Method and electronic device for tracking audio

1. A method of tracking audio by an electronic device, the method comprising:

generating video data by obtaining an external image;

extracting at least one object included in the external image from the video data;

determining a number of the at least one extracted object;

determining, when the number of the at least one extracted object is one, a location of the at least one extracted object in the external image; and

controlling an audio reception unit to receive an audio signal based on at least one of the number of the at least one extracted object or the location of the at least one extracted object,

wherein controlling the audio reception unit comprises setting the audio reception unit to be non-directional when the number of the at least one extracted object is two or more.

2. The method of claim 1 , wherein the audio reception unit comprises a plurality of microphones.

3. The method of claim 2 , further comprising:

displaying the external image; and

displaying a selection area for selecting the extracted object.

4. The method of claim 3 , further comprising:

receiving a selection input for the displayed selection area,

wherein extracting the object comprises selecting the object based on the received selection input.

5. The method of claim 2 , wherein extracting the object comprises:

measuring at least one of location information, movement information, and number information of the object;

tracking and updating the object based on the measured at least one of location information, movement information, and the number information of the object; and

extracting the object included in the external image by tracking and updating the object.

6. The method of claim 2 , wherein determining the location of the at least one extracted object comprises determining if the at least one extracted object is positioned within a preset location image area.

7. The method of claim 6 , wherein controlling the audio reception unit comprises setting the audio reception unit to be unidirectional for enhancing an audio recognition ratio for the extracted object compared with an audio recognition ratio of the external image when the extracted object is positioned within the preset location image area.

8. The method of claim 6 , wherein controlling the audio reception unit comprises setting the audio reception unit to be non-directional for providing an audio recognition rate of the extracted object equal to an audio recognition rate of the external image when the extracted object is not positioned within the preset location image area.

9. The method of claim 2 , wherein controlling the audio reception unit further comprises controlling the audio reception unit when a call function is executed in the electronic device.

10. The method of claim 2 , wherein controlling the audio reception unit further comprises controlling the audio reception unit when a video recording function is executed in the electronic device.

11. An electronic device, comprising:

a video processing unit configured to generate video data by obtaining an external image;

an audio reception unit configured to receive an audio signal; and

a controller configured to extract at least one object included in the external image from the video data, determine a number of the at least one extracted object and, if the number of the at least one extracted object is one, determine a location of the at least one extracted object in the external image, and control the audio reception unit to receive the audio signal based on the at least one of the number of the at least one extracted object or the location of the at least one extracted object,

wherein controlling the audio reception unit comprises setting the audio reception unit to be non-directional when the number of the at least one extracted object is two or more.

12. The electronic device of claim 11 , wherein the audio reception unit comprises a plurality of microphones.

13. The electronic device of claim 12 , further comprising a touch screen configured to display the external image and a selection area for selecting the extracted object.

14. The electronic device of claim 13 , wherein the touch screen is further configured to receive a selection input for the displayed selection area and to select the extracted object based on the received selection input.

15. The electronic device of claim 12 , wherein the video processing unit is disposed on at least one of a front side and a rear side of the electronic device.

16. The electronic device of claim 12 , wherein the controller comprises:

an object measurement unit configured to measure at least one of location information, movement information, and number information of the extracted object;

an object tracking unit configured to track and update the extracted object based on the measured at least one of location information, movement information, and the number information of the extracted object; and

an object extraction unit configured to extract the object included in the external image by tracking and updating the object.

17. The electronic device of claim 12 , wherein the controller is further configured to determine if the at least one extracted object is positioned within a preset location image area.

18. The electronic device of claim 17 , wherein the controller is further configured to set the audio reception unit to be unidirectional for enhancing an audio recognition ratio for the extracted object compared with an audio recognition ratio of the external image when the extracted object is positioned within the preset location image area.

19. The electronic device of claim 17 , wherein the controller is further configured to set the audio reception unit to be non-directional for providing an audio recognition rate of the extracted object equal to an audio recognition rate of the external image when the extracted object is not positioned within the preset location image area.

20. The electronic device of claim 12 , wherein controlling the audio reception unit further comprises controlling the audio reception unit when a call function is executed in the electronic device.

21. The electronic device of claim 12 , wherein controlling the audio reception unit to receive the audio signal comprises controlling the audio reception unit when a video recording function is executed in the electronic device.