A FAST EDGE DETECTION ALGORITHM USING BINARY LABELS

作者：Shi Yuying^*; Gu Ying; Wang Li Lian; Tai Xue Cheng

来源：Inverse Problems and Imaging, 2015, 9(2): 551-578.

DOI：10.3934/ipi.2015.9.551

• Mumford-Shah model
• open/closed curves
• offset curves
• binary level set method
• edge detection

Edge detection (for both open and closed edges) from real images is a challenging problem. Developing fast algorithms with good accuracy and stability for noisy images is difficult yet and in demand. In this work, we present a variational model which is related to the well-known Mumford-Shah functional and design fast numerical methods to solve this new model through a binary labeling processing. A pre-smoothing step is implemented for the model, which enhances the accuracy of detection. Ample numerical experiments on grey-scale as well as color images are provided. The efficiency and accuracy of the model and the proposed minimization algorithms are demonstrated through comparing it with some existing methodologies.

• 出版日期2015-5
• 单位华北电力大学