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Article

98 Citations

13,957 Views

22 Pages

Comparative Analysis of Clustering-Based Approaches for 3-D Single Tree Detection Using Airborne Fullwave Lidar Data

Sandeep Gupta,
Holger Weinacker and
Barbara Koch

Remote Sens.2010, 2(4), 968-989;https://doi.org/10.3390/rs2040968

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1 April 2010

In the past, many algorithms have been applied for three-dimensional (3-D) single tree extraction using Airborne Laser Scanner (ALS) data. Clustering based algorithms are widely used in different applications but rarely being they used in the field o...

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Article

1 Citations

1,646 Views

13 Pages

New Test to Detect Clustered Graphical Passwords in Passpoints Based on the Perimeter of the Convex Hull

Joaquín Alberto Herrera-Macías,
Lisset Suárez-Plasencia,
Carlos Miguel Legón-Pérez,
Guillermo Sosa-Gómez and
Omar Rojas

Information2024, 15(8), 447;https://doi.org/10.3390/info15080447

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30 July 2024

This research paper presents a new test based on a novel approach for identifying clustered graphical passwords within the Passpoints scenario. Clustered graphical passwords are considered a weakness of graphical authentication systems, introduced by...

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