US 2022/0092808 A1Published application

Dishwasher and method for acquiring three-dimensional image thereof

AssigneeLG Electronics Inc.

InventorBaekeun KWON

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Abstract

A dishwasher includes: a tub, a sump disposed in the tub, a rack disposed in the sump and receiving an object, a plurality of lighting devices disposed at the tub and configured to illuminate an upper end portion of the rack, a measuring camera disposed at the tub and capturing an image of the upper end portion of the rack and generating an object image, and a controller configured to perform a first lighting control on the lighting devices, acquiring a first object image generated based on a first image of the rack captured by the measuring camera, performing a second lighting control on the lighting devices, acquiring a second object image generated based on a second image of the upper end portion of the rack captured by the object measuring camera, and generating a three-dimensional shape image of the object based on the first and second object images.

Claims16

Dependent claims

A dishwasher, comprising:

a case that defines an exterior of the dishwasher and that has an opening at a front side of the case;
a door configured to open and close the opening of the case;
a tub that is configured to receive water;
a sump that is disposed in the tub;
a rack that is disposed in the sump and that is configured to receive an object;
a plurality of lighting devices that are disposed at a first position of an inner surface of the tub and that are configured to illuminate an upper end portion of the rack;
a measuring camera that is disposed at a second position of the inner surface of the tub and that is configured to capture an image of the upper end portion of the rack and generate an object image;
and
a controller configured to control operations of the dishwasher by:
performing a first lighting control on the plurality of lighting devices to illuminate the upper end portion of the rack,
acquiring, based on the first lighting control being performed, a first object image generated as a result of capturing of a first image of the upper end portion of the rack by the measuring camera,
performing a second lighting control on the plurality of lighting devices to illuminate the upper end portion of the rack,
acquiring, based on the second lighting control being performed, a second object image generated as a result of capturing of a second image of the upper end portion of the rack by the object measuring camera, and
generating a three-dimensional shape image of the object in the rack based on the first object image and the second object image.

11 more elements

A method for acquiring a three-dimensional image by a dishwasher, comprising:

performing a first lighting control on a plurality of lighting devices disposed at a first position of an inner surface of a tub;
acquiring, based on the first lighting control being performed, a first object image generated as a result of capturing of a first image of an upper end portion of a rack by a measuring camera disposed at a second position;
performing a second lighting control on the plurality of lighting devices;
acquiring, based on the second lighting control being performed, a second object image generated as a result of capturing of a second image of the upper end portion of the rack by the measuring camera;
and
generating a three-dimensional shape image of an object held in the rack based on the first object image and the second object image.

3 more elements

Dependencies are inferred from the claim text.