Image data mining from financial documents based on wavelet features. - Ossama El Badawy; Mahmoud R. El-Sakka; Khaled Hassanein; Mohamed S. Kamel (ICIP (1), 2001)

Shape Representation Using Concavity Graphs. - Ossama El Badawy; Mohamed Kamel (ICPR (3), 2002)

Shape-Based Image Retrieval Applied to Trademark Images. - Ossama El Badawy; Mohamed Kamel (Int. J. Image Graph., 2002)

Shape Retrieval using Concavity Trees. - Ossama El Badawy; Mohamed Kamel (ICPR (3), 2004)

Matching Concavity Trees. - Ossama El Badawy; Mohamed Kamel (SSPR/SPR, 2004)

Envelope Detection of Multi-object Shapes. - Naif Alajlan; Ossama El Badawy; Mohamed S. Kamel; George H. Freeman (ICIAR, 2005)

Compressing 2-D Shapes Using Concavity Trees. - Ossama El Badawy; Mohamed S. Kamel (ICIAR, 2005)

Hierarchical representation of 2-D shapes using convex polygons: a contour-based approach. - Ossama El Badawy; Mohamed S. Kamel (Pattern Recognit. Lett., 2005)