Get Bioinspired Applications in Artificial and Natural PDF

By Jose Mira, José M. Ferrández, Jose-Ramon Alvarez Sanchez, Felix Paz, Javier Toledo

ISBN-10: 3642022669

ISBN-13: 9783642022661

Mira J., Ferrandez J.M., Jose-Ramon Alvarez Sanchez, de Paz F.l., Toledo F.J. (eds.) Bioinspired purposes in man made and average Computation (Springer, 2009)(ISBN 3642022669)(O)(550s)

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Additional resources for Bioinspired Applications in Artificial and Natural Computation (Springer, 2009)(ISBN 3642022669)(O)(550s)

Sample text

In addition of the fuzziness of the contours of the two bones, the external contour of the leg introduces a contrast in the background gray level that the algorithms must overcome. Due to this, the greedy approach cannot achieve a good segmentation (Figure 6(c)) meanwhile the hybrid algorithm overcomes the external contour and the image noise to provide a correct division of the subnets (Figure 6(d)). Note that the bigger bone requires the link cutting procedure to segment the hole of its internal part.

2 Polar Coordinate System Images obtained by FBP of the data provided by CT scans often show some degree of symmetry since they are derived from the scattering values of the X-ray beam rotating around the object. Therefore, it is intuitive to define any point in terms of angles and distance, which implies the use of trigonometric formulae in rectangular coordinate system. Easier expressions are possible in polar coordinate system. The polar coordinate system defines each point by its radial and angular coordinates denoting the distance from the pole, the origin of symmetry, and the angle determined with the polar axis.

2 Discrimination between People and Vehicles In order to be able to contrast results, a new thermal video was used containing both vehicles and pedestrians. 5–13 μm. Figure 6 shows one image from this thermal video. Nine frames are chosen from the video and obstructions of the objects under test are not presented. Results obtained are shown in figure 7. It can be seen that the curves remain constant for both descriptors. The intensity of the vehicle is higher than the one of the person (figure7a).

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Bioinspired Applications in Artificial and Natural Computation (Springer, 2009)(ISBN 3642022669)(O)(550s) by Jose Mira, José M. Ferrández, Jose-Ramon Alvarez Sanchez, Felix Paz, Javier Toledo


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