Evaluation de la répartition d'engrais au sol par analyse d'images rapides lors de l'épandage centrifuge d'engrais

Abstract : Although mechanically simple, centrifugal spreaders used for mineral fertilization involve not well-known complex physics phenomenons. To avoid bad fertilizer inputs in the field, the centrifugal spreading technique and particularly the initial conditions of flight of the granules have to be precisely understood. This paper presents the conception of a fast image processing system for the characterization of the centrifugal fertilizer spreading. This patented multiexposure system allows to determine granule trajectories after their ejection, by using a high resolution digital camera combined with a set of flashes, and different motion estimation methods. The results are then used in a ballistic model to obtain the fertilizer repartition on the ground.
Document type :
Other publications
Complete list of metadatas

Cited literature [8 references]  Display  Hide  Download

https://hal-agrosup-dijon.archives-ouvertes.fr/hal-01839812
Contributor : Administrateur Agrosupdijon <>
Submitted on : Monday, July 16, 2018 - 9:36:50 AM
Last modification on : Saturday, September 14, 2019 - 1:04:25 AM
Long-term archiving on : Wednesday, October 17, 2018 - 12:59:59 PM

File

A63.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : hal-01839812, version 1

Collections

Citation

Frédéric Cointault, Sylvain Villette. Evaluation de la répartition d'engrais au sol par analyse d'images rapides lors de l'épandage centrifuge d'engrais. 1997. ⟨hal-01839812⟩

Share

Metrics

Record views

37

Files downloads

34