Moving picture photographing apparatus having dual cameras using correction information

Patent metadata

Field	Value
Publication number	US-10694126-B2
Application number	US-201715619328-A
Country	US
Kind code	B2
Filing date	Jun 9, 2017
Priority date	Jun 9, 2016
Publication date	Jun 23, 2020
Grant date	Jun 23, 2020

Abstract

A moving picture photographing apparatus having dual camera includes a first camera configured to capture images, a second camera configured to capture images, and a controller configured to cause the first camera to capture a motion picture, generate final correction information based on an image received via the second camera, and cause the first camera to adjust capture of the motion picture based on the final correction information.

First claim

What is claimed is:

1. A motion picture capturing apparatus comprising:
a first camera configured to capture images;
a second camera configured to capture images; and
a controller configured to:
cause the first camera to capture a motion picture;
generate final correction information based on an image received via the second camera; and
change a setting value of the first camera based on the final correction information and correction information between the first camera and the second camera, wherein the setting value includes at least one of ISO information, exposure time information, color balance information, or lens position information of the first camera,
wherein the first and second cameras have different angles of view, and
wherein the controller is further configured to:
maintain a first setting value of the first camera while acquiring the final correction information during capture of the motion picture,
determine a preset time period according to factors including relative positioning of a first subject and a second subject within the image, movement of the first subject and second subject, and settings of the first camera based on the image,
and change the first setting value of the first camera to a second setting value gradually over the preset time period based on the final correction information,
wherein the preset time period corresponds to a speed at which a focal point is moved between the first subject and the second subject and corresponds to a speed at which a brightness of the image or a white balance is changed from a first value to a second value, wherein the preset time period when the first subject and the second subject are positioned relatively close to each other is less than the preset time period when the first subject and the second subject are positioned relatively distant from each other.

2. The motion picture capturing apparatus according to claim 1 , wherein the controller is further configured to generate the final correction information by:
generating preliminary correction information based on the image received via the second camera; and
adjusting the second camera based on the generated preliminary correction information to receive an adjusted image via the second camera.

3. The motion picture capturing apparatus according to claim 2 , wherein the controller is further configured to generate the final correction information to include settings of the second camera when it is determined that adjustments to the adjusted image received via the second camera are completed.

4. The motion picture capturing apparatus according to claim 1 , wherein the final correction information comprises at least auto focus information, auto exposure information, or auto white balance information.

5. The motion picture capturing apparatus according to claim 2 , wherein the preliminary correction information comprises at least ISO information, exposure time information, color balance information, or lens position information of the second camera.

6. The motion picture capturing apparatus according to claim 1 , wherein the final correction information comprises at least ISO information, exposure time information, color balance information, or lens position information of the first camera.

7. The motion picture capturing apparatus according to claim 1 , wherein:
the final correction information comprises at least focus information, brightness information, or color balance information; and
the controller is further configured to cause the first camera to adjust capture of the motion picture based on the final correction information over a preset time period.

8. The motion picture capturing apparatus according to claim 1 , wherein the controller is further configured to generate the final correction information in response to a triggering event.

9. The motion picture capturing apparatus according to claim 8 , further comprising:
an input unit configured to receive an input; and
a sensor configured to detect movement of the motion picture capturing apparatus,
wherein the triggering event comprises at least a change in image received via at least the first or second camera, a movement of the motion picture capturing apparatus detected via the sensor, an input for changing a focal point received via the input unit, or an input for starting image auto correction received via the input unit.

10. The motion picture capturing apparatus according to claim 8 , wherein the controller is further configured to activate the second camera in response to the triggering event.

11. The motion picture capturing apparatus according to claim 1 , wherein the first and second cameras are disposed at a same side of the motion picture capturing apparatus.

12. The motion picture capturing apparatus according to claim 2 , wherein the controller is further configured to generate new preliminary correction information and adjust the second camera again based on the new preliminary correction information when it is determined that the adjustments to the adjusted image are not completed.

13. A method for controlling a terminal for capturing a motion picture, the method comprising:
capturing a motion picture via a first camera of the terminal;
generating final correction information based on an image received via a second camera of the terminal; and
changing a setting value of the first camera based on the final correction information and correction information between the first camera and the second camera, wherein the setting value includes at least one of ISO information, exposure time information, color balance information, or lens position information of the first camera,
wherein the first and second cameras have different angles of view,
wherein the generating the final correction information comprises maintaining a first setting value of the first camera while acquiring the final correction information during capture of the motion picture,
wherein the changing the setting value of the first camera comprises determining a preset time period according to factors including relative positioning of a first subject and a second subject within the image, movement of the first subject and the second subject, and settings of the first camera based on the image,
and changing the first setting value of the first camera to a second setting value gradually over the preset time period based on the final correction information, and
wherein the preset time period corresponds to a speed at which a focal point is moved between the first subject and the second subject and corresponds to a speed at which a brightness of the image or a white balance is changed from a first value of to a second value, and
wherein the preset time period when the first subject and the second subject are positioned relatively close to each other is less than the preset time period when the first subject and the second subject are positioned relatively distant from each other.

14. The method of claim 13 , wherein generating the final correction information comprises:
generating preliminary correction information based on the image received via the second camera; and
adjusting the second camera based on the generated preliminary correction information to receive an adjusted image via the second camera.

15. The method of claim 14 , wherein the final correction information is generated to include settings of the second camera when it is determined that adjustments to the adjusted image received via the second camera are completed.

16. The method of claim 13 , wherein the final correction information comprises at l

Assignees

• Lg Electronics Inc

Inventors

• Lee Junwoo
• Chae Kyuyeol

Classifications

• H04N23/67

  Focus control based on electronic image sensor signals · CPC title

• H04N23/90

  Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums · CPC title

• H04N23/66

  Remote control of cameras or camera parts, e.g. by remote control devices · CPC title

• H04N5/144 Primary

  Movement detection (for video coding H04N19/503; analysis of motion in general G06T7/20) · CPC title

• H04N23/71

  Circuitry for evaluating the brightness variation · CPC title