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Chapter
Integrating X-ray CT Data into Models
X-ray Computed Tomography (X-ray CT) offers important 4-D (i.e., 3-D scanning over time) structural information of the soil architecture. This imaging tool provides access to the 3-D morphological properties o...
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Article
Real-time image processing systems using fuzzy and rough sets techniques
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Article
Quaternion-Based Texture Analysis of Multiband Satellite Images: Application to the Estimation of Aboveground Biomass in the East Region of Cameroon
Within the last decade, several approaches using quaternion numbers to handle and model multiband images in a holistic manner were introduced. The quaternion Fourier transform can be efficiently used to model ...
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Chapter and Conference Paper
From Voxels to Ellipsoids: Application to Pore Space Geometrical Modelling
This paper deals with the representation of complex volume shapes using a piece wise approximation by ellipsoids. The principle consists in optimizing a functional including an error term and a scale term. The...
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Article
Simulating Biological Dynamics Using Partial Differential Equations: Application to Decomposition of Organic Matter in 3D Soil Structure
The majority of carbon on earth is in the form of soil organic matter. And its degradation by microorganisms leads to the remineralization of carbon as carbon dioxide. The microbial activity causes a reduction...
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Chapter
Using Differential Constraints to Generate a 3D Face Model from Stereo
We propose a way to incorporate a priori information in a 3D stereo reconstruction process from a pair of calibrated face images. A 3D mesh modeling the surface is iteratively deformed in order to minimize an ...
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Chapter and Conference Paper
Crestlines contribution to the automatic building extraction
A key issue for Geographical Information Systems users is the automatic acquisition of data such as 3D models of man made structures. In the specific context of Mobile Communication Network Planning, our inter...
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Chapter and Conference Paper
Modeling 3D Objects with Quadratic Surface Patches: Application to the Recognition and Locating of Anatomic Structures
In this paper, we show how to extract reliable informations about the shape of 3D objects, obtained from volume medical images. We present an optimal region-growing strategy, that makes use of the differential...
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Chapter and Conference Paper
Two methods for a reliable corner detection in 2D images
In this paper, we apply successively two methods for corner detection in two-dimensional images, i.e. a differential geometrybased approach relying on multi-scale curvature computation and curvature extrema ex...
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Chapter
From Voxels to Curvature Features
Modern medical imaging techniques, such as Magnetic Resonance Imaging (MRI) or X-ray computed tomography provide three dimensional images of internal structures of the body, usually by means of a stack of tomo...
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Chapter and Conference Paper
Recursive filtering and edge closing: Two primary tools for 3D edge detection
This paper deals with edge detection in 3D images such as scanner, magnetic resonance (NMR), or spatio-temporal data. We propose an unified formalism for 3D edge detection using optimal, recursive and separabl...
