Academic Journals Database
Disseminating quality controlled scientific knowledge

Curvature Entropy for Curved Profile Generation

ADD TO MY LIST
 
Author(s): Yoshiki Ujiie | Takeo Kato | Koichiro Sato | Yoshiyuki Matsuoka

Journal: Entropy
ISSN 1099-4300

Volume: 14;
Issue: 3;
Start page: 533;
Date: 2012;
Original page

Keywords: curves | information theory | shape generation

ABSTRACT
In a curved surface design, the overall shape features that emerge from combinations of shape elements are important. However, controlling the features of the overall shape in curved profiles is difficult using conventional microscopic shape information such as dimension. Herein two types of macroscopic shape information, curvature entropy and quadrature curvature entropy, quantitatively represent the features of the overall shape. The curvature entropy is calculated by the curvature distribution, and represents the complexity of a shape (one of the overall shape features). The quadrature curvature entropy is an improvement of the curvature entropy by introducing a Markov process to evaluate the continuity of a curvature and to approximate human cognition of the shape. Additionally, a shape generation method using a genetic algorithm as a calculator and the entropy as a shape generation index is presented. Finally, the applicability of the proposed method is demonstrated using the side view of an automobile as a design example.
Affiliate Program     

Tango Jona
Tangokurs Rapperswil-Jona