نتایج جستجو برای: multimodal registration

تعداد نتایج: 96892  

1998
Christophoros Nikou Fabrice Heitz Jean-Paul Armspach

The registration of multimodal images remains an intricate issue, especially when the multimodal image pair shows non overlapping structures, missing data, noise or outliers. In this paper, we present a deformable model-based technique for the rigid registration of 2 0 and 3D multimodal images. The deformable model embeds a priori knowledge of the spatial correspondence and statistical variabil...

Journal: :SIAM Journal on Scientific Computing 2004

Journal: :IEEE Access 2023

Pedicle screw placement for vertebral fixation is a complicated surgery orthopaedic surgeons. The main challenge to estimate the accurate trajectory’s position minimize post-operative complications related pedicle placement. Different types of 3D 2D registration techniques have been employed avoid misplacement during surgery. However, these cannot be applied directly MR X-ray due differences in...

2009
Emmanuel Piuze

In 1997, Maes et al. [5] was one of the first papers to propose mutual information as a similarity metric for performing multimodal image registration. More than ten years later, mutual information is now found at the core of many state-of-the-art image registration algorithms [2]. The aim of this project is to demonstrate its simplicity, accuracy, and robustness, by implementing the original a...

Journal: :Signal Processing Systems 2009
Alexander Wong Jeff Orchard

Automatic registration of multimodal images has proven to be a difficult task. Most existing techniques have difficulty dealing with situations involving highly non-homogeneous image contrast and a small initial overlapping region between the images. This paper presents a robust multi-resolution method for registering multimodal images using local phase-coherence representations. The proposed m...

2006
Stephen Krotosky Mohan Trivedi

In this paper we introduce and analyze a method for registering multimodal images with occluding objects in the scene. An analysis of multimodal image registration gives insight into the limitations of assumptions made in current approaches and motivates the methodology of the developed algorithm. Using calibrated stereo imagery, we use maximization of mutual information in sliding corresponden...

Journal: :Computer Vision and Image Understanding 2007
Stephen J. Krotosky Mohan M. Trivedi

Research presented in this paper deals with the systematic examination, development, and evaluation of a novel multimodal registration approach that can perform accurately and robustly for relatively close range surveillance applications. An analysis of multimodal image registration gives insight into the limitations of assumptions made in current approaches and motivates the methodology of the...

Journal: :Pattern Recognition 1999
Christophoros Nikou Fabrice Heitz Jean-Paul Armspach

In this paper, we develop data driven registration algorithms, relying on pixel similarity metrics, that enable an accurate (subpixel) rigid registration of dissimilar single or multimodal 2D/3D images. Gross dissimilarities are handled by considering similarity measures related to robust M-estimators. In particular, a novel (robust) similarity metric is proposed for comparing multimodal images...

1998
Christophoros Nikou Fabrice Heitz Jean-Paul Armspach

In this paper, we develop data driven registration algorithms, relying on robust pixel similarity metrics, that enable an accurate (subpixel) rigid registration of dissimilar single and multimodal 2D/3D images. A “soft redescending” estimator is associated to a top down stochatic multigrid relaxation algorithm in order to obtain robust, data driven multimodal image registrations. With the stoch...

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