Pedro Moreno-Bernal

We don’t have enough information about this author to calculate their statistics. If you think this is an error let us know.
Learn More
Wavelet transforms have proved to be very powerful tools for image compression, since many state-of-the-art image codecs employ DWT into their algorithms. One advantage of this transform is the provision of both frequency and spatial localization of image energy com-pacted into a small fraction of the transform coefficients, equally likely to be positive or(More)
In this paper a new sign coding approximation method for the wavelet coefficients in a 2D image codec based on a simulated annealing metaheuristic is presented. The efficiency of the proposed algorithm versus a genetic algorithm using benchmarks of Kodak is compared and showing that the proposed sign prediction algorithm is efficient and provides a(More)
This article presents the Iterated Local Search Algorithm (ILS) heuristic with a neighborhood hybrid structure, composed of four different types of adjacent structures. Their effectiveness was evaluated to maximize the micro alloyed steels mechanical strength. Tests show that ILS using a hybrid structure has better mechanical strength for the micralloyed(More)
  • 1