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This paper proposes new adaptive structuring elements in the framework of mathematical morphology. These structuring elements (SEs) have a fixed size but they adapt their shape to the image content by choosing, recursively, similar pixels in gray-scale, with regard to the seed pixel. These new SEs are called region growing structuring elements (REGSEs).… (More)

- Vincent Morard, Petr Dokládal, Etienne Decencière
- J. Sel. Topics Signal Processing
- 2012

- Vincent Morard, Petr Dokládal, Etienne Decencière
- IEEE Transactions on Image Processing
- 2014

Path openings and closings are morphological tools used to preserve long, thin, and tortuous structures in gray level images. They explore all paths from a defined class, and filter them with a length criterion. However, most paths are redundant, making the process generally slow. Parsimonious path openings and closings are introduced in this paper to solve… (More)

- Vincent Morard, Etienne Decencière, Petr Dokládal
- Journal of Mathematical Imaging and Vision
- 2012

An attribute opening is an idempotent, anti-extensive and increasing operator, which removes from an image connected components which do not fulfil a given criterion. When the increasingness property is dropped, we obtain a—more general—attribute thinning. In this paper, we propose efficient grey scale thinnings based on geodesic attributes. Given that the… (More)

- Vincent Morard, Etienne Decencière, Petr Dokládal
- ISMM
- 2011

An attribute opening is an idempotent, anti-extensive and increasing operator that removes, in the case of binary images, all the connected components (CC) which do not fulfil a given criterion. When the increasingness property is dropped, we obtain more general algebraic thinnings. We propose in this paper, to use criteria based on the geodesic diameter to… (More)

Transition aluminas, and especially the gamma type, are largely used as catalyst supports in refining and petrochemicals. Most studies focus on properties resulting from material texture and casting (specific surface, porous volume, pore shape and diameter). However, surface properties of alumina should be considered as well, as the catalytic activity is… (More)

- Vincent Morard, Petr Dokládal, Etienne Decencière
- 2011 IEEE International Conference on Acoustics…
- 2011

Openings constitute one of the fundamental operators in mathematical morphology. They can be applied to a wide range of applications, including noise reduction and feature extraction and enhancement. In this paper, we introduce a new, efficient and adaptable algorithm to compute one dimensional openings along discrete lines, in arbitrary orientation. The… (More)

- Maxime Moreaud, Dominique Jeulin, Vincent Morard, Renaud Revel
- Journal of microscopy
- 2012

Boehmite occurs in the form of nanoparticles. Upon drying, it can form the alumina that is common in catalyst support used in refining and petrochemicals. The topotactic transformation of boehmite alumina led to an interest in the precise shape and size of these nanoparticles which is highly linked to the catalyst activity. Boehmite nanoparticles can be… (More)

- Pavel Karas, Vincent Morard, +4 authors Petr Dokládal
- Journal of Real-Time Image Processing
- 2012

Linear morphological openings and closings are important non-linear operators from mathematical morphology. In practical applications, many different orientations of digital line segments must typically be considered. In this paper, we (1) review efficient sequential as well as parallel algorithms for the computation of linear openings and closings; (2)… (More)

- Vincent Morard, Petra Dokladal, Etienne Decencière
- IEEE Journal of Selected Topics in Signal…
- 2012

We introduce a new, efficient and adaptable algorithm to compute openings, granulometries and the component tree for one-dimensional (1-D) signals. The algorithm requires only one scan of the signal, runs in place in <i>O</i>(1) per pixel, and supports any scalar data precision (integer or floating-point data). The algorithm is applied to two-dimensional… (More)

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