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This is a set of segmented trachea datasets suitable for centerline analysis and virtual bronchoscopy prototype software. The anisotropy of these datasets is different than the original; i.e., datasets are sub-sampled for better desktop computer performance. No, i do not have the original datasets. ...
M. Sabry Hassouna
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This is a set of segmented colon datasets suitable for centerline analysis and virtual colonoscopy prototype software. The anisotropy of these datasets is different than the original; i.e., datasets are sub-sampled for better desktop computer performance. No, i do not have the original datasets....
M. Sabry Hassouna
 Zhenhui Dai

Student, Msc
Research Interests
centerline extraction | computer vision | OpenGL | virtual endoscopy | Virtual Reality | visualization | VTK

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mecca.louisville.edu
A set of silhouette images that can be used during testing a new centerline extraction technique. Some of the images are drawn by hand, while others are collected from several classic papers....
M. Sabry Hassouna
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mecca.louisville.edu
In this paper, we present a novel framework for computing centerlines for both 2D and 3D shape analysis. The framework works as follows: an object centerline point is selected automatically as the point of global maximum Euclidean distance from the boundary, and is considered a point source (PS) that transmits a wave front that evolves over time and traverses the object domain....
M. Sabry Hassouna
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mecca.louisville.edu
In this paper, we present a novel framework for computing centerlines for both 2D and 3D shape analysis. The framework works as follows: an object centerline point is selected automatically as the point of global maximum Euclidean distance from the boundary, and is considered a point source (PS) that transmits a wave front that evolves over time and traverses the object domain....
M. Sabry Hassouna, Aly A. Farag
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mecca.louisville.edu
In this paper, we propose a new variational framework for computing continuous curve skeletons from discrete objects that are suitable for structural shape representation. We have derived a new energy function, which is proportional to some medialness function, such that the minimum cost path between any two medial voxels in the shape is a curve skeleton....
M. Sabry Hassouna, Aly A. Farag
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mecca.louisville.edu
Representing a 3D shape by a set of one-dimensional curves that are locally symmetric with respect to its boundary (i.e., curve skeletons) is of importance in several machine intelligence tasks. This paper presents a fast, automatic, and robust variational framework for computing continuous, sub-voxel accurate curve skeletons from volumetric objects....
M. Sabry Hassouna, Aly A. Farag
M. Sabry Hassouna

Research Scientist, PhD
Vital Images, Inc.
Research Interests
blood vessel segmentation | centerline extraction | computer vision | curve skeletons | fast marching methods | level set methods | pattern recognition | PDE | shape analysis | shape representation | virtual colonoscopy