Automatic quick focusing method on high exponent moment

Abstract

The invention provides an automatic quick focusing method for high order moment, the relation between image f(x, y) in the camera, the object g(x, y) and the point expanding function of the imaging system of the camera h(x, y) are expressed into formula 1, thus it can shoot three frames of image from three different positions, thus the focusing position of the digital camera can be determined according to the three frames of images.

Description

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AI Technical Summary

Benefits of technology

This technology improves focus accuracies compared with traditional methods while reducing their overall processing times.

Problems solved by technology

The technical problem addressed in this patented technology relates to improving the accuracy of automatically focusing photos without requiring complicated calculations involving numerous steps such as finding peak positions and calculating the highest intensity level. Additionally, the conventional methods require long calculation times due to their complexity and lack flexibility towards varying factors like distance.

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