R
Ricardo Arizaga
Researcher at National University of La Plata
Publications - 67
Citations - 1511
Ricardo Arizaga is an academic researcher from National University of La Plata. The author has contributed to research in topics: Speckle pattern & Dynamic speckle. The author has an hindex of 20, co-authored 67 publications receiving 1418 citations. Previous affiliations of Ricardo Arizaga include National Scientific and Technical Research Council.
Papers
More filters
Journal ArticleDOI
Speckle time evolution characterization by the co-occurrence matrix analysis
TL;DR: In this paper, the authors proposed the use of the co-occurrence matrix of the time history of the intensity of a speckle pattern and suggested a measure of the activity based on one of its second order moments.
Journal ArticleDOI
Display of local activity using dynamical speckle patterns
TL;DR: A display to distinguish loci of equal activity in samples showing dynamic speckle patterns and the generalized differences and the weighted generalized difference operations are presented and compared with previously reported methods.
Journal ArticleDOI
Assessment of Seed Viability by Laser Speckle Techniques
Roberto A. Braga,Inácio Maria Dal Fabbro,Flávio Meira Borém,Giovanni Francisco Rabelo,Ricardo Arizaga,Héctor Rabal,Marcelo Trivi +6 more
TL;DR: In this article, the biological activity of seed tissues has been inferred from quantitative and qualitative measurements of their speckle activity, and the authors show that the biospeckle technique has a potential as a methodology to assess seed viability.
Journal ArticleDOI
Bio-speckle assessment of bruising in fruits
TL;DR: In this paper, the authors suggest a bio-speckle technique as a potential methodology for the study of impact on apples and the analysis of bruises produced by them, and correlate physical properties of apples with quality factors using a non-contact and non-invasive technique.
Journal ArticleDOI
Detection of fungi in beans by the laser biospeckle technique
Roberto A. Braga,Giovanni Francisco Rabelo,Luis R. Granato,Ederson F. Santos,José da Cruz Machado,Ricardo Arizaga,Héctor Rabal,Marcelo Trivi +7 more
TL;DR: It was observed that the activity of the biospeckle was different for the seeds that were inoculated from those not inoculated and the difference was observed for two fungi.