Hierarchical edge detector using the first- and second-derivative operators

Ralf Schuster; Nirwan Ansari; Ali R. Bani-Hashemi

doi:10.1117/12.131532

1 November 1992 Hierarchical edge detector using the first- and second-derivative operators

Ralf Schuster, Nirwan Ansari, Ali R. Bani-Hashemi

Proceedings Volume 1825, Intelligent Robots and Computer Vision XI: Algorithms, Techniques, and Active Vision; (1992) https://doi.org/10.1117/12.131532
Event: Applications in Optical Science and Engineering, 1992, Boston, MA, United States

Abstract

This paper presents a new method for edge detection by combining the Sobel operator and the Laplacian of Gaussian (LoG) operator. The underlying idea is to combine the advantages of both operators and eliminate their disadvantages. Different methods of combining the two operators are considered. One method yields promising results in precise and blur free edge detection, and good stability versus image noise. A method for designing the LoG kernel is also presented.

Citation Download Citation

Ralf Schuster, Nirwan Ansari, and Ali R. Bani-Hashemi "Hierarchical edge detector using the first- and second-derivative operators", Proc. SPIE 1825, Intelligent Robots and Computer Vision XI: Algorithms, Techniques, and Active Vision, (1 November 1992); https://doi.org/10.1117/12.131532

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