Luis Castro

Mr. Luis Castro


Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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20 February 2021 in Wireless Personal Communications
Verified
Journal Article
Closed access
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PJPaulo Fernandes Silva Júnior
Paulo Fernandes Silva Júnior
ESEWALDO EDER CARVALHO SANTANA
EWALDO EDER CARVALHO SANTANA
CCCarlos Augusto De Moraes Cruz
Carlos Augusto De Moraes Cruz
VAVivianne S. Aquino
Vivianne S. Aquino
LCLuis Castro
Luis Castro
PSPaulo H. F. Silva
Paulo H. F. Silva

16 September 2021 in Sensors
Verified
Journal Article
Open access
PDF file
DLDaniel Luna
Daniel Luna
ESEWALDO EDER CARVALHO SANTANA
EWALDO EDER CARVALHO SANTANA
PJPaulo Fernandes Silva Júnior
Paulo Fernandes Silva Júnior
JQJonathan Araujo Araujo Queiroz
Jonathan Araujo Araujo Queiroz
JNJoão Viana da Fonseca Neto
João Viana da Fonseca Neto
PSPaulo Henrique da Fonseca Silva
Paulo Henrique da Fonseca Silva
In this paper, a bioinspired method in the magnetic field memory of the bees, applied in a rover of precision pollination, is presented. The method calculates sharpness features by entropy and variance of the Laplacian of images segmented by color in the HSV system in real-time. A complementary positioning method based on area feature extraction between active markers was developed, analyzing color characteristics, noise, and vibrations of the probe in time and frequency, through the lateral image of the probe. From the observed results, it can be seen that the unsupervised method does not require previous calibration of target dimensions, histogram, and distances involved in positioning. The algorithm showed less sensitivity in the extraction of sharpness characteristics regarding the number of edges and greater sensitivity to the gradient, allowing unforeseen operation scenarios, even in small sharpness variations, and robust response to variance local, temporal, and geophysical of the magnetic declination, not needing luminosity after scanning, with the two freedom of degrees of the rotation.