|
1. |
Adaptive smoothing respecting feature directions
Carmona, R.A.; Sifen Zhong;
Image Processing, IEEE Transactions on
Volume 7,
Issue 3,
March 1998
Page(s):353
-
358
Abstract:
Accurate extraction of the image feature directions is essential to image smoothing and other image processing tasks. We show that the gradient-based feature direction extraction method can be very erroneous. The gradient is too local, and it cannot detect oscillations. We have developed two new methods: the Hessian method, an approach using higher order differentiations, and the Gabor (1946) method, an approach using space-frequency analysis
|
Cart
