Granted Patent B2

US 12,395,612 · App. 17/972,891 · Granted Aug 19, 2025

Inventors: Sungho Chae (Suwon-si, KR); Seungil Yoon (Suwon-si, KR); Hyunkyu Yun (Suwon-si, KR)

Assignee: SAMSUNG ELECTRONICS CO., LTD.

H04N9/3185G03B21/147H04N9/3141

Abstract

Claims (37)

1. A projector, comprising:

an image projection unit configured to project a guide image including a plurality of first objects;

a camera; and

a processor configured to:

obtain a captured image acquired by the camera, the captured image including the guide image projected through the image projection unit,

identify first location information corresponding to locations of each of the plurality of first objects included in the obtained captured image,

identify second location information, corresponding to locations of a plurality of second objects related to each of the locations of the plurality of first objects in the obtained captured image, useable for correction of an image to be projected through the image projection unit, and

acquire image correction information for the correction of the image to be projected through the image projection unit based on the first location information and the second location information.

2. The projector as claimed in claim 1 , wherein the captured image includes the plurality of second objects, and

the processor identifies the second location information corresponding to the locations of the plurality of second objects included in the obtained captured image.

3. The projector as claimed in claim 1 , wherein the processor identifies the locations of the plurality of second objects based on the first location information of each of the plurality of first objects, and identifies the second location information based on the identified locations.

4. The projector as claimed in claim 1 , wherein the guide image is an image related to a polygonal shape, and

the plurality of first objects are a plurality of point objects included in the image related to the polygonal shape.

5. The projector as claimed in claim 1 , wherein the image correction information includes a conversion function to convert an input image into an output image, and

the processor controls the image projection unit to convert the input image into the output image based on the conversion function and project the output image.

6. The projector as claimed in claim 1 , wherein the processor corrects the captured image based on a degree of distortion of the captured image, and

identifies the first location information based on the corrected captured image.

7. The projector as claimed in claim 1 , wherein the plurality of second objects are objects corresponding to a part of a user's body, and

the processor identifies the second location information corresponding to the locations of the plurality of second objects when the plurality of identified second objects in the obtained captured image are identified at a same location for equal to or greater than a critical time.

8. The projector as claimed in claim 1 , wherein, when the first location information and the second location information are identified by a preset number in the captured image, the processor acquires the image correction information based on the identified first location information and the identified second location information.

9. The projector as claimed in claim 1 , wherein, when a preset number of second location information is unidentified for a critical time in the captured image, the processor controls the image projection unit to project information guiding a preset number of second objects to be included in the captured image.

10. The projector as claimed in claim 1 , wherein the image projection unit includes:

a light source lamp configured to output a signal corresponding to the guide image including the plurality of first objects; and

a lens configured to project the guide image based on the signal output from the light source lamp.

11. A method of controlling a projector, comprising:

projecting a guide image including a plurality of first objects;

obtaining a captured image including the projected guide image;

identifying first location information corresponding to locations of each of the plurality of first objects included in the obtained captured image;

identifying second location information, corresponding to locations of a plurality of second objects related to each of the locations of the plurality of first objects in the obtained captured image, useable for correction of an image to be projected; and

acquiring image correction information for the correction of the image to be projected through an image projection unit based on the first location information and the second location information.

12. The method as claimed in claim 11 , wherein the captured image includes the plurality of second objects, and

in the identifying of the second location information, the second location information corresponding to the locations of the plurality of second objects included in the obtained captured image is identified.

13. The method as claimed in claim 11 , wherein, in the identifying of the second location information, the locations of the plurality of second objects are identified based on the first location information of each of the plurality of first objects, and the second location information is identified based on the identified locations.

14. The method as claimed in claim 11 , wherein the guide image is an image related to a polygonal shape, and

the plurality of first objects are a plurality of point objects included in the image related to the polygonal shape.

15. The method as claimed in claim 11 , wherein the image correction information includes a conversion function to convert an input image into an output image, and

the method of controlling further comprises converting the input image into the output image based on the conversion function and projecting the output image.

Assignments (1)

Priority Claims (1)

Continuity (2)

References Cited (42)