| 1 | A process which produces a new function out of any given function is called an operator. | |
| 2 | That was this symbolic vector operator in which the components are the partial derivative operators. | |
| 3 | The only thing they have in common is that both are what's called a first order differential operator. | |
| 4 | Schuchard says that convincing enough independent operators to make the change could be difficult. | |
| 5 | The algorithm is based on feature matching, and the so-called features mean zero-crossing points detected with various sizes of Laplacian of Gaussian operators. |