Patent ID: 6975348
Filing Date: 2005-12-13
Classification: G01S,H04N

Abstract:
1. A focusing method for a moving object which utilizes a photographic instrument to take images of a moving object, and focuses said photographic instrument by means of a pattern matching method, comprises the following steps: setting an optimal matching pattern position; retrieving a serial image of said moving object; acquiring an initial pattern of said moving object and an initial pattern position according to said serial image; and comparing said initial pattern position and said optimal matching pattern position so as to make an adjustment in the photographic angle of said photographic instrument; wherein the step of acquiring said initial pattern comprises the following sub-steps: retrieving an image of said serial image; figuring out a gray histogram of said image; figuring out a histogram projection drawing of said image; and acquiring said initial pattern and said initial pattern position according to said gray histogram and said histogram projection drawing.