Granted Patent B2

US 10,546,198 · App. 15/434,146 · Granted Jan 28, 2020

Abstract

Claims (33)

1. A method for computer-aided recognition of a transport container being empty, the method comprising:

arranging the transport carrier in an image capture region;

capturing a multiplicity of image data of the image capture region wherein said multiplicity of image data represents one of a temporal sequence and a spatial sequence of the transport container including a transport region of the transport container, wherein the image capture region defines an image background of the transport container;

determining respective contour patterns in each of the multiplicity of image data, wherein each respective contour pattern represents the transport container;

determining respective contour densities in each of the multiplicity of image data;

recognizing a type of the transport container based on the contour density in at least one image data of the multiplicity of image data;

discarding the multiplicity of image data other than the at least one image data recognized during said recognizing;

determining if the contour pattern in the at least one image data recognized during said recognizing includes a disturbance in the transport region of the transport container;

determining a deviation variable, which represents a deviation of the contour pattern in the at least one image data recognized during said recognizing caused by the disturbance from at least one reference pattern, wherein the at least one reference pattern represents an empty transport container while the transport carrier is in the image capture region and comprises a contour pattern representing the image background; and

outputting a signal if the deviation variable satisfies a predefined criterion.

2. The method of claim 1 , further comprising:

capturing image data of an additional region of the transport container;

determining an additional contour pattern, which represents the additional region, on the basis of the image data of the additional region of the transport container; and

wherein the at least one reference pattern includes a reference pattern associated with the additional region of the transport container and comparable to the additional contour pattern.

3. The method of claim 1 ,

wherein the predefined criterion represents an empty transport container and the signal comprises a recognized-as-empty signal.

4. The method of claim 1 ,

wherein said outputting further comprises outputting an input request, and

wherein a checkout system process transitions into a standby state until an input is carried out in response to the input request.

5. The method of claim 1 , further comprising:

determining colour information on the basis of the image data;

wherein the deviation variable furthermore represents a deviation of the colour information from reference colour information, wherein the reference colour information represents an empty transport container.

6. The method of claim 1 , further comprising:

determining topography information on the basis of the image data;

wherein the deviation variable furthermore represents a deviation of the topography information from reference topography information, wherein the reference topography information represents an empty transport container.

7. The method of claim 1 , further comprising:

determining depth information on the basis of the image data;

wherein the deviation variable furthermore represents a deviation of the depth information from reference depth information, wherein the reference depth information represents an empty transport container.

8. The method of claim 7 ,

wherein determining the depth information comprises capturing image information of an additional region of the transport container through the region.

9. The method of claim 1 ,

wherein each of the respective contour patterns in each of the multiplicity of image data represents

a lattice structure of the transport container.

Assignments (10)