Autofocus Entropy Repositioning Method Bioinspired in the Magnetic Field Memory of the Bees Applied to Pollination.

Autor: Santos, Daniel de Matos Luna dos, Santana, Ewaldo Eder Carvalho, Junior, Paulo Fernandes da Silva, Queiroz, Jonathan Araujo, Neto, João Viana da Fonseca, Barros, Allan Kardec, Augusto de Moraes Cruz, Carlos, de Aquino, Viviane S., de Castro, Luís S. O., Freire, Raimundo Carlos Silvério, Silva, Paulo Henrique da Fonseca
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Zdroj: Sensors (14248220); Sep2021, Vol. 21 Issue 18, p6198, 1p
Abstrakt: 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. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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