ORBi: Piron Alexis - Weed detection and/or destruction

Reference : Weed detection and/or destruction


	Document type :	Patent : Patent
	Discipline(s) :	Engineering, computing & technology : Multidisciplinary, general & others
	To cite this reference:	http://hdl.handle.net/2268/74354

Title :	Weed detection and/or destruction
Language :	English
Alternative title :	[en] Détection de mauvaises herbes et/ou destruction
Author, co-author :	Piron, Alexis [Université de Liège - ULg > Gembloux Agro-Bio Tech > Gembloux Agro-Bio Tech >]
	Destain, Marie-France [Université de Liège - ULg > Sciences et technologie de l'environnement > Mécanique et construction >]
Publication date :	23-Dec-2009
Creation date :	2009-06-18
Publisher :	World Intellectual Property Organization
Patent/publication number (10-11) :	WO 2009/153304 A1
Priority number (30) :	0801 1245.1
Report number :	none
Country :	Tous pays
Depositor :	Faculté Universitaire des Sciences Agronomiques de Gembloux
International classification (IPC) (51) :	G06K9/00
European classification (ECLA) (52) :	H04N13/00
International protection: country codes (81) :	AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CHG, CL, CN, CO, CR, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PKL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
European protection: country codes (84) :	ARIPO, Eurasian, European
Keywords :	[en] stereoscopic images ; weeds
Abstract :	[en] A method of determining the position of weeds growing in soil amongst crops comprising the steps of:- Using a camera to acquiring a stereoscopic image of plants growing on soil; - Segmentation plant pixels and soil pixels; - Creating a modelised height profile of the soil at positions at which soil pixels have not been captured by the stereoscopic image based on information derived from adjacent soil pixels; - Determining a corrected plant height at plant pixels representing the distance between the plant pixel and the modelised soil underneath; - Differentiating between weeds and crops by ciomparing the corrected plant height with an expected crop height. Once the position of a weed has been determined, it may be destroyed, for example by heat applied to the identified position or by a robotic arm.
Funders :	DGO6
Name of the research project :	RECADVEN
Target :	Researchers ; Professionals
Permalink :	http://hdl.handle.net/2268/74354

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