0000000000364209
AUTHOR
F. Cointault
showing 2 related works from this author
Spray nozzle characterization using high speed imaging techniques
2013
International audience; Spray characteristics play an important role in the application accuracy and efficiency of plant protection products. In this study, the spray angles, liquid sheet lengths and spray shapes of five hydraulic spray nozzles (Albuz ATR orange, Albuz ATR red, TeeJet XR 110 01, TeeJet XR 110 04 and TeeJet AI 110 04) were measured using a developed high speed imaging system. Results were compared with the results of existing measuring techniques using a flow rate test bench, a horizontal patternator and a Phase Doppler Particle Analyzer (PDPA) laser.
High-speed motion estimation of fertilizer granules with Gabor filters
2008
In the context of fertilizer supply reduction, the understanding of the whole centrifugal spreading process became essential. Since few years we focused our research on the determination by image processing of the ejection conditions of flight of the granules, that is the trajectories and ejection angles, used as input data for ballistic flight to predict the fertilizer repartition on the ground. Due to relative high speed of the fertilizer granules (around 40 m.s -1 ), the previous parameters were evaluated using a specific high speed imaging system and image processing based on motion estimation method using Markov Random Fields method (MRFs). Even if the results were good (90% of correct…