A novel auto-focusing method based on hadamard transformation
A focusing evaluation function is proposed where the high freuqency hadamard coefficents are utilized to evaluate whether the camera is in focus or not. The experimentalresutl results show that the proposed method can focus exactly and is not sensitive to noise compared with several traditional methods. Moreover,the new method requires few computations and is easy to be realized with hardware.
auto-focusingHadamard transformfocusing evaluation function
NETL
NSTL
万方数据
维普
