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In this paper, we propose two scalable architectures (say, Arc and Arc 2 ) that perform the discrete wavelet transform (DWT) of an 0-sample sequence in only 0 2 clock cycles. Therefore, they are at least twice as fast as the other known architectures. Also, they have an AT parameter that is approximately 1/2 that of already existing devices. This result has… (More)

In this paper, we present our proposed architecture (PA) for the direct two-dimensional discrete wavelet transform (DWT), which performs a complete dyadic (i.e., nonstandard) decomposition of an 0 0 image in approximately 2 0 4 clock cycles (ccs). Therefore, it consistently speeds up the performance of other known architectures, which commonly need… (More)

- Francescomaria Marino, Arcangelo Distante, Pier Luigi Mazzeo, Ettore Stella
- IEEE Trans. Systems, Man, and Cybernetics, Part C
- 2007

Rail inspection is a very important task in railway maintenance and it is periodically needed for preventing dangerous situations. Inspection is operated manually by trained human operator walking along the track searching for visual anomalies. This monitoring is unacceptable for slowness and lack of objectivity, because the results are related to the… (More)

- Francescomaria Marino, Earl E. Swartzlander
- IEEE Trans. Computers
- 1999

ÐThis paper presents a modular algorithm which is suitable for computing a large class of multidimensional transforms in a general purpose parallel environment without interprocessor communication. Since it is based on matrix-vector multiplication, it does not impose restrictions on the size of the input data as many existing algorithms do. The method is… (More)

- Gianluigi De Ruvo, Pasquale De Ruvo, Francescomaria Marino, Giuseppe Mastronardi, Pier Luigi Mazzeo, Ettore Stella
- Seventh International Workshop on Computer…
- 2005

Rail inspection is a very important task in railway maintenance and it is periodically needed for preventing dangerous situations. Inspection is operated manually by trained human operator walking along the track searching for visual anomalies. This monitoring is unacceptable for slowness and lack of objectivity, because the results are related to the… (More)

- Francescomaria Marino
- IEEE Trans. Signal Processing
- 2001

In this paper, we propose two architectures for the direct two–dimensional (2-D) discrete wavelet transform (DWT). The first one is based on a modified recursive pyramid algorithm (MRPA) and performs a “nonstandard” decomposition (i.e., Mallat’s tree) of an image in approximately 2 2 3 clock cycles (ccs). This result consistently speeds up other known… (More)

- Francescomaria Marino, Vincenzo Piuri, Earl E. Swartzlander
- IEEE Trans. Signal Processing
- 1999

The discrete wavelet transform is currently attracting much interest among researchers and practitioners as a powerful tool for a wide variety of digital signal and imaging processing applications. This correspondence presents an efficient approach to compute the twodimensional (2-D) discrete wavelet transform in standard form on parallel general-purpose… (More)

- Francescomaria Marino, Pasquale De Ruvo, Gianluigi De Ruvo, Massimiliano Nitti, Ettore Stella
- IEEE Trans. Industrial Electronics
- 2012

- Pasquale De Ruvo, Arcangelo Distante, Ettore Stella, Francescomaria Marino
- 2009 16th IEEE International Conference on Image…
- 2009

The railway maintenance is a particular application context required in order to prevent any dangerous situation.

- Francescomaria Marino, Ettore Stella, Antonella Branca, Nicola Veneziani, Arcangelo Distante
- Real-Time Imaging
- 2001

I n this paper we propose a specialized hardware architecture for the real time visual navigation of a mobile robot. The adopted navigation method is based on a two-steps approach. Features are extracted and matched over an image sequence which is captured by a videocamera (mounted on a mobile robot) during its motion. As a result, a 2D motion field is… (More)