
Geometry and Color in Natural Images (2000)
Vicent Caselles, Bartomeu Coll, Jean-michel Morel
Most image analysis algorithms are defined for the grey level channel, particularly when geometric information is looked for in the digital image. We propose an experimental procedure in order to...
Topographic maps and local contrast changes in natural images (1999)
Vicent Caselles, Jean-michel Morel
Abstract. We call “natural ” image any photograph of an outdoor or indoor scene taken by a standard camera. We discuss the physical generation process of natural images as a combination of...
Shape preserving local histogram modification (1999)
Jose-luis Lisani, Jean-michel Morel, Guillermo Sapiro Z
A novel approach for shape preserving contrast enhancement is presented in this paper. Contrast enhancement is achieved by means of a local histogram equalization algorithm which preserves the...
CVGMT Preprint Server - http://cvgmt.sns.it/papers/ambcasmas99/ (1999)
Connected Components Of, Luigi Ambrosio, Simon Masnou, Jean-michel Morel
This paper contains a systematic analysis of a natural measure theoretic notion of connectedness for sets of finite perimeter in IR N , introduced by H. Federer in the more general framework of the...
Connected Components of Sets of Finite Perimeter and Applications to Image Processing (1999)
Luigi Ambrosio Vicent, Luigi Ambrosio, Simon Masnou, Jean-michel Morel
This paper contains a systematic analysis of a natural measure theoretic notion of connectedness for sets of finite perimeter in IR N , introduced by H. Federer in the more general framework of the...
Connected Components of Sets of Finite Perimeter and Applications to Image Processing (1999)
Luigi Ambrosio, Vicent Caselles, Simon Masnou, Jean-michel Morel
This paper contains a systematic analysis of a natural measure theoretic notion of connectedness for sets of finite perimeter in IR N , introduced by H. Federer in the more general framework of the...
An Axiomatic Approach to Image Interpolation (1999)
Vicent Caselles, Jean-michel Morel, Catalina Sbert
We discuss possible algorithms for interpolating data given in a set of curves and/or points in the plane. We propose a set of basic assumptions to be satisfied by the interpolation algorithms which...
Vicent Caselles, Bartomeu Coll, Jean-michel Morel
We call "natural" image any photograph of an outdoor or indoor scene taken by a standard camera. We discuss the physical generation process of natural images as a combination of occlusions,...
Connected Components of Sets of Finite Perimeter and Applications to Image Processing (1999)
Cvgmt Preprint Server, Cvgmt Preprint Server, Luigi Ambrosio \lambda, Simon Masnou, Jean-michel Morel
Caselles, Vicent, Morel, Jean-Michel, Sapiro, Guillermo, Tannenbaum, Allen R.
©1998 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale...
Image Restoration Involving Connectedness (1998)
Simon Masnou, Jean-michel Morel
Two local adaptative nonlinear filters for image denoising are described and compared to other methods. The first one is a median filter computed over a connected neighborhood that fits the local...
Vicent Caselles, Simon Masnou, Jean-michel Morel, Catalina Sbert
We discuss possible algorithms for interpolating data given in a set of curves and/or points in the plane. We propose a set of basic assumptions to be satisfied by the interpolation algorithms which...
Level Lines Based Disocclusion (1998)
Object recognition, robotic vision, occluding noise removal or photograph design require the ability to perform disocclusion. We call disocclusion the recovery of hidden parts of objects in a digital...
Vicent Caselles, Bartomeu Coll, Jean-michel Morel
We call "natural" image any photograph of an outdoor or indoor scene taken by a standard camera. We discuss the physical generation process of natural images as a combination of occlusions,...
Restauration d'images et filtres de Yaroslavsky (1997)
MASNOU, Simon, MOREL, Jean-Michel
Nous étudions deux opérateurs de filtrage local adaptatif. Ils sont tous deux basés sur l'utilisation de la connexité comme seule contrainte spatiale et mettent en oeuvre une contrainte de...
Shape Preserving Local Histogram Modification (1997)
Vicent Caselles, Jose-luis Lisani, Jean-michel Morel, Guillermo Sapiro
A novel approach for shape preserving contrast enhancement is presented in this paper. Contrast enhancement is achieved by means of a local histogram equalization algorithm which preserves the...
Bartomeu Coll, Jean-michel Morel
We discuss the physical generation process of images as a combination of occlusions, transparencies and contrast changes. This description ts to the phenomenological description of Gaetano Kanizsa,...
Contrast Invariant Image Intersection
Coloma Ballester, Eliane Cubero-castan, Manuel González, Jean-michel Morel
Given two images of the same scene taken at different times or with different cameras, we propose an "image intersection" method. Contrast invariant image intersection permits to generate a...