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A Pyramid Approach to Subpixel Registration Based on Intensity

Publications associées (51)

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Robust watermarking of point-sampled geometry

Mark Pauly

We present a new scheme for digital watermarking of point-sampled geometry based on spectral analysis. By extending existing algorithms designed for polygonal data to unstructured point clouds, our method is particularly suited for scanned models, where th ...

2004

Band Moire images

Roger Hersch, Sylvain Chosson

We propose a new powerful way of synthesizing moire images that enables the creation of dynamically moving messages incorporating text, symbols, and color elements. Moire images appear when superposing a base layer made of replicated base bands and a revea ...

2004

Vehicle for rugged terrain

Roland Siegwart, Michel Lauria

The invention concerns a vehicle whereof the rigid body (1, 2, 4) comprises the front element (20) forming the rear element of a deformable articulated quadrilateral (17, 18, 19, 20). The element (17) is mounted in the extension of the arm (15) linked to t ...

2001

Registration and visualization of transcranial magnetic stimulation on magnetic resonance images

Olivier Cuisenaire, Benoît Macq

We propose a method for the registration of MRI brain images with the physical space. Points on the patients scalp are acquired using a magnetic-field digitizer. The registration transform is the rigid transform that minimizes the mean square distance bet ...

IEEE2001

Automatic Morphometry of Nerve Histological Sections

Olivier Cuisenaire, Benoît Macq

A method for the automatic segmentation, recognition and measurement of neuronal myelinated fibers in nerve histological sections is presented. In this method, the fiber parameters i.e. perimeter, area, position of the fiber and myelin sheath thickness are ...

2000

Kinematic control of the mass properties of redundant articulated bodies

Ronan Boulic

In this paper we show how the mass properties of an articulated body, such as its center of mass and its moments of inertia, may be manipulated like any conventional end effector, with well-known iterative, numerical techniques. Within our interactive simu ...

Institute of Electrical and Electronics Engineers Inc., Piscataway, NJ, USA2000

Distance transformations: fast algorithms and applications to medical image processing

Olivier Cuisenaire

Medical image processing is a demanding domain, both in terms of CPU and memory requirements. The volume of data to be processed is often large (a typical MRI dataset requires 10 MBytes) and many processing tools are only useful to the physician if they ar ...

1999

An Efficient Mutual Information Optimizer for Multiresolution Image Registration

Michaël Unser, Philippe Thévenaz

We propose a new optimizer in the context of multimodal image registration. The optimized criterion is the mutual in formation between the images to align. This criterion requires that their joint histogram be available. For its computation, we introduce d ...

IEEE1998

Geometric Aspects in 3D Biomedical Image Processing

Michaël Unser, Philippe Thévenaz

We present some issues that arise when a geometric transformation is performed on an image or a volume. In particular, we illustrate the well-known problems of blocking, blurring, aliasing and ringing. Although the solution to these problems is trivial in ...

ASMT/SGMT1998

Dressing animated synthetic actors with complex deformable clothes

Daniel Thalmann, Matthias Thalmann

Discusses the use of physics-based models for animating clothes on synthetic actors in motion. In this approach, cloth pieces are first designed with polygonal panels in two dimensions, and are then seamed and attached to the actor's body in three dimensio ...

1992