Edge detection system

Abstract

Abstract PURPOSE:To detect outward shape edges of a solid body precisely by obtaining the 1st edge candidate mask image consisting of edge components with high edge intensity and the 2nd edge candidate mask image including edge components with high edge intensity. CONSTITUTION:An image processing pat 3 inputs a gradational image stored in an image memory 2 under the control of a control part 4 to detect edge candidates of the solid body, for example, by differentiating the gradational image. The edge candidate detection result is converted into a binary signal on the basis of a specific threshold value to obtain the 1st edge candidate mask image consisting of only edge components with high edge intensity and the 2nd edge candidate mask image including edge components with high edge intensity respectively. Then, edge components in the 2nd edge candidate mask image corresponding to respective edge components in the 1st edge candidate mask image are detected as edges indicating the outer appearance of the solid body.

Inventors

• 👤 Hideo Numagami
• 👤 沼上　英雄
• 👤 Yoshinori Kuno
• 👤 義徳 久野

Bibliographic Details