Method and device for classifying plants, and computer program product
A method for classifying plants. In the method, the plants or their plant components are detected within an evaluation region at a first evaluation point in time with the aid of an optical and/or infrared detection unit, and the detected image data of the detection unit are evaluated with the aid of an algorithm. Using the evaluation, it is possible to distinguish at least one first plant type from at least one second plant type. The second plant type being treated in particular with a medium, preferably a liquid spray.
1 . A method for classifying plants, the method comprising the following steps:
detecting the plants or plant components of the plants within an evaluation region at a first evaluation point in time using an optical and/or infrared detection unit that includes multiple optical and/or infrared recorders;
evaluating detected image data of the infrared detection unit using an algorithm;
distinguishing, using the evaluation, at least one first plant type from at least one second plant type;
treating the second plant type with a medium;
wherein certain of the plants or their plant components are assigned to the first plant type at the first evaluation point in time when, within the evaluation region, they are not associated with a plant row formed by the first plant type and protrude into the evaluation region from an upper boundary or a lower boundary of the evaluation region up to a maximum first distance.
2 . The method as recited in claim 1 , wherein the medium is a liquid spray.
3 . The method as recited in claim 1 , wherein certain of the plants or plant components are recognized as belonging to a plant row when they extend continuously, without interruption, from the upper boundary to the oppositely situated lower boundary of the evaluation region.
4 . The method as recited in claim 1 , wherein those of the plants or plant components, which are not associated with the plant row and which at the first evaluation point in time are assigned to the first plant type, are additionally situated within a second distance from the plant row.
5 . The method as recited in claim 1 , wherein those of the plants or plant components initially assigned to the first plant type and not associated with the plant row are assigned to the second plant type when, at a second evaluation point in time after the first evaluation point in time, the distance of the plants or plant components from the upper boundary or the lower boundary of the evaluation region is greater than the first distance.
6 . The method as recited in claim 1 , wherein those of the plants or plant components initially assigned to the first plant type and not associated with the plant row are assigned to the second plant type when, at a second evaluation point in time after the first evaluation point in time, a plant-free space is formed between the plants or plant components and the upper boundary or the lower boundary of the evaluation region.
7 . The method as recited in claim 1 , wherein the infrared detection unit is moved in a direction of the upper boundary or the lower boundary of the evaluation region during the detection of the plants or plant components.
8 . The method as recited in claim 7 , wherein image data from two evaluation regions that are evaluated in succession partially overlap one another in a direction of the upper boundary or the lower boundary of the evaluation region.
9 . A device as an integral part of an agricultural vehicle, the device comprising:
an optical and/or infrared detection unit that includes multiple optical and/or infrared recorders; and
a control device configured to classify plants, the control device configured to:
detect the plants or plant components of the plants within an evaluation region at a first evaluation point in time using the infrared detection unit,
evaluate detected image data of the infrared detection unit using an algorithm;
distinguish, using the evaluation, at least one first plant type from at least one second plant type,
treat the second plant type with a medium,
wherein certain of the plants or their plant components are assigned to the first plant type at the first evaluation point in time when, within the evaluation region, they are not associated with a plant row formed by the first plant type and protrude into the evaluation region from an upper boundary or a lower boundary of the evaluation region up to a maximum first distance.
10 . The device as recited in claim 9 , further comprising:
a sprayer including at least one selectively activatable spray nozzle configured to treat plants or plant components of the second plant type.
11 . A non-transitory data medium on which is stored a computer program for classifying plants, the computer program, when executed by a computer, causing the computer to perform the following steps:
detecting the plants or plant components of the plants within an evaluation region at a first evaluation point in time using an optical and/or infrared detection unit that includes multiple optical and/or infrared recorders;
evaluating detected image data of the infrared detection unit using an algorithm;
distinguishing, using the evaluation, at least one first plant type from at least one second plant type; and
treating the second plant type with a medium;
wherein certain of the plants or their plant components are assigned to the first plant type at the first evaluation point in time when, within the evaluation region, they are not associated with a plant row formed by the first plant type and protrude into the evaluation region from an upper boundary or a lower boundary of the evaluation region up to a maximum first distance.