Abstract: A method comprises detecting edges in at least a region of a captured focus image, using adjacent pixels of the region to obtain first edge detection results and filtering the first edge detection results. The first filtering comprises comparing differences in pixel contrast in the first edge detection results with a first threshold value and removing the differences in pixel contrast that are less than the first threshold value from the first edge detection results. The method further comprises detecting edges in at least the region, using non-adjacent pixels of the region to obtain second edge detection results and filtering the second edge detection results. The second filtering comprising comparing differences in pixel contrast in the second edge detection results with a second threshold value and removing the differences in pixel contrast that are less than the second threshold value from the second edge detection results.

Abstract: Autofocus methods and digital cameras employing a holographic element or hologram. The holographic element generates one or more displaced images that are processed to generate a bipolar contrast signal that provides for improved autofocus performance of the digital camera.

Abstract: Automated zoom control and/or automated wide angle capture for digital camera systems and related methods. The camera is configured to have imaging apparatus that selectively couples images from an image scene to an image sensing apparatus that senses the coupled images. A processor implements an automated zoom control function that automatically records a plurality of closely related images having different zoom levels sensed by the image apparatus, and from which a user selects images for storage.

Abstract: The invention discloses a system and method for an optical imaging device comprising an image sensor for reading image data from an original slid over the image sensor, a variable power interface for varying an intensity of an illumination source corresponding to the image sensor, wherein the intensity is varied responsive to velocities of the original slid over the image sensor, and a processor for processing the image data.

Abstract: The invention discloses a system and method for an optical imaging device comprising an image sensor for reading image data from an original slid over the image sensor, a variable power interface for varying an intensity of an illumination source corresponding to the image sensor, wherein the intensity is varied responsive to velocities of the original slid over the image sensor, and a processor for processing the image data.