Method for determining imaging quality of a camera via a motion sensor and ISO settings

• US 20090153690A1
• Filed: 02/19/2008
• Published: 06/18/2009
• Est. Priority Date: 12/14/2007
• Status: Abandoned Application

• Current Assignee: Altek Corporation
• Original Assignee: Altek Corporation
• Inventors: Han, Shih-Chang, Li, Yun-Chin, Yang, Chin-Lung
• Application Number:
  US12/071,191
• Publication Number:
  US 20090153690A1
• Time in Patent Office: Days
• US Class Current: 348/222.100
• CPC Class Codes: H04N 23/68 for stable pick-up of the scene, e.g. compensating for camera body vibrations
• CPC Class Codes: H04N 23/6812 based on additional sensors, e.g. acceleration sensors

Abstract

A method for determining imaging quality of a camera via a motion sensor and ISO settings uses a CCD sensor module, an ISO setting module, a shutter module, a zoom module and a color temperature module to provide all kinds of information of an object image and transmit the information to an image processing unit to be processed, uses a motion sensor module to provide camera motion information, and then uses the image processing unit to estimate the level of motion of the camera and adjust and correct the information provided by the modules according to the camera motion information provided by the motion sensor module to select optimum settings and compression quality.

Claims

1. A method for determining imaging quality of a camera via a motion sensor and ISO settings comprising the steps of:

capturing and recording information of an object image and transmitting the information to an image processing unit to be processed by a Charge-Coupled Device (CCD) sensor module;

providing ISO setting information for the object image and transmitting the ISO setting information to the image processing unit to be processed by an ISO setting module;

transmitting shutter time setting information for the object image to the image processing unit to be processed by a shutter module;

providing camera motion information and transmitting the camera motion information to the image processing unit to be processed by a motion sensor module; and

using the image processing unit to estimate a level of motion of the camera and adjust and correct the information which is provided by the ISO setting module and the shutter module, according to the camera motion information provided by the motion sensor module, to select optimum settings and compression quality for obtaining an optimum image.

2. The method as claimed in claim 1, further comprising the step of:

providing focus setting information and transmitting the focus setting information to the image processing unit to be processed by a zoom module.

3. The method as claimed in claim 1, further comprising the step of:

providing color temperature change information and transmitting the color temperature change information to the image processing unit to be processed by a color temperature module.

4. The method as claimed in claim 1, wherein the camera motion information shows displacement or rotating states of the camera in the direction of X, Y and Z axes, which are caused by movement of the camera, and the camera motion information is computed and obtained by the motion sensor module.

5. The method as claimed in claim 1, wherein the motion sensor module is an inertial measurement assembly.

6. The method as claimed in claim 5, wherein the inertial measurement assembly includes at least one gyroscope.

7. The method as claimed in claim 1, wherein the motion sensor module determines the level of motion of the camera during capturing the image and calculates an imaging point spread function corresponding to the level of motion of the camera.

8. The method as claimed in claim 7, wherein for the ISO setting information, different point spread functions may be adopted.