INFORMATION DEVICE, IMAGING APPARATUS HAVING THE SAME, AND METHOD OF ANGLE CORRECTION OF OBJECT

• US 20110007169A1
• Filed: 06/28/2010
• Published: 01/13/2011
• Est. Priority Date: 07/08/2009
• Status: Active Grant

• Current Assignee: Ricoh Company Limited
• Original Assignee: Ricoh Company Limited
• Inventors: YASUDA, Takuroh
• Granted Patent: US 8,599,272 B2
• Time in Patent Office: Days
• US Class Current: 348/208.4
• CPC Class Codes: G01C 9/00 Measuring inclination, e.g. by clinometers, by levels
• CPC Class Codes: G03B 17/18 Signals indicating condition of a camera member or suitability of light indicating depth of field G03B13/30
• CPC Class Codes: G03B 2217/005 Blur detection
• CPC Class Codes: H04N 23/633 for displaying additional information relating to control or operation of the camera

Abstract

An information device includes: an angle detector which outputs data for obtaining a roll angle and a pitch angle of an object; and a corrector which corrects the roll angle based on the pitch angle obtained from the data outputted by the angle detector.

Claims

1. An information device, comprising:

an angle detector which outputs data for obtaining a roll angle and a pitch angle of an object; and

a corrector which corrects the roll angle based on the pitch angle obtained from the data outputted by the angle detector.

2. The information device according to claim 1, comprising:

a correction table in which a reference roll angle used for a correction of the roll angle is set per range of a pitch angle, wherein the corrector automatically selects the reference roll angle based on the pitch angle by use of the correction table.

3. The information device according to claim 2, wherein values in the correction table are symmetrical to a pitch angle of 0°

.

4. The information device according to claim 1, wherein the corrector calculates a correction roll angle by a correction formula expressed by a linear shape which is derived by pitch angles obtained from the data outputted by the angle detector, and corrects the roll angle by use of the calculated correction roll angle.

5. The information device according to claim 1, wherein the angle detector is a 2-axis acceleration sensor or a 3-axis acceleration sensor.

6. A digital camera, which is an object, comprising:

an information device, including;

an angle detector which outputs data for obtaining a roll angle and a pitch angle of the object; and

a corrector which corrects the roll angle based on the pitch angle obtained from the data outputted by the angle detector.

7. A method of an angle correction of an object, comprising:

a step of an angle detection which outputs data for obtaining a roll angle and a pitch angle of the object; and

a step of a correction which corrects the roll angle based on the pitch angle obtained from the data outputted in the step of the angle detection.

8. The method of the angle correction according to claim 7, wherein in the step of the correction, a correction table in which a reference roll angle used for a correction of the roll angle is set per range of a pitch angle is used, and a reference roll angle is selected based on the pitch angle.

9. The method of the angle correction according to claim 8, wherein values in the correction table are symmetrical to a pitch angle of 0°

.

10. The method of the angle correction according to claim 7, wherein the step of the correction calculates a correction roll angle by a correction formula expressed by a linear shape which is derived by pitch angles obtained from the data outputted in the step of the angle detection, and corrects the roll angle by use of the calculated correction roll angle.

11. The method of the angle correction according to claim 7, wherein in the step of the angle detection, a 2-axis acceleration sensor or a 3-axis acceleration sensor is used.