Digital photographing apparatus, method of controlling the same, and computer-readable storage medium

• US 9,143,684 B2
• Filed: 02/09/2011
• Issued: 09/22/2015
• Est. Priority Date: 05/12/2010
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Choi, Myung-kyu, Jang, Soon-geun
• Primary Examiner(s): Torrente, Richard
• Assistant Examiner(s): Habib, Irfan
• Application Number:
  US13/023,621
• Publication Number:
  US 20110279649A1
• Time in Patent Office: 1,686 Days
• Field of Search: 348/46
• US Class Current: 1/1
• CPC Class Codes: H04N 13/20 Image signal generators
• CPC Class Codes: H04N 13/239 using two 2D image sensors having a relative position equal to or related to the interocular distance H04N13/243 takes precedence
• CPC Class Codes: H04N 23/40 Circuit details for pick-up tubes
• CPC Class Codes: H04N 23/68 for stable pick-up of the scene, e.g. compensating for camera body vibrations
• CPC Class Codes: H04N 23/684 performed by controlling the image sensor readout, e.g. by controlling the integration time

Abstract

An apparatus, computer readable medium, and a method of controlling a digital photographing apparatus comprising a plurality of optical systems, the method including deriving shake information from the plurality of optical systems; and determining a base optical system from among the plurality of optical systems according to the shake information.

Claims

1. A method of controlling a digital photographing apparatus comprising a plurality of optical systems, the method comprising:

deriving shake information from each of the plurality of optical systems;

detecting a user'"'"'s input for selecting a base optical system determination type; and

selecting a base optical system from among the plurality of optical systems according to the shake information;

wherein the step of selecting a base optical system further comprises determining that an optical system least shaken from among the plurality of optical systems is the base optical system;

wherein the shake information is a user'"'"'s grip position for the digital photographing apparatus;

wherein the step of deriving shake information comprises detecting the user'"'"'s grip position, and the step of selecting the base optical system further comprises determining that an optical system closest to the user'"'"'s grip position is the base optical system;

wherein if the user'"'"'s input indicates a prior determination type, the steps of deriving the shake information and selecting the base optical system are performed before capturing an image, and the step of deriving of the shake information further comprises detecting the user'"'"'s grip position, and the step of selecting of the base optical system further comprises determining that an optical system closest to the user'"'"'s grip position is the base optical system, and wherein if the user'"'"'s input indicates a post determination type, the steps of deriving of the shake information and the determining of the base optical system are performed after capturing an image, and the step of deriving of the shaking information further comprises calculating PSFs from the plurality of images captured via the plurality of optical systems, and the step of selecting the base optical system further comprises determining that an optical system least shaken from among the plurality of optical systems is the base optical system based on the calculated PSFs.

2. The method of claim 1, wherein the steps of deriving shake information and the step of selecting a base optical system are performed before capturing an image.

3. The method of claim 1, wherein the step of deriving shake information further comprises calculating point spread functions (PSFs) from a plurality of images captured via the plurality of optical systems, and the step of selecting a base optical system further comprises selecting a base optical system from among the plurality of optical systems according to the shake information based on the calculated PSFs.

4. The method of claim 1, wherein the method of controlling the digital photographing apparatus further comprises:

if a plurality of images comprises at least one short-time exposed image and at least one long-time exposed image and if the derived shake information indicates the digital photographing apparatus is affected by hand-shake,

controlling capturing of the at least one short-time exposed image in the base optical system and capturing of the at least one long-time exposed image in a reference optical system of the plurality of optical systems.

5. The method of claim 1, wherein the method of controlling the digital photographing apparatus further comprises:

if a plurality of images comprises at least one short-time exposed image and at least one long-time exposed image and if the derived shake information indicates the digital photographing apparatus is not affected by hand-shake,

controlling capturing of the at least one long-time exposed image in the base optical system and capturing of the at least one short-time exposed image in a reference optical system of the plurality of optical systems.

6. The method of claim 1, wherein the method of controlling the digital photographing apparatus further comprises:

if the plurality of images comprises at least one image having a small exposure value and at least one image having a large exposure value, and if a plurality of images for correcting backlight are captured through the plurality of optical systems,

controlling capturing of the at least one image having a large exposure value in the base optical system and controlling capturing of the at least one image having a small exposure value in a reference optical system of the plurality of optical systems.

7. The method of claim 1, wherein the method of controlling the digital photographing apparatus further comprises:

if at least one wide angle image and at least one telescopic image are captured through the plurality of optical systems,

controlling capturing of the at least one telescopic image in the base optical system and controlling capturing of the at least one wide angle image in a reference optical system of the plurality of optical systems.

8. The method of claim 1, wherein the method of controlling the digital photographing apparatus further comprises:

if a plurality of images for obtaining a three-dimensional image are captured through the plurality of optical systems,

controlling capturing of an image having a short exposure time in the base optical system.

9. The method of claim 1, wherein the method of controlling the digital photographing apparatus further comprises:

if a plurality of images for obtaining a three-dimensional image are captured through the plurality of optical systems,

controlling capturing of an image having a large amount of input data in the base optical system.

