Patent ID: 8340512
Filing Date: 2012-12-25
Classification: G02B,G03B,H04N

Abstract:
1. A method of focusing a lens assembly when capturing images of a scene on an image sensor, said lens assembly being provided in an image capture device (ICD) and said method being implemented in said ICD, said method comprising: receiving a plurality of sets of pixel values, wherein each set of pixel values of said plurality of sets of pixel values represents an image of a scene and is obtained with said lens assembly configured using a corresponding one of a plurality of sets of configuration parameters; identifying a region of interest forming a part of said scene by calculating whether a first and second chrominance values of a pair of chrominance values lies in a first and second range, respectively, the pair of chrominance values corresponding to a first pixel value contained in a set of pixel values, said region of interest having a corresponding degree of focus in each of said plurality of sets of pixel values determining a first set of configuration parameters to achieve a desired degree of focus based on said degrees of focus and at least one of said plurality of sets of configuration parameters; and generating signals to configure said lens assembly using said first set of configuration parameters.