JIGGLE MEASURING SYSTEM AND JIGGLE MEASURING METHOD

• US 20100014846A1
• Filed: 12/10/2007
• Published: 01/21/2010
• Est. Priority Date: 12/22/2006
• Status: Active Grant

• Current Assignee: The University of Electro-Communications
• Original Assignee: Funai Electric Co., Ltd., The University of Electro-Communications
• Inventors: Masaki, Yasuo, Oita, Masaya, Nishi, Kazuki
• Granted Patent: US 7,856,172 B2
• Time in Patent Office: Days
• US Class Current: 396/52
• CPC Class Codes: G03B 2217/005 Blur detection
• CPC Class Codes: G03B 5/00 Adjustment of optical system relative to image or object surface other than for focusing
• CPC Class Codes: H04N 23/68 for stable pick-up of the scene, e.g. compensating for camera body vibrations
• CPC Class Codes: H04N 5/145 Movement estimation for video coding H04N19/51

Abstract

A camera shake measurement system includes a display unit for sequentially displaying a plurality of distinguishable test patterns, a first storage unit for storing as a template each of the plurality of test patterns to be displayed, a second storage unit for storing a composite image produced by photographing at least two test patterns as still images from the plurality of test patterns to be sequentially displayed by a photographing apparatus, and a pattern recognition unit for recognizing images that match each of the templates from the composite image by calling the templates from the first storage unit, calling the composite image from the second storage unit, and moving, for each of the called templates, the template while superposing the template on the composite image.

Claims

1. A camera shake measurement system comprising:

a display unit for sequentially displaying a plurality of distinguishable test patterns;

a first storage unit for storing as a template each of said plurality of test patterns to be displayed;

a second storage unit for storing a composite image produced by photographing at least two test patterns as still images from said plurality of test patterns to be sequentially displayed by a photographing apparatus; and

a pattern recognition unit for recognizing images that match each of the templates from the composite image by calling said templates from said first storage unit, calling said composite image from said second storage unit, and moving, for each of the called templates, the template while superposing the template on said composite image, wherein

a moving direction and a moving amount of each of the templates obtained by said pattern recognition unit are defined respectively as a camera shake direction and a camera shake amount of said photographing apparatus, and said still image is photographed and at least two sets of the camera shake direction and the camera shake amount are obtained.

2. The camera shake measurement system according to claim 1, wherein each of said plurality of test patterns is a figure including portions that are not substantially superposed on each other between the test patterns.

3. The camera shake measurement system according to claim 2, wherein

said moving direction comprises a vertical direction, a horizontal direction, and a rotational direction on a plane of said composite image, and

the above moving amount is detected for each direction.

4. The camera shake measurement system according to claim 3, wherein the moving amount of said vertical direction, the moving amount of said horizontal direction, and the moving amount of said rotational direction are converted respectively to a camera shake amount around a pitch axis, a camera shake amount around a pan axis, and a camera shake amount around a roll axis for said photographing apparatus.

5. The camera shake measurement system according to claim 4, wherein said three camera shake amounts are arranged in the display order of said test patterns to calculate a camera shake trajectory.

6. The camera shake measurement system according to claim 5, wherein each of said test patterns is at least two figures to be planarly displayed.

7. The camera shake measurement system according to claim 1, wherein said moving direction and said moving amount are arranged in the display order of said test patterns to calculate a camera shake trajectory of the photographing apparatus.

8. The camera shake measurement system according to claim 1, wherein

said moving direction comprises a vertical direction, a horizontal direction, and a rotational direction on a plane of said composite image, and

the above moving amount is detected for each direction.

9. The camera shake measurement system according to claim 1,

wherein said moving direction comprises a vertical direction, a horizontal direction, and a rotational direction on a plane of said composite image, and

said moving amount is detected for each direction, and the moving amount of said vertical direction, the moving amount of said horizontal direction, and the moving amount of said rotational direction are converted respectively to a camera shake amount around a pitch axis, a camera shake amount around a pan axis, and a camera shake amount around a roll axis for said photographing apparatus.

10. The camera shake measurement system according to claim 1, wherein each of said test patterns comprises at least two figures to be planarly displayed.

11. A camera shake measurement system comprising:

a first storage unit for storing as a template each of a plurality of distinguishable test patterns;

a second storage unit for storing a composite image produced by photographing at least two test patterns of said plurality of test patterns to be sequentially displayed as still images by a photographing apparatus; and

a pattern recognition unit for recognizing an image that matches each of said templates from said composite image by calling said templates from said first storage unit, calling said composite image from said second storage unit, and moving, for each of said called templates, the template while superposing the template on said composite image,

wherein a moving direction and a moving amount of each of said templates obtained by said pattern recognition unit are defined as a camera shake direction and a camera shake amount of said photographing apparatus and at least two sets of the camera shake direction and the camera shake amount are obtained.

12. A camera shake measurement method comprising:

displaying a plurality of distinguishable test patterns sequentially;

storing as a template each of said plurality of test patterns to be displayed;

storing a composite image produced by photographing at least two test patterns of said test patterns as still images by a photographing apparatus; and

recognizing images that match each of said templates from said composite image by calling said templates, calling said composite image, and moving, for each of said called templates, the template while superposing the template on the composite image, wherein

a moving direction and a moving amount of each of said templates are defined as a camera shake direction and a camera shake amount of said photographing apparatus and at least two sets of the camera shake direction and the camera shake amount are obtained.