Patent ID: 8013909

Claim:
An apparatus comprising: a camera configured to capture a first image frame and a second image frame, a determiner configured to determine a required total exposure level from a captured image frame, a motion detector configured to detect movement from said first image frame and said second image frame, and an adjustor configured to adjust exposure time of said camera for a third image frame, wherein said apparatus is configured to: determine a first statistical number of a block of said first image frame, determine a second statistical number of a corresponding block of said second image frame, detect movement by comparing said first statistical number with said second statistical number define specific criterion values for exposure time and an analog gain, wherein at least part of the criterion values of at least the exposure time depends on the detected amount of the movement, define a first value range of the total exposure level and a second value range of the total exposure level based on the specific criterion values for the exposure time and the analog gain, and adjust the exposure time of the camera, at a value corresponding to the required total exposure level when the required total exposure level is in the first value range of the total exposure level, for capturing the third image frame.