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1. (WO2018141995) WEEDING SYSTEMS AND METHODS, RAILWAY WEEDING VEHICLES

Pub. No.:    WO/2018/141995    International Application No.:    PCT/EP2018/052979
Publication Date: Fri Aug 10 01:59:59 CEST 2018 International Filing Date: Wed Feb 07 00:59:59 CET 2018
IPC: G06T 7/00
E01H 11/00
Applicants: BILBERRY SAS
Inventors: SERRAT, Hugo
BEGUERIE, Jules
JOURDAIN, Guillaume
Title: WEEDING SYSTEMS AND METHODS, RAILWAY WEEDING VEHICLES
Abstract:
A weeding system (2) for a railway weeding vehicle (1) comprising a camera (3) and a spraying unit (4) with several supply modules, a nozzle (9) and a controller module to receive a weed species detection signal and to command the spraying of chemical agent. The weeding system (2) also comprises a weed species identification unit (5) with a communication module, a memory module and a processing module having several parallel processing cores. Each parallel processing core performs a convolution operation between a sub-matrix constructed from nearby pixels of the image and a predefined kernel stored in the memory module to obtain a feature representation sub-matrix of the pixel values of the image. The processing module computes a probability of presence of a weed species from the feature representation matrix and generates a weed species detection signal.