Method of producing an image with a light track

• US 8,610,794 B2
• Filed: 10/12/2010
• Issued: 12/17/2013
• Est. Priority Date: 10/12/2010
• Status: Expired due to Fees

• Current Assignee: Ability Enterprise Co., Ltd.
• Original Assignee: Ability Enterprise Co., Ltd.
• Inventors: Chen, Chi-De
• Primary Examiner(s): Hannett, James
• Assistant Examiner(s): TEJANO, DWIGHT ALEX C
• Application Number:
  US12/903,106
• Publication Number:
  US 20120086831A1
• Time in Patent Office: 1,162 Days
• Field of Search: None
• US Class Current: 348/229.1
• CPC Class Codes: G03B 15/08 Trick photography
• CPC Class Codes: G03B 17/54 with projector
• CPC Class Codes: G03B 2205/00 Adjustment of optical system relative to image or object surface other than for focusing
• CPC Class Codes: H04N 23/63 by using electronic viewfinders
• CPC Class Codes: H04N 5/2621 Cameras specially adapted for the electronic generation of special effects during image pickup, e.g. digital cameras, camcorders, video cameras having integrated special effects capability

Abstract

A method of producing an image is disclosed. At least one symbol is received. The at least one symbol is, optionally, displayed on a first image with at least one light spot. Subsequently, a position of an incident light projected on an image sensor of an image capturing device is varied during an exposure period according to the at least one symbol. Accordingly, a second image with a light track that traces the at least one symbol is captured.

Claims

1. A method of producing an image, comprising:

receiving at least one symbol;

capturing a first image with at least one light spot;

displaying the at least one symbol on a first image with at least one light spot; and

varying a position of an incident light projected on an image sensor of an image capturing device during an exposure period according to the at least one symbol to capture a second image, including blocking the image sensor from exposure during a transition period between two of the symbols in a case where more than one symbol is received.

2. The method of claim 1, after receiving the at least one symbol, further comprising:

subjecting the at least one symbol to signal processing, low pass filtering, or band pass filtering.

3. The method of claim 1, wherein the first image has at least one light spot, which includes at least one pixel with a brightness value greater than brightness values of pixels of non-light spot portion of the first image.

4. The method of claim 1, wherein the step of varying the position of the incident light comprises:

moving the image capturing device according to the at least one symbol during the exposure period.

5. The method of claim 1, wherein the step of varying the position of the incident light is followed by a further step of:

holding the position of the incident light still during a portion of the exposure period.

6. The method of claim 1, further comprising:

adjusting brightness values of pixels of the second image according to a length of the exposure period.

7. A method of producing an image, comprising:

capturing a first image with at least one light spot;

receiving at least one symbol;

displaying the at least one symbol on the first image; and

varying a position of an incident light projected on an image sensor of an image capturing device during an exposure period according to the at least one symbol to capture a second image, including blocking the image sensor from exposure during a transition period between two of the symbols in a case where more than one symbol is received.

8. The method of claim 7, after receiving the at least one symbol, further comprising:

subjecting the at least one symbol to signal processing, low pass filtering, or band pass filtering.

9. The method of claim 7, wherein the first image has at least one light spot, which includes at least one pixel with a brightness value greater than brightness values of pixels of non-light spot portion of the first image.

10. The method of claim 7, wherein the step of varying the position of the incident light comprises:

moving the image capturing device according to the at least one symbol during the exposure period.

11. The method of claim 7, wherein the step of varying the position of the incident light is followed by a further step of:

holding the position of the incident light still during a portion of the exposure period.

12. The method of claim 7, further comprising:

adjusting brightness values of pixels of the second image according to a length of the exposure period.

13. A method of producing an image, comprising:

receiving at least one symbol;

varying a position of an incident light projected on an image sensor of an image capturing device during an exposure period according to the at least one symbol to capture an image with a light track that traces the at least one symbol; and

shutting down a shutter during a transition period between two of the symbols in a case where more than one symbol is received during the exposure period.

14. The method of claim 13, after receiving the at least one symbol, further comprising:

subjecting the at least one symbol to signal processing, low pass filtering, or band pass filtering.

15. The method of claim 13, wherein the step of varying the position of the incident light comprises:

moving a lens or the image sensor of the image capturing device relatively for the incident light projected on the image sensor according to the at least one symbol during an exposure period.

16. The method of claim 13, wherein the step of varying the position of the incident light is followed by a further step of:

holding the position of the incident light still during a portion of the exposure period.

17. The method of claim 13, further comprising:

adjusting brightness values of pixels of the image according to a length of the exposure period.