NUCLEAR PHYSICS; STUDY RESULTS FROM D.G. ASATRYAN ET AL PROVIDE NEW INSIGHTS INTO NUCLEAR PHYSICS

Science Letter

July 22, 2008

"A new computational approach to the edge-detection problem, based

on the continuous extension of discrete cosine transform (CEDCT)

technique is proposed. This technique has some attractive properties,

and other things being equal, it has more precise results than the

usual discrete Fourier or discrete cosine transforms, especially at

the intermediate points," scientists writing in the journal Physics

of Atomic Nuclei report (see also Nuclear Physics).

"That is why this technique allows one to estimate numerically a

finite number of a derivatives of a discrete set of multidimensional

points, using some specified properties of CEDCT. Because of using

the spectrum of a given set of points, this approach is applicable

to a wide area of signal-and image-processing problems. The results

obtained by the proposed approach are compared with the well-known

and widely used Canny algorithm," wrote D.G. Asatryan and colleagues.

The researchers concluded: "Some 1D and 2D numerical examples are

given."

Asatryan and colleagues published their study in Physics of Atomic

Nuclei (Edge-detection algorithm based on DCT continuous extension

technique. Physics of Atomic Nuclei, 2008;71(5):795-799).