Patent ID: 8767115
Filing Date: 2014-07-01
Classification: G03B,H04N

Abstract:
1. An auto-focus method comprising: receiving a first image from an image capturing unit, wherein the first image conforms to a first resolution of the image capturing unit; setting a focus frame in the first image; converting the first image into a second image, wherein the second image conforms to a second resolution of a display unit and the second resolution is smaller than the first resolution; and displaying the second image and the first image within the focus frame in the display unit; wherein the auto-focus method further comprises: calculating a central coordinate of the focus frame within the first image; calculating a display coordinate of the focus frame within the display unit according to the central coordinate, the first resolution and the second resolution; and taking the display coordinate as a center of the focus frame to attach the first image within the focus frame onto the second image, wherein if the central coordinate is defined as (AFx,AFy), the first resolution is defined as CRx*CRy, and the second resolution is defined as DRx*DRy, the display coordinate is represented as