Description of Object Shapes by Apparent Boundary and Convex Hull

• Published in: Pattern Recognition
• Main Authors: Yu, Shan, Thonnat, Monique
• Other Authors: Scene Analysis and Symbolic Image Processing (PASTIS), Inria Sophia Antipolis - Méditerranée (CRISAM), Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 1993
• Subjects: Image analysis; Shape description; Apparent boundary; Convex hull; Distance curve; Planktonic foraminifera; [INFO]Computer Science [cs]
• Online Access: https://hal.inria.fr/hal-01087881; https://doi.org/10.1016/0031-3203(93)90091-A

International audience The notions of the apparent boundary and the strict apparent boundary of an object are introduced, which, together with the convex hull, provide an automatic approach for object shape analysis. Various properties of the apparent boundary and the strict apparent boundary are established which show that they are good approximations of the real object boundary. Applications of the apparent boundary and the convex hull to the automatic shape characterization of planktonic foraminifera are presented.