10. The method of claim 1, further comprising selecting an image captured in the base optical system as a result image.

11. A digital photographing apparatus comprising:

a plurality of optical systems;

at least one image pickup device configured to convert light that has passed through the plurality of optical systems into an electrical signal;

a shake information deriving unit configured to derive shake information from each of the plurality of optical systems; and

a base optical system determining unit configured to select a base optical system from among the plurality of optical systems according to the shake information,

a user input detector configured to detect a user'"'"'s input for selecting a base optical system determination type;

a grip position detector configured to detect the user'"'"'s grip position before capturing an image;

a PSF calculator configured to calculate a PSFs from a plurality of images captured via the plurality of optical systems, wherein the shake information deriving unit is further configured to derive shake information based on the calculated PSF'"'"'s;

a prior determining unit configured to determine that an optical system closest to the detected grip position is the base optical system before capturing an image if the user'"'"'s input indicates a prior determination type; and

a post determining unit configured to determine that an optical system least shaken based on the derived shake information from among the plurality of optical systems is the base optical system if the user'"'"'s input indicates a post determination type,

wherein the base optical system determining unit is configured to determine that an optical system least shaken from among the plurality of optical systems is the base optical system;

wherein the shake information is a user'"'"'s grip position for the digital photographing apparatus;

wherein the shaking information deriving unit comprises a grip position detector configured to detect the user'"'"'s grip position, and the base optical system determining unit comprises a prior determining unit configured to determine that an optical system closest to the user'"'"'s grip position is the base optical system.

12. The digital photographing apparatus of claim 11, wherein the grip position detector is further configured to detect the user'"'"'s grip position before capturing an image, and the prior determining unit is further configured to select the base optical system before capturing an image.

13. The digital photographing apparatus of claim 11, wherein the shake information deriving unit is further configured to derive shake information based on a PSF calculator configured to calculate PSFs from the plurality of images captured via the plurality of optical systems, and the base optical system determining unit is further configured to determine based on the shake information that an optical system less shaken from among the plurality of optical systems is the base optical system.

14. The digital photographing apparatus of claim 11, the digital photographing apparatus further comprising:

a photographing controller configured to control capturing of at least one short-time exposed image in the base optical system and at least one long-time exposed image in a reference optical system of the plurality of optical systems if a plurality of images captured through the plurality of optical systems comprises at least one short-time exposed image and at least one long-time exposed image, and if the shake information indicates the digital photographing apparatus is affected by hand-shake.

15. The digital photographing apparatus of claim 11, the digital photographing apparatus further comprises:

a photographing controller configured to control capturing of at least one long-time exposed image and at least one long-time exposed image in a reference optical system of the plurality of optical systems if a plurality of images captured through the plurality of optical systems are for correcting shaking, and if the plurality of images comprises at least one short-time exposed image and at least one long-time exposed image, and if the digital photographing apparatus is not affected by hand-shake.

16. The digital photographing apparatus of claim 11, wherein the digital photographing apparatus further comprises:

a photographing controller configured to control capturing of at least one image having a large exposure value in the base optical system and at least one image having a small exposure value in a reference optical system of the plurality of optical systems, if a plurality of images captured through the plurality of optical systems are images for correcting backlight, and if the plurality of images comprises at least one image having a small exposure value and at least one image having a large exposure value.

17. The digital photographing apparatus of claim 11, wherein the digital photographing apparatus further comprises:

a photographing controller configured to control capturing of at least one telescopic image in the base optical system and at least one wide angle image in a reference optical system of the plurality of optical systems, if at least one wide angle image and at least one telescopic image are captured through the plurality of optical systems.

18. The digital photographing apparatus of claim 11, wherein the digital photographing apparatus further comprises:

a photographing controller configured to control capturing of an image having a short exposure time in the base optical system and an image having a long exposure time in a reference optical system of the plurality of optical systems if a plurality of images for obtaining a three-dimensional image are captured through the plurality of optical systems.

19. The digital photographing apparatus of claim 11, wherein the digital photographing apparatus further comprises:

a photographing controller configured to control capturing of an image having a large amount of input data in the base optical system if a plurality of images for obtaining a three-dimensional image are captured through the plurality of optical systems.

20. The digital photographing apparatus of claim 11, further comprising a result image obtaining unit configured to select an image captured in the base optical system as a result image.

21. The digital photographing apparatus of claim 11, further comprising:

a plurality of acceleration sensors that corresponds to the plurality of optical systems;

wherein each acceleration sensor of the plurality of acceleration sensors is located near each corresponding optical system of the plurality of optical systems and outputs a grip sensing value for determination of the user'"'"'s grip position.

22. A non-transitory computer-readable storage medium having embodied thereon a computer program for controlling a digital photographing apparatus comprising a plurality of optical systems, the computer program comprising:

a code portion for causing a computer to derive shake information from each of the plurality of optical systems;

a code portion for causing the computer to detect a user'"'"'s input for selecting a base optical system determination type; and

a code portion for causing the computer to select a base optical system from among the plurality of optical systems according to the shaking information,

wherein the code portion for causing the computer to select a base optical system further comprises determining that an optical system least shaken from among the plurality of optical systems is the base optical system;

wherein the shake information is a user'"'"'s grip position for the digital photographing apparatus;

wherein the code portion for causing the computer to derive shake information further comprises a code portion for causing the computer to detect the user'"'"'s grip position, and the code portion for causing the computer to select the base optical system further comprises a code portion for causing the computer to determine that an optical system closest to the user'"'"'s grip position is the base optical system

wherein if the user'"'"'s input indicates a prior determination type, the steps of deriving the shake information and selecting the base optical system are performed before capturing an image, and the step of deriving of the shake information further comprises detecting the user'"'"'s grip position, and the step of selecting of the base optical system further comprises determining that an optical system closest to the user'"'"'s grip position is the base optical system, and wherein if the user'"'"'s input indicates a post determination type, the steps of deriving of the shake information and the determining of the base optical system are performed after capturing an image, and the step of deriving of the shaking information further comprises calculating PSFs from the plurality of images captured via the plurality of optical systems, and the step of selecting the base optical system further comprises determining that an optical system least shaken from among the plurality of optical systems is the base optical system based on the calculated PSFs.