Method for obtaining panning shot image and electronic device supporting the same

Patent metadata

Field	Value
Publication number	US-10491826-B2
Application number	US-201715791976-A
Country	US
Kind code	B2
Filing date	Oct 24, 2017
Priority date	Dec 16, 2016
Publication date	Nov 26, 2019
Grant date	Nov 26, 2019

Abstract

An electronic device is provided. The electronic device includes at least one lens, an image sensor, an optical image stabilization (OIS) module configured to move at least one of the image sensor or the at least one lens in relation to OIS, and an image processor electrically connected with the OIS module. The image processor is configured to control movement of the at least one lens in a specified direction by using the OIS module, and obtain a panning shot image of a moving subject while moving the at least one lens.

First claim

What is claimed is:

1. An electronic device comprising:
a display;
at least one lens;
an image sensor;
an optical image stabilization (OIS) module configured to move at least one of the image sensor or the at least one lens in relation to OIS; and
an image processor electrically connected with the OIS module,
wherein the image processor is configured to:
detect subjects having a movement of a specified magnitude or more,
output, on the display, at least one object corresponding to at least one subject moving at a specified speed or higher based on a preview image,
select the at least one object as an object to which a panning shot capture function is to be applied in response to a user input,
control movement of the at least one lens in a specified direction by using the OIS module, and
obtain a panning shot image of a moving subject while moving the at least one lens.

2. The electronic device of claim 1 , wherein the image processor is further configured to:
detect an angular velocity of the subject by using an image of a first camera; and
obtain the panning shot image based on a second camera configured to be moved by the OIS module,
wherein the second camera has a longer focal length than the first camera.

3. The electronic device of claim 1 , wherein the image processor is further configured to:
detect a speed of the subject, and
obtain a shutter speed by which a background of the subject has a specified percentage of image blur based on the speed of the subject.

4. The electronic device of claim 1 , wherein the image processor is further configured to adjust at least one of sensitivity of image exposure, an F-number, or a shutter speed to adjust an image blur thickness of the panning shot image while maintaining an exposure of the panning shot image to be obtained at a specified level.

5. The electronic device of claim 4 , wherein the image processor is further configured to:
allow a sensitivity adjustment limit of the image exposure, and
allow the sensitivity of the image exposure adjusted to correspond to the shutter speed not to exceed the sensitivity adjustment limit of the image exposure.

6. The electronic device of claim 4 , wherein the image processor is further configured to:
allow a diaphragm adjustment limit, and
allow an F-number adjusted to correspond to the shutter speed not to exceed the diaphragm adjustment limit.

7. The electronic device of claim 1 , wherein the OIS module includes:
a first axial module configured to move the at least one lens in a first axial direction, and
a second axial module configured to move the at least one lens in a second axial direction different from the first axial direction.

8. The electronic device of claim 7 , wherein the image processor is further configured to drive at least one of the first axial module or the second axial module to move the at least one lens in a same direction as a direction of movement of the subject.

9. The electronic device of claim 1 , further comprising:
a sensor configured to generate a sensor signal according to a shake of the electronic device,
wherein the image processor is further configured to adjust a speed of movement of the OIS module in relation to the obtaining of the panning shot image according to the sensor signal.

10. The electronic device of claim 8 , further comprising:
a sensor configured to generate a sensor signal according to a shake of the electronic device,
wherein the image processor is further configured to move the OIS module in a direction corresponding to the direction of movement of the subject by applying the sensor signal and to move the OIS module at a speed of movement of an image that is obtained to be identical with the speed of movement of the subject.

11. The electronic device of claim 1 ,
wherein the OIS module includes a plurality of axial modules configured to move the at least one lens in different directions, and
wherein the image processor is further configured to:
obtain the panning shot image by using an axial module corresponding to a direction of movement of the specified object, among the plurality of axial modules, and
apply the remaining axial modules to OIS.

12. A method for obtaining a panning shot image, the method comprising:
obtaining a preview image;
detecting subjects having a movement of a specified magnitude or more based on the preview image obtained by an electronic device;
outputting, on a display, at least one object corresponding to at least one subject moving at a specified speed or higher based on the preview image;
selecting the at least one object as an object to which a panning shot capture function is to be applied in response to a user input; and
obtaining a panning shot image.

13. The method of claim 12 , further comprising:
determining whether a subject having a movement of a specified magnitude or more exists in the preview image;
outputting, on a display, a shutter button associated with taking the panning shot image in a case where the subject having the movement of the specified magnitude or more exists in the preview image; and
omitting the outputting of the shutter button associated with taking the panning shot image on the display, or outputting a shutter button configured to indicate a deactivated state of a panning shot capture function in a case where the subject having the movement of the specified magnitude or more does not exist in the preview image.

14. The method of claim 12 , further comprising:
maintaining an exposure of the panning shot image to be obtained at a specified level and simultaneously adjusting at least one of a sensitivity of image exposure, an F-number, or a shutter speed such that an image blur thickness to be displayed on the panning shot image has a specified thickness.

15. The method of claim 12 , further comprising:
collecting a sensor signal according to a shake of the electronic device; and
adjusting a speed of an optical image stabilization (OIS) module moving in relation to the capturing of the panning shot image according to the sensor signal.

16. The method of claim 15 , wherein the adjusting of the speed includes:
moving the OIS module at a same speed as a speed of movement of the at least one subject in a direction corresponding to the direction of movement of the at least one subject by applying the sensor signal.

17. The method of claim 12 , wherein the obtaining of the panning shot image includes:
obtaining the panning shot image by using an axial module moving in a same direction as the direction of movement of the at least one subject, among a plurality of axial modules included in the optical image stabilization (OIS) module; and
compensating an image sensor according to OIS by using remaining axial modules.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Kim Ji Young
• Shin Dong Eui
• Park Jae Hyoung
• Lee Jeong Won
• Kim Byung Ho

Classifications

• H04N23/6812

  based on additional sensors, e.g. acceleration sensors · CPC title

• H04N23/633

  for displaying additional information relating to control or operation of the camera · CPC title

• H04N23/687 Primary

  by shifting the lens or sensor position · CPC title

• H04N23/58 Primary

  Means for changing the camera field of view without moving the camera body, e.g. nutating or panning of optics or image sensors · CPC title

• H04N23/62

  Control of parameters via user interfaces · CPC title