SYSTEM AND METHOD FOR PHOTOGRAPHING AND ELECTRONIC APPARATUS USING SAME

• US 20130286279A1
• Filed: 04/26/2013
• Published: 10/31/2013
• Est. Priority Date: 04/26/2012
• Status: Active Grant

• Current Assignee: Futaihua Industry (Shenzhen) Co., Ltd. (Hon Hai Precision Industry Co., Ltd.), Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Futaihua Industry (Shenzhen) Co., Ltd. (Hon Hai Precision Industry Co., Ltd.), Hon Hai Precision Industry Co., Ltd.
• Inventors: YU, QI-LONG
• Granted Patent: US 8,964,108 B2
• Time in Patent Office: Days
• US Class Current: 348/370
• CPC Class Codes: H04N 23/60 Control of cameras or camera modules
• CPC Class Codes: H04N 23/74 by influencing the scene brightness using illuminating means

Abstract

An electronic apparatus includes a lighting device, an imaging device, and a photographing system. The lighting device emits visible light. The imaging device views a subject. Prior to an image capture, the photographing system recognizes blocking of a bright light by a subject'"'"'s hand or arm, where the bright spot of light and the photographing system controls the bright light to switch off and immediately capture an image.

Claims

1. An electronic apparatus, comprising:

a lighting device that emits visible light;

an imaging device that acquires an image of a subject; and

a photographing system comprising;

a recognizing module that recognizes a bright spot of light formed on the subject and determines a state of the bright spot of light by analyzing the image of the subject, the bright spot formed by blocking the visible light with a part of the subject; and

a controlling module that controls the imaging device to execute a photographing function corresponding to the state of the bright spot of light.

2. The electronic apparatus of claim 1, wherein the photographing system further comprises:

an adjusting module that adjusts a direction of the visible light to make the visible light pass the subject but not be blocked by the subject.

3. The electronic apparatus of claim 2, wherein the photographing system further comprises:

a setting module that presets a plurality of correspondences between a plurality of photographing functions and a plurality of states of the bright spot of light.

4. The electronic apparatus of claim 3, wherein the states of the bright spot of light comprise a continuous shining state, the recognizing module determines the bright spot of light in the continuous shining state when the bright spot of light lasts more than one second, the controlling module controls the imaging device to execute a capture corresponding to the continuous shining state of the bright spot of light.

5. The electronic apparatus of claim 3, wherein the states of the bright spot of light comprise a flashing state, the recognizing module determines the bright spot of light in the flashing state when the bright spot of light lasts less than one second, the controlling module controls the imaging device to execute a continuous capture action when the bright spot of light flashes once within a predetermined time interval.

6. The electronic apparatus of claim 5, wherein the controlling module controls the imaging device to execute a switching between ON state and OFF state of a flash lamp when the bright spot of light flashes twice within the predetermined time interval.

7. The electronic apparatus of claim 1, wherein the recognizing module recognizes a bright spot in the image of the subject when a bright area in the image is larger than 1.5 times of an average brightness of ambient light and a radius of the bright area is less than a predetermined value.

8. A photographing method being performed by execution of computer readable program code by a processor of an electronic apparatus, the method comprising:

emitting visible light passing a subject but not blocked by the subject;

acquiring an image of the subject;

analyzing the image to recognize a state of a bright spot of light formed on the subject by blocking the visible light; and

executing a photographing function corresponding to the state of the bright spot of light according to a plurality of preset correspondences between a plurality of photographing functions and the states of the bright spot of light.

9. The method as claimed in claim 8, wherein the states of the bright spot of light comprises a continuous shining state, the bright spot of light is determined in the continuous shining state when the bright spot of light lasts more than one second.

10. The method as claimed in claim 9, wherein a capture action is corresponding to the continuous shining state of the bright spot of light.

11. The method as claimed in claim 8, wherein the states of the bright spot of light comprises a flashing state, the bright spot of light is determined in the flashing state when the bright spot of light lasts less than one second.

12. The method as claimed in claim 11, wherein a continuous capture action is executed when the bright spot of light flashes once within a predetermined time interval.

13. The method as claimed in claim 11, wherein a switching action between ON state and OFF state of a flash lamp is executed when the bright spot of light flashes twice within a predetermined time interval.

14. The method as claimed in claim 8, wherein the bright spot of light is recognized when there is a bright area in the image is larger than 1.5 times of an average brightness of ambient light and a radius of the bright area is less than a predetermined value.